Gregory, S.; Johnson, S. 1000. Stream and air temperature data from stream gages and stream confluences in the Andrews Experimental Forest, 1950 to present Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/HT004 Accessed 2026-05-10.

Stream and air temperature are measured in tandem at stream gauging stations and other selected locations and stream confluences within the Andrews Forest. Air temperature is generally measured over the stream or alongside. Currently, mean, max and min water and air temperature data are collected every 5 minutes at the gauging stations and instantaneous temperatures every 15 minutes at all other sites. Most measurements were collected hourly commencing in the later 1990s, but a few sites have daily data beginning in the late 1970s. Historic data collected 1949 to 1981 at Lookout Creek stream gauge are included with the daily summary data. Other Andrews Forest related databases: Long term air temperature data from the reference and benchmark climate stations are also available in MS001. Previous high resolution stream temperature data at some of the small watershed stream gages are available in HT001 and stream temperature data throughout the Andrews Forest stream networks during several years are available in HT002.

Temporal coverage: 1000-01-01 to 1000-01-01

Geographic coverage: Oregon: western Cascades - HJ Andrews Experimental Forest Gauging Stations at WS1, 2, 3, 6, 7, 8, 10, Mack Creek, and Lookout Creek. Stream thermograph sites on upper Lookout, upper McRae, Mack/Lookout confluence, and legacy sites Mack old-growth, McRae/Lookout confluence, Quartz Creek (Blue River tributary), and Grasshopper Creek (S. Fork McKenzie).

Spatial coverage:

Bounds: W -122.30199700, E -122.12162890, N 44.26629426, S 44.19831900

• Stream temperature is a critical parameter in stream ecosystems and controls rates of multiple processes, such as metabolism, growth, decomposition, and solubility of gases, as well as biotic interactions. Measuring stream temperature at stream gages allows examination of long term responses to forest dynamics and forest harvest. These stream and air temperature data also are relevant to research on nutrient dynamics, stream flow, invertebrate and vertebrate responses to microclimate conditions.

Title: Long-Term Ecological Research

• Craig Creel
  Role: Former Investigator
  USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
  Phone: (541) 750-7326, (541) 822-6301
  Email: cdcreel@comcast.net
• Christopher Daly
  Role: Other Researcher
  PRISM Group;Northwest Alliance for Computational Science and Engineering, 2000 Kelley Engineering Center;Oregon State University, Corvallis, OR, 97331, USA
  Phone: (541) 737-2531
  Email: daly@nacse.org
  URL: http://prism.oregonstate.edu
• Greg Downing
  Role: Method Contact
  Forestry Sciences Lab;3200 SW Jefferson Way, Corvallis, OR, 97333, USA
  Phone: (541) 750-7283, (541) 822-6301
  Email: gregdowning242@gmail.com, greg.downing@oregonstate.edu
• Stanley V. Gregory
  Role: Former Investigator
  Oregon State University;Dept. of Fisheries and Wildlife;Nash Hall 104, Corvallis, OR, 97331, USA
  Phone: (541) 737-1951
  Email: stanley.gregory@oregonstate.edu
  URL: http://oregonstate.edu/dept/pnw-erc/personnel/gregory.htm
• Stanley V. Gregory
  Role: Creator
  Oregon State University;Dept. of Fisheries and Wildlife;Nash Hall 104, Corvallis, OR, 97331, USA
  Phone: (541) 737-1951
  Email: stanley.gregory@oregonstate.edu
  URL: http://oregonstate.edu/dept/pnw-erc/personnel/gregory.htm
• Donald L. Henshaw
  Role: Abstractor
  Pacific Northwest Research Station; Corvallis Forestry Sciences Lab; 3200 SW Jefferson Way, Corvallis, Oregon, 97331
  Email: hja_admin@lists.oregonstate.edu
• Sherri L. Johnson
  Role: Principal Investigator
  US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
  Phone: 541-758-7771
  Email: sherri.johnson@oregonstate.edu
  URL: https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
• Sherri L. Johnson
  Role: Abstractor
  US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
  Phone: 541-758-7771
  Email: sherri.johnson@oregonstate.edu
  URL: https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
• Sherri L. Johnson
  Role: Creator
  US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
  Phone: 541-758-7771
  Email: sherri.johnson@oregonstate.edu
  URL: https://www.fs.fed.us/research/people/profile.php?alias=sherrijohnson
• John Moreau
  Role: Former Investigator
  Blue River, OR, 97413, USA
  Email: john.b.moreau@icloud.com
• Randall C. Wildman
  Role: Former Investigator
  Oregon State University;Dept. of Fish and Wildlife, Corvallis, OR, 97331, USA
  Email: randallcwildman@gmail.com, wildmanr@retiree.oregonstate.edu
• Adam M Kennedy
  Role: Other Researcher
  OR, US
  Phone: 541-822-6302
  Email: adam.kennedy@oregonstate.edu
  URL: https://directory.forestry.oregonstate.edu/people/kennedy-adam
• Greg M Cohn
  Role: Other Researcher
  USFS Rd 15-130-132, Blue River, OR, 97413
  Phone: 541-822-6305
  Email: cohng@oregonstate.edu
• Greg M Cohn
  Role: Method Contact
  USFS Rd 15-130-132, Blue River, OR, 97413
  Phone: 541-822-6305
  Email: cohng@oregonstate.edu
• Stephanie A Schmidt
  Role: Other Researcher
  USDA Forest Service; 3200 SW Jefferson Way, Corvallis, Oregon, 97331
  Email: stephanie.schmidt@oregonstate.edu, stephanie.schmidt2@usda.gov

• Information Manager
  Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
  Email: hjaweb@lists.oregonstate.edu
  URL: http://andrewsforest.oregonstate.edu/
• Stephanie A Schmidt
  USDA Forest Service; 3200 SW Jefferson Way, Corvallis, Oregon, 97331
  Email: stephanie.schmidt@oregonstate.edu, stephanie.schmidt2@usda.gov

• Andrews Forest LTER Site
  Role: Publisher
  Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
  Phone: (541) 737-8480
  Email: lterweb@lists.oregonstate.edu
  URL: http://andrewsforest.oregonstate.edu/

Stream and air temperature are measured in tandem at stream gauging stations and other selected locations and stream confluences within the Andrews Forest. Air temperature is generally measured over the stream or alongside. Currently, mean, max and min water and air temperature data are collected every 5 minutes at the gauging stations and instantaneous temperatures every 15 minutes at all other sites. Most measurements were collected hourly commencing in the later 1990s, but a few sites have daily data beginning in the late 1970s. Historic data collected 1949 to 1981 at Lookout Creek stream gauge are included with the daily summary data. Other Andrews Forest related databases: Long term air temperature data from the reference and benchmark climate stations are also available in MS001. Previous high resolution stream temperature data at some of the small watershed stream gages are available in HT001 and stream temperature data throughout the Andrews Forest stream networks during several years are available in HT002. Stream temperature is a critical parameter in stream ecosystems and controls rates of multiple processes, such as metabolism, growth, decomposition, and solubility of gases, as well as biotic interactions. Measuring stream temperature at stream gages allows examination of long term responses to forest dynamics and forest harvest. These stream and air temperature data also are relevant to research on nutrient dynamics, stream flow, invertebrate and vertebrate responses to microclimate conditions. Field Methods - HT004: General

Purpose: Stream temperature is a critical parameter in stream ecosystems and controls rates of multiple processes, such as metabolism, growth, decomposition, and solubility of gases, as well as biotic interactions. Measuring stream temperature at stream gages allows examination of long term responses to forest dynamics and forest harvest. These stream and air temperature data also are relevant to research on nutrient dynamics, stream flow, invertebrate and vertebrate responses to microclimate conditions.

Method Steps

Sampling

No software entries listed in this EML file.

• LTER controlled vocabulary: climatology (theme), microclimate (theme), stream order (theme), air temperature (theme), water temperature (theme), disturbance (theme), monitoring (theme), ecosystems (theme)
• LTER core research areas: disturbance (theme)

No taxonomic hierarchy listed in this EML file.

• HT001
• HT002
• MS001

• Johnson, Sherri L.; Jones, Julia A. 2000. Stream temperature responses to forest harvest and debris flows in western Cascades, Oregon. Canadian Journal of Fisheries and Aquatic Sciences. 57(Suppl. 2): 30-39.

• Provisional Real-Time Data Graphs and Other Data Products
  Access real-time climate and hydrology stations data graphs (for the past few weeks) and other data products on the Andrews Experimental Forest
  URL: https://andrewsforest.oregonstate.edu/data/streaming
• HJA Provisional Data Portal
  Access provisional data from climate and hydrology stations on the Andrews Experimental Forest
  URL: https://andrewsforest.oregonstate.edu/sites/default/files/lter/data/weather/portal/index.html
• H.J. Andrews Climate Station Methods History
  View climate data collection methods that have been used over time at select stations. Results can be filtered by parameter, climate station, and date range. A general text search is also available.
  URL: https://hjandrews.shinyapps.io/im_methods_history/

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.

License: Creative Commons Attribution 4.0 International Public License

Identifier: CC-BY-4.0

URL: https://creativecommons.org/licenses/by/4.0/

Maintenance update frequency: continually

Description

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

Change History

• Version1 (1000-01-01)
  In October 1991, all thermograph data were run through a data checking program. Many pre-1987 24-hr mean values were recalculated using weighted daytime and nighttime means (values are flagged as 'S').
• Version2 (1000-01-01)
  As of October 1994, all data were run through another set of checking routines. These included 1) missing flag check to ensure that all missing data really has the appropriate flag; 2) date/time check to verify that a record exists for each date (and hour if applicable) and that records fall in the correct order; 3) relative mean/max/min check for each record to make sure that min <= mean <= max; 4) similar sites were paired and the values compared to catch any gross outliers. As a result of #4, some thermograph charts had to be redigitized.
• Version3 (1000-01-01)
  Original metadata creation.
• Version4 (1000-01-01)
  The data is actively managed as an extension of MS001 (and not HT004). Daily formats are identical to MS001 entity 01. Hourly data for the Stream thermograph sites begin in the years 1995 to 1998 and are originally accommodated by MS001 entity 11.
• Version5 (1000-01-01)
  Appended all data to master files. Separated stream temperature from air temperature and placed in separate entities. Reformatted all thermograph sites to use MS001 01,11 formats (daily air temp, hourly air temp) and created similar entities 24, 34 (daily stream temp, hourly stream temp). Also reformatted all data for discontinued sites. Uploaded to the web.
• Version6 (1000-01-01)
  Data is prepared for move into SQLServer as study dataset HT004. A new data abstract is prepared. Stream temperature site data is updated for current sites. All day/night data has been removed and stored in P:\FSDB\HT04\day_night, and this data will only be available by request and not available on the web.
• Version8 (1000-01-01)
  Updated data for all stream gauging sites for WY 2003 & 2004 (all entities).
• Version9 (1000-01-01)
  Updated data for all stream gauging sites for WY 2005 through January 2007 and reference stream sites from January 2004 through March 2007 (all entities).
• Version10 (1000-01-01)
  Updated data for Mack and Watersheds (1,2,3,6,7,8,10) for WY07 (Jan 06-Oct 07) 02/05/2009
• Version11 (1000-01-01)
  Updated data for Mack and Watersheds (1,2,3,6,7,8,10) for WY08 and WY09 (Oct 07-Jan 10) 02/08/2010
• Version12 (1000-01-01)
  Updated data for GSLOOK and confluence streams (TSLOMA, TSLOOK, TSMCRA) for 3/2007-3/2010 04/06/2010
• Version13 (1000-01-01)
  Updated data for Mack and Watersheds (1,2,3,6,7,8,10) for WY10 (Jan 10-Mar 11)
• Version16 (1000-01-01)
  Updated data for GSLOOK and confluence streams (TSLOMA, TSLOOk,TSMCRA) for 3/2/2010-12/31/2011. Also ran QA/QC on entire dataset and fixed a few problems (mainly some missing hours). Uploaded this new dataset (entirely) to SQL.
• Version17 (1000-01-01)
  Updated watershed data (mack, 1,2,3,6,7,8,10) from 20110301 to 20120110.
• Version18 (1000-01-01)
  Updated attribute description for attributes with a fine resolution datetime measurement scale to include 'PST' (pacific standard time).
• Version19 (1000-01-01)
  Updated air and water temperature data for GSLOOK and confluence streams (TSLOMA, TSLOOk,TSMCRA) for 01/01/2012 to 07/31/2013 and watershed data (mack, 1,2,3,6,7,8,10) from 20120110 to 12/31/2012. Also ran QA/QC on entire dataset. Uploaded new dataset (entirely) to SQL and to master.
• Version20 (1000-01-01)
  Updated watershed data for Mack and Watersheds 1, 2, 3, 6, 7, 8, and 10 with new data from 1 Jan 2013 to 15 Jan 2014.
• Version21 (1000-01-01)
  Updated all daily and hourly stream and air temperature at current stream temperature station sites through calendar year 2014, which includes watersheds (Mack, 1,2,3,6,7,8,10) from 01/14/2014 to 01/06/2015 and streams (GSLOOK, TSLOOK, TSLOMA, TSMCRA) from 08/01/2013 to 12/31/2014.
• Version22 (1000-01-01)
  Restructured HT004 to be consistent with entity structures and naming conventions used in MS001 and MS005 study databases. Method code and event codes are added to each entity and a QC level indicator. All data is updated for calendar year 2015.
• Version23 (1000-01-01)
  Water and air temperature are updated at the gauging stations (WS1,2,3,6,7,8,10, Mack and Lookout) through water year 2019 (10/1/2019). The upper Lookout and Lookout-Mack confluence sites are updated into spring 2017 when the older sensors were removed. New Hobo V2 sensors are now employed at these sites and at new sites (Mack, McRae Bridge and Cold Creek), but no data from these are added yet. New locations for air temperature at sites TSLOOK and TSLOMA are initiated. McRae Creek (TSMCRA) site is discontinued but now has NEON measurements.
• Version24 (1000-01-01)
  Water and air temperature are updated at the gauging stations (WS1,2,3,6,7,8,10, Mack) through water year 2024 (10/1/2024). Data from HOBO sites and LOOK are not added yet. Fasbbrige and im_sqe programs were used to process these data
• Version25 (1000-01-01)
  This revision corrects a data entry error in the previous version where the site code for the GS Lookout site was incorrectly recorded as 'GSL' instead of the correct code 'GSLOOK' throughout the dataset.