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HS004
Annual bedload accumulation from sediment basin surveys in small gauged watersheds in the Andrews Experimental Forest, 1957 to present
Sherri
L.
Johnson
US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way
Corvallis
OR
97331
USA
541-758-7771
sherri.johnson2@usda.gov
sherri.johnson@oregonstate.edu
https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
Jack
S.
Rothacher
Sherri
L.
Johnson
US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way
Corvallis
OR
97331
USA
541-758-7771
sherri.johnson2@usda.gov
sherri.johnson@oregonstate.edu
https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
Principal Investigator
Julia
A.
Jones
Oregon State University;Department of Geosciences; Wilkinson Hall 104
Corvallis
OR
97331-5506
USA
(541) 737-1224
Julia.Jones@oregonstate.edu
geojulia@comcast.net
http://ceoas.oregonstate.edu/profile/jones/
http://orcid.org/0000-0001-9429-8925
Other Researcher
Gordon
E.
Grant
USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way
Corvallis
OR
97331
USA
(541) 750-7328
gordon.grant@oregonstate.edu
ggrant@fs.fed.us
http://www.fsl.orst.edu/wpg/gordon.htm
Other Researcher
Frederick
J.
Swanson
USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way
Corvallis
OR
97331
USA
(541) 750-7355
fred.swanson@oregonstate.edu
Other Researcher
Greg
Downing
Forestry Sciences Lab;3200 SW Jefferson Way
Corvallis
OR
97333
USA
(541) 750-7283
(541) 822-6301
greg.downing@oregonstate.edu
Method Contact
Craig
Creel
USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way
Corvallis
OR
97331
USA
(541) 750-7326
(541) 822-6301
cdcreel@comcast.net
Former Investigator
Richard
L.
Fredriksen
Former Investigator
C.
Ted
Dyrness
Oregon State University;Dept. of Forest Science;321 Richardson Hall
Corvallis
OR
97331-5752
USA
(541) 750-7325
(541) 928-8897
Former Investigator
Alfred
B.
Levno
Corvallis
OR
97331
USA
ablevno@comcast.net
allevno@hotmail.com
Former Investigator
Sherri
L.
Johnson
US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way
Corvallis
OR
97331
USA
541-758-7771
sherri.johnson2@usda.gov
sherri.johnson@oregonstate.edu
https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
Creator
Jack
S.
Rothacher
Creator
2019-10-11
Sediment debris basins are established within the Andrews Experimental Forest as part of paired watershed experiments examining differences in streamflow and nutrient chemistry due to timber harvest. Basins are constructed below the stream gaging station in each of five basins, and these basins and the deposits of sediment within them are re-surveyed or emptied annually to measure bedload sediment production. Basins are measured on Watersheds 1, 2 (control) and 3 beginning with wateryear 1957 and on Watersheds 9 (control) and 10 beginning wateryear 1974. Data collection is ongoing at an annual time step. Data provided include the watershed name, wateryear, survey method, watershed area, annual bedload volume and accumulation rate. These data display both the chronic production of sediment, as well as pulsed, episodic bedload from landslides within the contributing basins.
debris flows
landslides
disturbance
erosion
sedimentation
inorganic nutrients
sediments
LTER controlled vocabulary
Long-Term Ecological Research (LTER)
Andrews Experimental Forest site
thesaurus
disturbance
inorganic nutrients
LTER core research areas
Andrews WS 1, 2, 3 bedload accumulation data have been summarized by annual reports on file at Corvallis, Oregon, Forestry Sciences Lab, and now scanned and online in association with this study data. Annual calculations were originally hand calculated, 1957-1978; calculated with hp 97 desk calculator,1979-1985, and calculated with desktop application programs, 1986-present. After 1990, field recorders are used to record the measurements (CMT recorders (1990) and Husky Hunter recorders (1994), waterproof laptop computers (2005).
WS 3 debris basin was reconstructed after the original installation was destroyed by a slide in December, 1964, and subsequently reconstructed after February 1996 debris flow avalanche. WS 1 debris basin is not believed to have captured all bedload material in the immediate years following burning in fall, 1966. Related PublicationsFredriksen, R. L. 1965. Sedimentation after logging road construction in a small western Oregon watershed. In: Proceedings of the federal inter-agency sedimentation conference; 1963; [Place of meeting unknown]. Misc. Publ. 970. Washington, DC: U.S. Department of Agriculture, Forest Service: 56-59.Rothacher, Jack; Dyrness, C. T.; Fredriksen, Richard L. 1967. Hydrologic and related characteristics of three small watersheds in the Oregon Cascades. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 54 p.Fredriksen, R. L. 1970. Erosion and sedimentation following road construction and timber harvest on unstable soils in three small western Oregon watersheds. Res. Pap. PNW-104. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 15 p.Fredriksen, R. L. 1973. Impact of forest management on stream water quality in western Oregon. In: Mater, Milton H., ed. Pollution abatement and control in the forest products industry: Proceedings; [1971-1972]; [Place of publication unknown]: [Publisher unknown]: 37-50.Swanson, Frederick J.; Fredriksen, Richard L. 1982. Sediment routing and budgets: implications for judging impacts of forestry practices. In: Swanson, Frederick J.; Janda, Richard J.; Dunne, Thomas; Swanston, Douglas N., eds. Sediment budgets and routing in forested drainage basins. Gen. Tech. Rep. PNW-141. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station: 129-137.Grant, G. E.; Wolff, A. L. 1991. Long-term patterns of sediment transport after timber harvest, western Cascade Mountains, Oregon, USA. In: Peters, N. E.; Walling, D. E., eds. Sediment and stream water quality in a changing environment: trends and explanation, Proceedings of the Vienna IAHS symposium , Vienna, Austria. IAHS Publication No. 203. Oxfordshire, United Kingdom: International Association of Hydrological Sciences: 31-40. [Online]. Available: http://www.cig.ensmp.fr/~iahs/redbooks/203.htmDyrness, Ted; Swanson, Fred; Grant, Gordon; Gregory, Stan; Jones, Julia; Kurosawa, Kyoshi; Levno, Al; Henshaw, Don; Hammond, Hazel. 1996. Flood of February, 1996 in the H.J. Andrews Experimental Forest. [Place of publication unknown]: [Publisher unknown]. [http://andrewsforest.oregonstate.edu/pubs/webdocs/reports/flood.htm (8 June 2011)].Related FilesTitle: Data calculation WS3 1996 slide depositDescription: Calculations for 1996 Slide Deposit at H.J.A. Watershed #3URL: https://andrewsforest.oregonstate.edu/data/studies/hs04/ws3sed96.txtTitle: Data collection notes 1965-1998Description: Description of problems encounteredURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/problems.txtTitle: Annual Sediment Basin Summaries 2005 to 2018Description: Sediment basin calculation summary for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Annual_Sediment_Basin_Reports_2005_to_2018.pdfTitle: Annual Sediment Basin Report 1956Description: Wateryear 1956 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1956.pdfTitle: Annual Sediment Basin Report 1957Description: Wateryear 1957 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1957.pdfTitle: Annual Sediment Basin Report 1958Description: Wateryear 1958 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1958.pdfTitle: Annual Sediment Basin Report 1959Description: Wateryear 1959 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1959.pdfTitle: Annual Sediment Basin Report 1960Description: Wateryear 1960 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1960.pdfTitle: Annual Sediment Basin Report 1961Description: Wateryear 1961 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1961.pdfTitle: Annual Sediment Basin Report 1962Description: Wateryear 1962 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1962.pdfTitle: Annual Sediment Basin Report 1963Description: Wateryear 1963 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1963.pdfTitle: Annual Sediment Basin Report 1964Description: Wateryear 1964 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1964.pdfTitle: Annual Sediment Basin Report 1965Description: Wateryear 1965 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1965.pdfTitle: Annual Sediment Basin Report 1966Description: Wateryear 1966 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1966.pdfTitle: Annual Sediment Basin Report 1967Description: Wateryear 1967 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1967.pdfTitle: Annual Sediment Basin Report 1968Description: Wateryear 1968 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1968.pdfTitle: Annual Sediment Basin Report 1969Description: Wateryear 1969 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1969.pdfTitle: Annual Sediment Basin Report 1970Description: Wateryear 1970 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1970.pdfTitle: Annual Sediment Basin Report 1971Description: Wateryear 1971 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1971.pdfTitle: Annual Sediment Basin Report 1972Description: Wateryear 1972 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1972.pdfTitle: Annual Sediment Basin Report 1973Description: Wateryear 1973 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1973.pdfTitle: Annual Sediment Basin Report 1974-1979Description: Wateryear 1974-1979 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1974_1979.pdfTitle: Annual Sediment Basin Report 1980Description: Wateryear 1980 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1980.pdfTitle: Annual Sediment Basin Report 1981Description: Wateryear 1981 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1981.pdfTitle: Annual Sediment Basin Report 1982Description: Wateryear 1982 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1982.pdfTitle: Annual Sediment Basin Report 1983-1985Description: Wateryear 1983-1985 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1983_1985.pdfTitle: Annual Sediment Basin Report 1986-1989Description: Wateryear 1986-1989 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1986_1989.pdfTitle: Annual Sediment Basin Report 1990Description: Wateryear 1990 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1990.pdfTitle: Annual Sediment Basin Report 1991Description: Wateryear 1991 sediment basin historic report for annual bedload accumulationURL: https://andrewsforest.oregonstate.edu/data/studies/hs04/HJA_Sediment_1991.pdf
Data Use Agreement:
The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.
It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.
While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.
General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.
http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=HS004
HJ Andrews Experimental Forest, western Cascades of Oregon, Watersheds 1, 2, 3, 9, and 10
-122.73491200
-122.10084700
44.28196400
43.00528900
1956-10-01
2018-10-01
Forest disturbance, including timber harvest and natural disturbances, influence the rate and timing of exports from headwater basins, including dissolved, suspended, and bedload. Bedload is the material that is bounced or dragged along the base of the channel, and ranges from gravel to boulder size. The objective of this study is to quantify the effect of road construction, timber harvest and post-harvest burning on bedload production from small headwater basins. The study design (before/after, control/impacted) is intended to dsplay the effects of anthropogenic disturbance on bedload sediment production over multiple decades.
An update history is logged and maintained with each new
version of every dataset.
annually
Database established in SQLServer as an "old database". That is, legacy web pages are still in use and complete migration is still needed.
Version1
2003-10-01
Created metadata in SQL. Uploaded data into SQL Server (format 2 only). Removed link from "old databases".
Version3
2011-02-17
Reviewed dataset to upload to PASTA. Changed place_keyword_type_id=2 for study sites in catalog_place_keyword. Update entity 2 CSV file with new deliminator.
Version6
2015-11-19
Database is updated for wateryears 2010 through 2016. A methods code is added, fields for watershed area and accumulation volume is added, and a notes field is added. Metadata is updated and method descriptions are enhanced. Calculation summaries and historic sediment basin annual reports are posted as related files.
Version8
2017-03-15
Entity 1 raw survey data is compiled from annual desktop database and spreadsheet files and placed online for first time.
Version9
2017-03-21
A primary key is added to Entity 1. Some minor changes to the data were made to correct for 2 duplicates.
Version10
2017-03-22
Entity 1 raw survey data and Entity 2 annual bedload summaries are compiled and updated for 2017 and 2018. Bedload reports are updated for 2017 and 2018.
Version11
2019-10-11
Information Manager
Andrews Forest LTER Program
US Forest Service Pacific Northwest Research Station
3200 SW Jefferson Way
Corvallis
OR
97331
hjaweb@fsl.orst.edu
http://andrewsforest.oregonstate.edu/
Donald
L.
Henshaw
Pacific Northwest Research Station; Corvallis Forestry Sciences Lab; 3200 SW Jefferson Way
Corvallis
Oregon
97331
hja_admin@fsl.orst.edu
http://orcid.org/0000-0001-5952-4528
Andrews Forest LTER Site
Forest Ecosystems and Society Department in Forestry
Oregon State University
201K Richardson Hall
Corvallis
OR
97331-5752
(541) 737-8480
lterweb@fsl.orst.edu
http://andrewsforest.oregonstate.edu/
Field Methods - HS004
Sediment catchment basins were constructed below the gaging station on each stream in 1955 to examine changes in bedload accumulation with respect to timber harvest and road building. WS1 and WS2 are earthen dams, not lined with concrete, and with no associated diversion structure. Neither of these basins serve as the spillway for streamflow. WS1 basin was significantly altered in basin collection area following the February, 1996 flood. The WS3 basin had a wooden containment structure. Following debris torrents in December, 1964, the catchment basin was remodeled. Further rebuilding was necessary in 1986. In February, 1996, a debris torrent completely destroyed the basin. In February, 1998, the basin was reconstructed. The newer basin is an earthen dam covered with concrete, is concrete lined and serves as the spillway. A stream diversion structure is established at the entry. The basin is configured to be cleaned on a storm by storm basin, although this has only been employed once in 1999 when the basin filled in January. The sediment catchment basins at WS 9 and 10 were constructed in 1974. The WS 9 and 10 basins are concrete lined with wooden dams which serve as the spillway. The wooden dam/spillway of the WS9 basin was reconstructed in 1996. The wooden dam/spillway of the WS10 basin was reconstructed in 2005.
A level, leveling rod, and tape are used to measure bottom elevation (.01m) at each intersection of a 3-foot grid (2-foot grid on WS 3) over the catchment basin. Monumented cross-section end points are spaced at regular intervals along a baseline at each end of the basin. A tape is stretched across the basin between surveyed end points at the baselines to locate the grid points. A permanent benchmark is established and elevation with respect to the permanent benchmark is measured at the beginning and end of the survey, and routinely checked between alternate cross-section transects. This procedure allows for comparison from year to year and reveals any changes in the elevation or level of the surveying instrument that might occur during the survey.
Sediment basin surveys are conducted annually on Watersheds 1, 2 and 3 (before 1998), and volumetric measurements made with 5-gallon bucket counts or wheelbarrow or backhoe bucket counts on the smaller Watersheds 9 and 10, and WS3 (beginning in 1998). Basin surveys are designed to build basin profiles that are used to determine a change in average bottom elevation between annual surveys. The basins are cleaned annually and resurveyed to provide a base elevation for the following year. Local contractors are employed and use a front-end loader or excavator to clean certain basins that are near or have reached capacity (typically WS 1 and WS3). Watershed 9 and 10 are usually cleaned with a crew using shovels and buckets to measure wet sediment volume. When large deposits of sediment occur in these basins they are surveyed using the same methods used at WS1 and WS2.
Permanent benchmarks are established near all gaging stations. In 1977 permanent auxiliary benchmarks (1/4" bolts set in concrete) were established near each of the catchment basins and are routinely measured in annual surveys. These new auxiliary benchmarks replaced nails or spikes driven into stumps or trees as reference points. Annual checks, which monitored the elevational difference between benchmarks and reference points, showed unexpected changes. The reference point on the Watershed 3 dam was actually sinking, while at Watershed 1 and 2 stumps containing the reference spikes were deteriorating and reliable measurements became increasingly difficult. The elevational difference between the new auxiliary benchmarks and permanent benchmarks were monitored until 1983 when surveys indicated the new auxiliary benchmarks were stable.
In an effort to identify or capture the timing and volume of material delivered to the Watershed 1 sediment basin during individual storms, a device for measuring the profile of the sediment deposit was installed in September 1981. Pulleys were fixed to two trees growing in appropriate positions at either end of the long axis of the sediment delta. A plastic-coated cable was run between. the two pulleys - washline style. A hook was attached to the cable and a fabric measuring tape attached to a lead clock weight was strung through the hook. A nail driven into one of the trees was used as a measurement point. The cable was advanced at one meter intervals, where the weight was lowered to the surface of the water and the tape distance recorded. Then the weight was lowered to the bottom of the basin and a second tape distance was recorded. This procedure was repeated at each meter along the axis of the delta. A meter stick (partially submerged) attached to another basin-side tree served as a staff gage and was used to normalize differences in water surface level between surveys, and determine the amount of cable stretch or contraction due to temperature variations. Changes in the water surface tape distances not accounted for by the change in the basin water level were assumed to be due to cable stretch/contraction, and were used to adjust the bottom tape distances to make more accurate comparisons between periodic measurements.
Level, leveling rod, and tape
Processing Procedures - HS004
Determination of sediment basin accumulation is based on the change in average bottom elevation by comparing the same survey points in two annual surveys. While all points along the cross-section line are recorded, not all points are used in calculating mean basin elevation and the number of points included in any comparative calculation is variable. Initially all points between cross-section end posts were included in the calculations, but in years of little or no bedload accumulation small errors began to compound and led to negative accumulation calculations. Errors in rod placement or instrument readings were hard to quantify, but some potential errors were identified and eliminated. Points on steep slopes of the sediment basins, which accumulate virtually no sediment, may have produced erroneous rod readings and slope points are typically eliminated from the calculations. These points occupy less than ten percent of the basin area at all three watersheds. When a basin is filled to near capacity, points on the bottom that may have been on a steep slope in a previous survey are included in the calculations.
Rod measurements for survey points included in the calculations are totaled and averaged, yielding an average rod reading. A line of sight is determined by adding the mean of the benchmark readings to an arbitrary elevation of the auxiliary benchmark (100.00 meters) and further adjusting by any change in elevational difference between the permanent and auxiliary benchmarks. The average rod reading subtracted from the line of sight provides an average bottom elevation. By subtracting the previous bottom elevation from the current value and multiplying by sediment basin area, the volume of accumulated sediment is determined. This volume divided by watershed area determines the yield of bedload per unit area of watershed.
Since a small difference in bottom elevation multiplied by sediment basin area results in a substantial value for accumulated material; and since adjustments for errors in rod readings and instrument level cannot be made, a difference in bottom elevation of plus or minus .01 meters is regarded as “no change”.
Example:
Average rod reading = sum of rod readings / number of points
Line of sight = Arbitrary elevation auxiliary benchmark + mean auxiliary benchmark reading+ correction value
Change in bottom elevation = line of sight – average rod reading
Accumulation = Change in bottom elevation * sediment basin area
Accumulation per unit area = accumulation / watershed area
WS 2 (149 ac., 60 ha), control, undisturbed; WS 1 (239 ac., 96 ha), 100% clearcut by Wyssen skyline system, fall, 1962 to summer,1966, debris burning Oct., 1966, planting; WS 3 (250 acres, 101 ha), 1.65 miles of roads constructed in 1959, high-lead logging winter 1962-63, three small clearcuts (13, 20, 28 ac), 25% of watershed, debris burning Sept., 1963; WS 9 (9 ha), control, undisturbed; WS 10 (10 ha), clearcut, no burning 1975. Sampling frequency: annual surveys
Long-term small watershed studies were established in treatment-control pairs to examine changes in bedload accumulation with respect to timber harvest and road building. Bedload accumulation is measured in a pre-treatment period, a post-road construction period (WS 3), and a post-harvesting period in 5 small watersheds. WS 2 is the control watershed paired with WS 1 (100% skyline harvesting) and WS 3 (patch-cut high-lead logging) as treatment watersheds. WS 3 has a preliminary road construction treatment 3 years before logging. WS 9 is the control watershed paired with WS 10 (100% clearcut) as the treatment watershed.
WS 1 - 96.8 ha, 100% clearcut by Wyssen skyline system from fall 1962 until summer 1966, debris burning Oct. 1966
WS 2 - 60.3 ha, undisturbed control paired with WS 1 and WS 3, no development
WS 3 - 101.2 ha, 1.65 miles of road constructed 1959, high-lead logging winter 1962-63, three small clearcuts (13, 20, 28 ac), 25% of watershed, debris burning Sep 1963.
WS 9 - 21.2 ha, undisturbed control is paired with WS 10. WS 9 is located just south of the mouth of Lookout Creek along the Blue River Reservoir.
WS 10 - 25.3 ha, 100% clearcut in 1975. Clearcutting occurred during the spring and summer of 1975, and a running skyline system yarded all logs and unmerchantable material >20 cm in diameter or >2.4 meters in length uphill to a single landing. A significant debris flow in Feb 1986 destroyed the gaging station.
Andrews Watershed 1 Gaging Station
-122.25802700
-122.25802700
44.20733900
44.20733900
439
439
meter
Andrews Watershed 2 Gaging Station
-122.24487600
-122.24487600
44.21201500
44.21201500
545
545
meter
Andrews Watershed 3 Gaging Station
-122.24300000
-122.24300000
44.21944000
44.21944000
471
471
meter
Andrews Watershed 9 Gaging Station
-122.25880100
-122.25880100
44.20119000
44.20119000
426
426
meter
Andrews Watershed 10 Gaging Station
-122.26105600
-122.26105600
44.21705700
44.21705700
461
461
meter
Andrews Watershed 1
-122.25683100
-122.23581300
44.20851700
44.19901700
1027
1027
meter
Andrews Watershed 2
-122.24397600
-122.22974100
44.21338500
44.20617800
1079
1079
meter
Andrews Watershed 3
-122.24194900
-122.22402200
44.21994300
44.20803100
1080
1080
meter
Andrews Watershed 9
-122.25781500
-122.25151500
44.20393300
44.20111000
731
731
meter
Andrews Watershed 10
-122.25996600
-122.25443900
44.22015200
44.21678600
679
679
meter
Andrews Experimental Forest (HJA)
-122.26172200
-122.10084700
44.28196400
44.19770400
1631
1631
meter
Long-Term Ecological Research
Sherri
L.
Johnson
US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way
Corvallis
OR
97331
USA
541-758-7771
sherri.johnson2@usda.gov
sherri.johnson@oregonstate.edu
https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
Principal Investigator
Julia
A.
Jones
Oregon State University;Department of Geosciences; Wilkinson Hall 104
Corvallis
OR
97331-5506
USA
(541) 737-1224
Julia.Jones@oregonstate.edu
geojulia@comcast.net
http://ceoas.oregonstate.edu/profile/jones/
http://orcid.org/0000-0001-9429-8925
Principal Investigator
Matthew
G
Betts
Department of Forest Ecosystems and Society; 201E Richardson Hall; College of Forestry; Oregon State University
Corvallis
OR
97331
(541) 737-3841
matt.betts@oregonstate.edu
http://www.fsl.orst.edu/flel/index.htm
Principal Investigator
Michael
P.
Nelson
Department of Forest Ecosystems and Society; 201K Richarson Hall; College of Forestry; Oregon State University
Corvallis
OR
97331
541-737-9221
mpnelson@oregonstate.edu
http://www.michaelpnelson.com
http://orcid.org/0000-0001-6917-4752
Principal Investigator
David
Bell
david.bell@usda.gov
david.bell@oregonstate.edu
https://lemma.forestry.oregonstate.edu/about/david-bell
Principal Investigator
The H.J. Andrews Experimental Forest is a living laboratory that provides unparalleled opportunities for the study of forest and stream ecosystems in the central Cascade Range of Oregon. Since 1980, as a part of the National Science Foundation Long Term Ecological Research (NSF-LTER) program, the Andrews Experimental Forest has become a leader in the analysis of forest and stream ecosystem dynamics.
Long-term field experiments and measurement programs have focused on climate dynamics, streamflow, water quality, and vegetation succession. Currently researchers are working to develop concepts and tools needed to predict effects of natural disturbance, land use, and climate change on ecosystem structure, function, and species composition.
The Andrews Experimental Forest is administered cooperatively by the USDA Forest Service Pacific Northwest Research Station, Oregon State University and the Willamette National Forest. Funding for the research program comes from the National Science Foundation (NSF), US Forest Service Pacific Northwest Research Station, Oregon State University, and other sources.
Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University. National Science Foundation: DEB1440409
The Andrews Forest is situated in the western Cascade Range of Oregon, and covers the entire 15,800-acre (6400-ha) drainage basin of Lookout Creek. Elevation ranges from 1350 to 5340 feet (410 to 1630 m). Broadly representative of the rugged mountainous landscape of the Pacific Northwest, the Andrews Forest contains excellent examples of the region's conifer forests and associated wildlife and stream ecosystems. These forests are among the tallest and most productive in the world, with tree heights of often greater than 250 ft (75 m). Streams are steep, cold and clean, providing habitat for numerous aquatic organisms.
1
HS00401
Annual sediment basin survey raw data: Raw survey data is primarily intended for internal use - please use entity 2 for annual accumulation summary
HS00401.csv
695629
348dcc58d5af9c77d0097f6bdd9676a1
1
\r\n
column
,
"
http://andlter.forestry.oregonstate.edu/ltermeta/ltersearch/dataaccess.aspx?docid=HS00401_v3.csv
1986-08-14
2018-07-31
DBCODE
FSDB Database Code
char(5)
HS004
FSDB database code HS004
ENTITY
Entity number
numeric(2,0)
number
1.000000
natural
1.0000
1.0000
SITECODE
Study site code
char(6)
GSWS01
Andrews Watershed 1 Gaging Station
GSWS02
Andrews Watershed 2 Gaging Station
GSWS03
Andrews Watershed 3 Gaging Station
GSWS09
Andrews Watershed 9 Gaging Station
GSWS10
Andrews Watershed 10 Gaging Station
DATE
Date of sediment basin survey
date
YYYY-MM-DD
8/14/1986 12:00:00 AM
7/31/2018 12:00:00 AM
STATUS
Survey status indicates whether the basin is full or empty at time of survey
char(1)
E
Empty basin - basin has been cleaned and is starting survey for new accumulation
F
Full basin - basin has accumulated deposits that will be compared against an earlier empty basin survey
INSTHT
Instrument height used to adjust rod height elevations
numeric(5,3)
meters
0.010000
real
0.1100
2.8500
DISTANCE
Distance along transect indicating the location of the rod height measurement
numeric(3,0)
feet
1.000000
whole
0.0000
102.0000
SUBSTRATE01
Substrate of surface on measurement line1 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT01
Rod height measurement on line1
numeric(4,2)
meters
0.010000
real
0.1100
3.3300
FLAG01
Rod height line1 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE02
Substrate of surface on measurement line2 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT02
Rod height measurement on line2
numeric(4,2)
meters
0.010000
real
0.7900
4.3300
FLAG02
Rod height line2 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE03
Substrate of surface on measurement line3 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT03
Rod height measurement on line3
numeric(4,2)
meters
0.010000
real
0.8000
3.9300
FLAG03
Rod height line3 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE04
Substrate of surface on measurement line4 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT04
Rod height measurement on line4
numeric(4,2)
meters
0.010000
real
0.6800
4.5500
FLAG04
Rod height line4 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE05
Substrate of surface on measurement line5 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT05
Rod height measurement on line5
numeric(4,2)
meters
0.010000
real
0.6200
4.5900
FLAG05
Rod height line5 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE06
Substrate of surface on measurement line6 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT06
Rod height measurement on line6
numeric(4,2)
meters
0.010000
real
0.4700
4.5700
FLAG06
Rod height line6 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE07
Substrate of surface on measurement line7 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT07
Rod height measurement on line7
numeric(4,2)
meters
0.010000
real
0.1000
4.4900
FLAG07
Rod height line7 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE08
Substrate of surface on measurement line8 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT08
Rod height measurement on line8
numeric(4,2)
meters
0.010000
real
0.1100
4.4200
FLAG08
Rod height line8 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE09
Substrate of surface on measurement line9 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT09
Rod height measurement on line9
numeric(4,2)
meters
0.010000
real
0.2200
4.4100
FLAG09
Rod height line9 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE10
Substrate of surface on measurement line10 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT10
Rod height measurement on line10
numeric(4,2)
meters
0.010000
real
0.0100
4.3500
FLAG10
Rod height line10 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE11
Substrate of surface on measurement line11 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT11
Rod height measurement on line11
numeric(4,2)
meters
0.010000
real
0.0300
4.4400
FLAG11
Rod height line11 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE12
Substrate of surface on measurement line12 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT12
Rod height measurement on line12
numeric(4,2)
meters
0.010000
real
0.0200
4.7700
FLAG12
Rod height line12 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE13
Substrate of surface on measurement line13 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT13
Rod height measurement on line13
numeric(4,2)
meters
0.010000
real
0.0300
5.0700
FLAG13
Rod height line13 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE14
Substrate of surface on measurement line14 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT14
Rod height measurement on line14
numeric(4,2)
meters
0.010000
real
0.0200
5.4100
FLAG14
Rod height line14 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE15
Substrate of surface on measurement line15 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT15
Rod height measurement on line15
numeric(4,2)
meters
0.010000
real
0.0400
5.6100
FLAG15
Rod height line15 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE16
Substrate of surface on measurement line16 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT16
Rod height measurement on line16
numeric(4,2)
meters
0.010000
real
0.5000
5.6800
FLAG16
Rod height line16 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE17
Substrate of surface on measurement line17 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT17
Rod height measurement on line17
numeric(4,2)
meters
0.010000
real
0.6700
5.6800
FLAG17
Rod height line17 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE18
Substrate of surface on measurement line18 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT18
Rod height measurement on line18
numeric(4,2)
meters
0.010000
real
0.5100
5.6300
FLAG18
Rod height line18 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE19
Substrate of surface on measurement line19 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT19
Rod height measurement on line19
numeric(4,2)
meters
0.010000
real
1.9000
5.5300
FLAG19
Rod height line19 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE20
Substrate of surface on measurement line20 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT20
Rod height measurement on line20
numeric(4,2)
meters
0.010000
real
2.0000
5.3700
FLAG20
Rod height line20 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE21
Substrate of surface on measurement line21 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT21
Rod height measurement on line21
numeric(4,2)
meters
0.010000
real
2.0100
5.1200
FLAG21
Rod height line21 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE22
Substrate of surface on measurement line22 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT22
Rod height measurement on line22
numeric(4,2)
meters
0.010000
real
1.9400
4.7800
FLAG22
Rod height line22 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE23
Substrate of surface on measurement line23 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT23
Rod height measurement on line23
numeric(4,2)
meters
0.010000
real
1.8800
4.3800
FLAG23
Rod height line23 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE24
Substrate of surface on measurement line24 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT24
Rod height measurement on line24
numeric(4,2)
meters
0.010000
real
1.9000
3.9300
FLAG24
Rod height line24 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE25
Substrate of surface on measurement line25 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT25
Rod height measurement on line25
numeric(4,2)
meters
0.010000
real
1.3100
3.9000
FLAG25
Rod height line25 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
SUBSTRATE26
Substrate of surface on measurement line26 used to indicate appropriateness of the point for cross-year comparison
char(2)
TD
Top of dam
S
Slope
B
Basin
BL
Boulder
OD
Organic debris
D
Delta (deposit in basin)
FL
Flume or concrete spillway
OB
Out of basin
BI
Basin island
G
Gravel
ST
Stream
P
Peninsula
N
Not surveyed
FS
Fine sediment
BR
Bedrock (early use only)
R
Rock (early use only)
RD
Road (early use only)
RP
Ramp (WS1, early use only)
CS
Cement slope (WS9 only)
OM
Organic matter (early use only)
DM
Dam (early use only)
CB
Cement bottom (WS9 only)
TW
Top of wall (early use only)
BG
Bridge
BN
Bank (WS#3 after 1996 only)
DV
Diversion structure (WS#3 only)
C
Channel (WS3 early use only)
CR
Channel - unknown code (WS3 early use only)
RODHT26
Rod height measurement on line26
numeric(4,2)
meters
0.010000
real
1.2800
4.0200
FLAG26
Rod height line26 measurement flag indicates whether point is used in calculation of annual accumulation
char(1)
O
Point is used in cross-year calculation
X
Point is not used in cross-year calculation
N
Point is not surveyed
PRIMARY
HS00401.SITECODE
HS00401.DATE
HS00401.DISTANCE
NOTNULL
HS00401.ENTITY
HS00401.SITECODE
HS00401.DATE
HS00401.STATUS
HS00401.INSTHT
HS00401.DISTANCE
HS00401.SUBSTRATE01
HS00401.FLAG01
HS00401.SUBSTRATE02
HS00401.FLAG02
HS00401.SUBSTRATE03
HS00401.FLAG03
HS00401.SUBSTRATE04
HS00401.FLAG04
HS00401.SUBSTRATE05
HS00401.FLAG05
HS00401.SUBSTRATE06
HS00401.FLAG06
HS00401.SUBSTRATE07
HS00401.FLAG07
HS00401.SUBSTRATE08
HS00401.FLAG08
HS00401.SUBSTRATE09
HS00401.FLAG09
HS00401.SUBSTRATE10
HS00401.FLAG10
HS00401.SUBSTRATE11
HS00401.FLAG11
HS00401.SUBSTRATE12
HS00401.FLAG12
HS00401.SUBSTRATE13
HS00401.FLAG13
HS00401.SUBSTRATE14
HS00401.FLAG14
HS00401.SUBSTRATE15
HS00401.FLAG15
HS00401.SUBSTRATE16
HS00401.FLAG16
HS00401.SUBSTRATE17
HS00401.FLAG17
HS00401.SUBSTRATE18
HS00401.FLAG18
HS00401.SUBSTRATE19
HS00401.FLAG19
HS00401.SUBSTRATE20
HS00401.FLAG20
HS00401.SUBSTRATE21
HS00401.FLAG21
HS00401.SUBSTRATE22
HS00401.FLAG22
HS00401.SUBSTRATE23
HS00401.FLAG23
HS00401.SUBSTRATE24
HS00401.FLAG24
HS00401.SUBSTRATE25
HS00401.FLAG25
HS00401.SUBSTRATE26
HS00401.FLAG26
3114
2
HS00402
Annual bedload accumulation: Annual sediment basin surveys are used to quantify volume and rate of bedload accumulation
HS00402.csv
17442
76d872ec80db97b0ffc0f47d51aefc9b
1
\r\n
column
,
"
http://andlter.forestry.oregonstate.edu/ltermeta/ltersearch/dataaccess.aspx?docid=HS00402_v4.csv
1956-10-01
2018-09-30
DBCODE
FSDB Database Code
char(5)
HS004
FSDB database code HS004
ENTITY
Entity number
numeric(2,0)
number
1.000000
natural
2.0000
2.0000
SITECODE
Study site code
char(6)
GSWS01
Andrews Watershed 1 Gaging Station
GSWS02
Andrews Watershed 2 Gaging Station
GSWS03
Andrews Watershed 3 Gaging Station
GSWS09
Andrews Watershed 9 Gaging Station
GSWS10
Andrews Watershed 10 Gaging Station
WATERYEAR
Wateryear (Oct 1-Sep 30) representing the given bedload volume and accumulation rates
numeric(4,0)
year (yyyy)
1.000000
natural
1957.0000
2018.0000
METHOD
Survey method
char(1)
S
Standard survey
B
Bucket count survey
N
No survey
C
Calculation of debris flow accumulation using alternative survey methods
T
Two surveys used - an additional mid-winter survey was conducted after the basin filled and had to be cleaned out
WATERSHED_AREA
Area of watershed contributing to bedload accumulation
numeric(6,2)
hectares
0.100000
real
8.5400
101.1000
VOLUME
Volume of bedload in sediment basin as calculated by the survey
numeric(8,2)
cubic meters
0.010000
real
0.0000
20746.0000
ACCUM_RATE
Annual bedload accumulation rate
numeric(7,3)
cubic meters per hectare
0.010000
real
0.0000
205.2200
ACCUM_CODE
Accumulation rate code
char(1)
A
Accepted value
M
Bedload accumulation rate is missing for current year
D
Bedload accumulation rate for current year is based on a measured debris flow deposit
Q
Bedload accumulation rate for current year is questionable
*
Bedload accumulation rate is below the survey detection limit
E
Bedload accumulation rate is estimated
NOTES
Specific notes regarding the survey or bedload calculation
char(254)
Specific notes regarding the survey or bedload calculation
PRIMARY
HS00402.WATERYEAR
HS00402.SITECODE
NOTNULL
HS00402.DBCODE
HS00402.ENTITY
HS00402.WATERYEAR
HS00402.ACCUM_CODE
HS00402.SITECODE
HS00402.METHOD
HS00402.WATERSHED_AREA
271
feet; 12 inches
meter; SI unit of length
dimensionless number, i.e., ratio, count
year (4 character) portion of date
cubic meters per hectare
hectares; 1 hectare is 10^4 square meters
cubic meters