uid=AND,o=lter,dc=ecoinformatics,dc=org all public read HF028 Catalina Segura

Assistant Professor; Department of Forest Engineering, Resources, and Management; Oregon State University Corvallis OR 97331

541-737-6568 catalina.segura@oregonstate.edu http://ferm.forestry.oregonstate.edu/facstaff/segura-catalina 0000-0002-0924-1172 Zachary Perry zachary.perry@oregonstate.edu 0000-0001-8258-3980 Jaimie Ortega jaime.ortega@oregonstate.edu 0009-0006-7178-043X Catalina Segura

Assistant Professor; Department of Forest Engineering, Resources, and Management; Oregon State University Corvallis OR 97331

541-737-6568 catalina.segura@oregonstate.edu http://ferm.forestry.oregonstate.edu/facstaff/segura-catalina 0000-0002-0924-1172 Principal Investigator Zachary Perry zachary.perry@oregonstate.edu 0000-0001-8258-3980 Other Researcher Jaimie Ortega jaime.ortega@oregonstate.edu 0009-0006-7178-043X Other Researcher David Noone

The University of Auckland

david.noone@auckland.ac.nz https://unidirectory.auckland.ac.nz/profile/david-noone 0000-0002-8642-7843 Other Researcher 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/ 0000-0001-9429-8925 Other Researcher Dana Richard Warren

Nash Hall, Oregon State University Corvallis OR 97330 USA

541-737-5319 dana.warren@oregonstate.edu http://people.forestry.oregonstate.edu/dana-warren/home-page 0000-0001-5282-7972 Other Researcher J. Renée Brooks

Western Ecology Division;U.S. EPA/NHEERL;200 SW 35th St.; Corvallis OR 97333 USA

(541) 754-4684 J.Renee.Brooks@oregonstate.edu 0000-0002-5008-9774 Other Researcher Catalina Segura

Assistant Professor; Department of Forest Engineering, Resources, and Management; Oregon State University Corvallis OR 97331

541-737-6568 catalina.segura@oregonstate.edu http://ferm.forestry.oregonstate.edu/facstaff/segura-catalina 0000-0002-0924-1172 Creator Zachary Perry zachary.perry@oregonstate.edu 0000-0001-8258-3980 Creator Jaimie Ortega jaime.ortega@oregonstate.edu 0009-0006-7178-043X Creator Pamela L. Sullivan Pamela.Sullivan@oregonstate.edu https://ceoas.oregonstate.edu/profile/sullivan/ 0000-0001-8780-8501 Other Researcher 2025-10-02 Water samples have been collected for analysis of water stable isotopes (O18/16 and H2/H1) at different locations in the HJ Andrews Experimental Forest and over different periods since 2014 in the HJ Andrews Experimental Forest. The database includes: 1) grab samples collected over the stream network of the Andrews Forest on multiple sampling campaigns during various flow conditions. In each of the campaigns, the samples were collected at approximately 50–100-meter intervals in 1st–5th order streams across the network; 2) water samples collected in the Andrews Forest every 1–3 weeks between 2014 and 2018 in streams (Lookout Creek, Mack Creek, McRae Creek, WS01, WS02, WS07, and WS08) and bulk precipitation from benchmark meteorological stations (PRIMET, MACK, and H15MET) between 2014 and 2023; 3) stream and precipitation samples collected in the Andrews Forest at high temporal resolution during discrete storm events at Mack Creek in 2015; and 4) weekly grab samples from Lookout Creek and selected tributaries. droughts tracers disturbance streamflow stable isotopes streams LTER controlled vocabulary water samples Andrews Experimental Forest site thesaurus disturbance LTER core research areas College of Forestry Undergraduate Mentored Employment Program National Science Foundation under Grant Numbers: DEB-1440409, AGS-0955841, DEB-1547628, DEB-1943574.Related PublicationsMosquera, Giovanny M.; Segura, Catalina; Crespo, Patricio. 2018. Flow Partitioning Modelling Using High-Resolution Isotopic and Electrical Conductivity Data. Water. 10(7),904: 1-23. doi: 10.3390/w10070904Segura, Catalina; Noone, David; Warren, Dana; Jones, Julia A.; Tenny, Johnathan; Ganio, Lisa M. 2019. Climate, Landforms, and Geology Affect Baseflow Sources in a Mountain Catchment. Water Resources Research. 55(7): 5238-5254. doi: 10.1029/2018WR023551Segura, Catalina. 2021. Snow drought reduces water transit times in headwater streams. Hydrological Processes. 35. 17 pp. doi: 10.1002/hyp.14437Ortega, Jaime; Segura, Catalina; Brooks, J. Renée; Sullivan, Pamela L. 2025. Insights Into Heterogeneous Streamflow Generation Processes and Water Contribution in Forested Headwaters. Hydrological Processes. 39(8): e70241. doi: 10.1002/hyp.70241Ortega, Jaime; Bush, Sidney A.; Segura, Catalina; Sullivan, Pamela L. 2025. Subsurface Storage Drives Hydrologic Connectivity and Spatial Variability in Stream Chemistry. Hydrological Processes. 39(8): e70228. doi: 10.1002/hyp.70228 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. Creative Commons Attribution 4.0 International Public License https://creativecommons.org/licenses/by/4.0/ CC-BY-4.0 https://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=HF028 Hydrologic systems in the Andrews Forest -122.26172200 -122.10084700 44.28196400 44.19770400 1631 412 meter 2014-11-11 2023-05-28 The objective of this data is to characterize the isotopic signature of water in the Andrews Forest ro investigate and model rainfall-runoff generation process at different temporal and spatial scales.

An update history is logged and maintained with each new version of every dataset.

asNeeded Study code and preliminary metadata established Version1 2017-05-19 Re-purposed this study code for another study. Previous assignment was a duplicate. Version2 2018-12-20 Created 4 new entities, QC and uploaded data. Version3 2019-04-30 New dataset (replacement) for entity 2, including new data for 2017 and 2018. Version4 2022-07-18 Replacement files for entities 1 and 2. Entity 4 was moved to new database (HF032). New data file entered as new entity 4. Version5 2024-09-30 Replacement dataset for entity 1, includes data from 2015-2023; some trib_name modifications and additions Version6 2025-10-02 Information Manager

Andrews Forest LTER Program US Forest Service Pacific Northwest Research Station 3200 SW Jefferson Way Corvallis OR 97331

hjaweb@lists.oregonstate.edu http://andrewsforest.oregonstate.edu/ Catalina Segura

Assistant Professor; Department of Forest Engineering, Resources, and Management; Oregon State University Corvallis OR 97331

541-737-6568 catalina.segura@oregonstate.edu http://ferm.forestry.oregonstate.edu/facstaff/segura-catalina 0000-0002-0924-1172 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@lists.oregonstate.edu http://andrewsforest.oregonstate.edu/ Field Methods - HF028 Synoptic grab water samples were collected during multiple campaigns: July-September 2015, June 2016, September 2016, August 2021, and May-November 2022 including locations over a wide range of streams spanning 1st to 5th orders. Locations were at ~50- 100-meter intervals recorded using Gain 30x GPS unit. Stream samples were collected every 3 weeks between 2014 and 2018 at Lookout, Mack and McRae Creeks and at WS01, WS02, WS07, and WS08. Bulk precipitation was collected every week (PRIMET) and every 3 weeks (H15MET) over the same period, and sampling at PRIMET continued to 2023. Forty-four, streamflow grab samples were collected at Mack Creek every 4 hours using an automatic autosampler (ISCO-3700). Precipitation was sequentially sampled at the PRIMET benchmark station using a sequential rainfall sampler designed to collect up to 12, 200-mL water samples to characterize the temporal variability of water stable isotopes. The weekly grab samples collected in Lookout Creek and selected tributaries were collected at 10 sites between May 2022-April 2023. Some sites were added mid-study, so some data was collected over a shorter time frame. An attempt was made to sample each location every week, but some samples may be absent due to field conditions. All water samples for isotopic analysis were collected and stored in 20-mL glass bottles with conical inserts without headspace and kept in dark at relatively cool conditions (less than 15°C) to avoid fractionation by evaporation until their analysis was conducted at the Watershed Processes Laboratory at Oregon State University. Laboratory Methods - HF028 The water stable isotope ratios were analyzed in the watershed processes laboratory in the College of Forestry (Oregon State University) using a cavity ring down spectroscopy liquid and vapor isotopic measurement analyzer (Picarro L2130-i, Picarro Inc, CA). Two internal standards were used to develop calibration equations, and a third standard was used to assess external accuracy. All the standards were calibrated against the IAEA primary standards for Vienna Standard Mean Ocean Water, Standard Light Antarctic Precipitation (SLAP), and Greenland Ice Sheet Precipitation. Sampling frequency: Variable from hourly to sub monthly The 2015-2016 synoptic water stable isotope values were collected to compare summer baseflow water sources between 2 years with contrasting hydrologic conditions: 2015 was a year that lacked snowpack and had very low flow conditions and 2016 that had average incoming precipitation. The samples were collected roughly in the same stream network over 3 sampling campaigns in the 2nd to 5th order steams of Lookout, Mack, McRae, and Cold Creeks. The synoptic water stable isotope values (2021, 2022) were collected to compare Summer baseflow water sources to water sources during wet months in the Fall and Spring. Sampling during these campaigns spanned smaller headwater streams to elucidate the influence of physiographic metrics on the spatial distribution of isotope data. Samples collected every 3 weeks at selected locations targeted streams draining a broad range of drainage areas over contrasting geologic and geomorphologic conditions. Precipitation samples collected at three locations provide information about the water inputs to the Andrews Forest. High frequency storm samples were collected at Mack Creek in order to investigate the performance of a flow partitioning tracer-based hydrological model calibrated using water stable isotopes and electrical conductivity. The weekly stream samples (May 2022- May 2023) were collected from multiple locations along the main tributaries and selected headwater streams of the Lookout Creek watershed to investigate the spatiotemporal streamflow contributions of those selected watersheds, which have different basin sizes (drainage area) and elevations gradients. Andrews Experimental Forest (HJA) -122.26172200 -122.10084700 44.28196400 44.19770400 1631 1631 meter Mack Creek -122.16826200 -122.14698900 44.22714600 44.20991900 Cold Creek -122.12735800 -122.11082800 44.23442340 44.22821100 1341 1341 meter McRae Creek -122.20859020 -122.13943300 44.27311600 44.23328700 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 7 -122.17920900 -122.17387500 44.26974800 44.26457900 1102 1102 meter Andrews Watershed 8 -122.17079300 -122.17079300 44.26629400 44.26588100 1182 1182 meter Primary Meteorological Station -122.25594100 -122.25594100 44.21189300 44.21189300 436 436 meter High 15 Meteorological Station -122.17378247 -122.17378247 44.26425069 44.26425069 909 909 meter Andrews Lookout Creek Watershed -122.25879300 -122.09952700 44.28226000 44.20127400 1627 1627 meter Andrews Mack Creek Watershed -122.17282200 -122.12699600 44.22054300 44.20148000 1626 1626 meter Andrews Lookout Creek Gaging Station -122.25714600 -122.25714600 44.21012600 44.21012600 422 422 meter Andrews Mack Creek Gaging Station -122.16744700 -122.16744700 44.21943621 44.21943621 755 755 meter Primary Met Station NADP Recording RG -122.25578500 -122.25578500 44.21192400 44.21192400 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 7 Gaging Station -122.17526500 -122.17526500 44.26463700 44.26463700 918 918 meter Andrews Watershed 8 Gaging Station -122.17079300 -122.17079300 44.26629426 44.26629426 962 962 meter Cold Creek Synoptic Sample Sites -122.12722540 -122.12722540 44.22839295 44.22839295 Longer Creek Synoptic Sample Sites -122.14777973 -122.14777973 44.23358683 44.23358683 Lower Lookout Creek Synoptic Sample Sites -122.26135510 -122.26135510 44.20534312 44.20534312 Mack Creek Synoptic Sample Sites -122.14793260 -122.14793260 44.20991928 44.20991928 McRae Creek Synoptic Sample Sites -122.20859010 -122.20859010 44.23328661 44.23328661 Nostoc Creeek Synoptic Sample Sites -122.17414702 -122.17414702 44.23114312 44.23114312 Shorter Creek Synoptic Sample Sites -122.15672020 -122.15672020 44.23442799 44.23442799 Tributary No Name Synoptic Sample Sites -122.11608070 -122.11608070 44.21856011 44.21856011 Upper Lookout Creek Synoptic Sample Sites -122.11665550 -122.11665550 44.20786171 44.20786171 McRae Creek Tributary West 2 Synoptic Sample Sites -122.16604530 -122.16604530 44.25908852 44.25908852 Stream 2 Synoptic Sample Sites -122.18352750 -122.18352750 44.24957252 44.24957252 Stream 5 Synoptic Sample Sites -123.40969610 -123.40969610 44.05440425 44.05440425 Torrent Creek Synoptic Sample Sites -122.12874290 -122.12874290 44.22909088 44.22909088 Watershed 6S Synoptic Sample Sites -122.17936990 -122.17936990 44.25941911 44.25941911 Watershed 7S Synoptic Sample Sites -122.17409970 -122.17409970 44.26272126 44.26272126 Watershed 8S Synoptic Sample Sites -122.17390890 -122.17390890 44.26292695 44.26292695 McRae Creek Tributary West Synoptic Sample Sites -122.18339958 -122.18339958 44.24886036 44.24886036 Posy Elizabeth Busby

Assistant Professor OSU Botany & Plant Pathology

busbyp@science.oregonstate.edu posybusby@gmail.com http://bpp.oregonstate.edu/content/posy-busby 0000-0002-2837-9820 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 0000-0002-7100-2551 Principal Investigator Brooke E. Penaluna brooke.penaluna@usda.gov Brooke.Penaluna@oregonstate.edu https://www.fs.fed.us/pnw/lwm/aem/people/penaluna.html 0000-0001-7215-770X Principal Investigator Catalina Segura

Assistant Professor; Department of Forest Engineering, Resources, and Management; Oregon State University Corvallis OR 97331

541-737-6568 catalina.segura@oregonstate.edu http://ferm.forestry.oregonstate.edu/facstaff/segura-catalina 0000-0002-0924-1172 Principal Investigator David M. Bell david.bell@usda.gov david.bell@oregonstate.edu https://lemma.forestry.oregonstate.edu/about/david-bell 0000-0002-2673-5836 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: DEB2025755 National Science Foundation https://ror.org/021nxhr62 DEB2025755 https://www.nsf.gov/awardsearch/showAward?AWD_ID=2025755 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. HF02801 Water isotopic ratios (O18/O16, H2/H1) of synoptic sampling in streams at HJA Includes data for 1845 grab samples collected during 8 sampling campaigns between 2015 and 2023. HF02801_v3.csv 151126 94e1997865e6133144051b6de9be0397 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=HF02801_v3.csv 2015-07-01 2023-05-28 DBCODE FSDB Database Code char(5) HF028 FSDB Database Code HF028 ENTITY Entity number numeric(2,0) number 1 natural 1.0000 1.0000 TRIB_NAME Stream name of sample location char(30) GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station Cold Creek Cold Creek Synoptic Sample Sites Longer Creek Longer Creek Synoptic Sample Sites Lower Lookout Lower Lookout Creek Synoptic Sample Sites Mack Creek Mack Creek Synoptic Sample Sites McRae Creek McRae Creek Synoptic Sample Sites Nostoc Creek Nostoc Creeek Synoptic Sample Sites Shorter Creek Shorter Creek Synoptic Sample Sites Tributary No Name Tributary No Name Synoptic Sample Sites Upper Lookout Upper Lookout Creek Synoptic Sample Sites McRae Creek west tributary McRae Creek Tributary West Synoptic Sample Sites McRae Creek west tributary 2 McRae Creek Tributary West 2 Synoptic Sample Sites Stream 2 Stream 2 Synoptic Sample Sites Stream 5 Stream 5 Synoptic Sample Sites Torrent Creek Torrent Creek Synoptic Sample Sites Watershed 6S Watershed 6S Synoptic Sample Sites Watershed 7S Watershed 7S Synoptic Sample Sites Watershed 8S Watershed 8S Synoptic Sample Sites SAMPLE_ID Site code for the sampling location char(10) Site code for the sampling location SAMPLE_DATE Date of sample collection datetime YYYY-MM-DD 7/1/2015 12:00:00 AM 5/28/2023 12:00:00 AM DEL18O Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.210000 real -11.7830 -10.2210 DEL2H Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.060000 real -80.7690 -70.2860 UTM_N Latitude North (datum: NAD_1983_UTM_Zone_10N) numeric(10,2) meters 1 real 4894945.5000 4902568.0200 UTM_E Longitude East (datum: NAD_1983_UTM_Zone_10N) numeric(9,2) meters 1 real 559015.6200 570920.8800 PRIMARY HF02801.SAMPLE_DATE HF02801.SAMPLE_ID NOTNULL HF02801.DBCODE HF02801.DEL18O HF02801.DEL2H HF02801.ENTITY HF02801.SAMPLE_DATE HF02801.SAMPLE_ID HF02801.TRIB_NAME HF02801.UTM_E HF02801.UTM_N 1845 HF02802 Water isotopic ratios (O18/O16, H2/H1) from stream and precipitation at some streams and benchmark meteorological stations at HJA Includes grab stream samples collected submonthly at Lookout Creek, Mack Creek, McRae Creek, WS01, WS02, WS07, and WS08 and bulk precipitation samples collected at PRIMET, MACK and H15MET HF02802_v3.csv 48559 263d193b085b1608effcbbfc5da2a816 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=HF02802_v3.csv 2014-11-11 2020-12-29 DBCODE FSDB Database Code char(5) HF028 FSDB Database Code HF028 ENTITY Entity number numeric(2,0) number 1 natural 2.0000 2.0000 SITECODE Site code for the sampling location char(8) MCRAE McRae Creek GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station H15MET High 15 Meteorological Station PRIMET Primary Met Station NADP Recording RG TYPE Type of sample collected char(4) GB Grab sample of surface water PREC Bulk Precipitation SAMPLE_DATE Date of sample collection datetime YYYY-MM-DD 11/4/2014 12:00:00 AM 5/16/2023 12:00:00 AM DEL18O Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.210000 real -19.3340 3.6900 DEL2H Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.060000 real -145.2750 -1.9050 PRIMARY HF02802.SAMPLE_DATE HF02802.SITECODE HF02802.TYPE NOTNULL HF02802.DBCODE HF02802.DEL18O HF02802.DEL2H HF02802.ENTITY HF02802.SAMPLE_DATE HF02802.SITECODE HF02802.TYPE 1000 HF02803 High Resolution Water isotopic ratios of stream and precipitation at Mack Creek during discrete storm events Includes high resolution (every 4 hours) stream water samples collected at Mack Creek and sequential precipitation samples collected at PRIMET during a storm event in November 2015. HF02803_v1.csv 3111 858cf8e979f78f76be51da427bee0cbb 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=HF02803_v1.csv 2001-05-14 2015-11-30 DBCODE FSDB Database Code char(5) HF028 FSDB Database Code HF028 ENTITY Entity number numeric(2,0) number 1 natural 3.0000 3.0000 SITECODE Site code for the sampling location char(8) MCRAE McRae Creek GSWS01 Andrews Watershed 1 Gaging Station GSWS02 Andrews Watershed 2 Gaging Station GSWS07 Andrews Watershed 7 Gaging Station GSWS08 Andrews Watershed 8 Gaging Station GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station H15MET High 15 Meteorological Station PRIMET Primary Met Station NADP Recording RG TYPE Type of sample collected char(4) GB Grab sample of surface water PREC Bulk Precipitation DATETIME Date and time of sample collection (PST) datetime YYYY-MM-DD hh:mm:ss 10/27/2015 12:00:00 PM 11/7/2015 10:00:00 AM DEL18O Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.210000 real -10.9200 -3.4920 DEL2H Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.060000 real -74.5570 -9.9920 PRIMARY HF02803.DATETIME HF02803.SITECODE HF02803.TYPE NOTNULL HF02803.DATETIME HF02803.DBCODE HF02803.DEL18O HF02803.DEL2H HF02803.ENTITY HF02803.SITECODE HF02803.TYPE 54 HF02804 Water isotopic ratios (O18/O16, H2/H1) from weekly grab samples collected in Lookout Creek and selected tributaries Includes data from 5 sites collected weekly starting in May 2022 HF02804_v1.csv 14767 f1492976212cfeaae66172b61fd4323a 1 \r\n column , " https://andlter.forestry.oregonstate.edu/data/register/dataaccess.aspx?docid=HF02804_v1.csv 2022-05-06 2023-05-04 DBCODE FSDB Database Code char(5) HF028 FSDB Database Code HF028 ENTITY Entity number numeric(2,0) number 1 natural 4.0000 4.0000 STREAM_NAME Stream name of sample location char(30) McRae Creek McRae Creek GSMACK Andrews Mack Creek Gaging Station GSLOOK Andrews Lookout Creek Gaging Station Nostoc Creek Nostoc Creek Longer Creek Longer Creek Cold Creek Cold Creek Upper Lookout Upper Lookout Creek COLLECTION_PT Collection point for the sampling location char(3) CC HF028 stream grab sample collection point at Cold Creek LO2 HF028 stream grab sample collection point 2 at Upper Lookout LO1 HF028 stream grab sample collection point 1 at Upper Lookout MR HF028 stream grab sample collection point at McRae Creek LO5 HF028 stream grab sample collection point 5 at Upper Lookout MC HF028 stream grab sample collection point at Mack Creek LC HF028 stream grab sample collection point at Longer Creek NC HF028 stream grab sample collection point at Nostoc Creek LO3 HF028 stream grab sample collection point 3 at Upper Lookout LO4 HF028 stream grab sample collection point 4 at Upper Lookout SAMPLE_DATE Date of sample collection datetime YYYY-MM-DD 5/6/2022 12:00:00 AM 5/4/2023 12:00:00 AM DEL18O Oxygen-18 (O18/O16) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.210000 real -11.7580 -10.0250 DEL2H Deuterium (H2/H1) as compared to the Vienna Standard Mean Ocean Water (VSMOW) numeric(7,3) permil 0.060000 real -80.6700 67.2830 PRIMARY HF02804.COLLECTION_PT HF02804.SAMPLE_DATE HF02804.STREAM_NAME NOTNULL HF02804.DBCODE HF02804.ENTITY HF02804.COLLECTION_PT HF02804.SAMPLE_DATE HF02804.STREAM_NAME 277 meter; SI unit of length parts per thousand, relative to a standard. for isotopes. Isotope data uses LC-delta=(Rx/Rs-1)*1000 dimensionless number, i.e., ratio, count