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Title:

Caspar Creek Experimental Watersheds Phase 2 (1985-2017) data

Author(s):

Richardson, Paul W.; Seehafer, Jayme E.; Keppeler, Elizabeth T.; Sutherland, Diane G.; Wagenbrenner, Joseph W.

Publication Year:

2020

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Richardson, Paul W.; Seehafer, Jayme E.; Keppeler, Elizabeth T.; Sutherland, Diane G.; Wagenbrenner, Joseph W. 2020. Caspar Creek Experimental Watersheds Phase 2 (1985-2017) data. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2020-0018

Abstract:

The Caspar Creek Experimental Watersheds are a long-term USDA Forest Service research site located near Fort Bragg, California in the Jackson Demonstration State Forest in a coast redwood and Douglas-fir dominated conifer forest. The site includes two experimental watersheds: the North Fork (473 hectares) and the South Fork (424 hectares). Measurements of precipitation, streamflow, and sediment transport began at Caspar Creek in 1962. Two timber harvesting experiments have been completed. The first experimental harvest (Phase 1) was a selective cut conducted in the South Fork catchment using tractor yarding in the early 1970s, prior to the implementation of the modern California Forest Practice Rules. Phase 1 of the project includes data from 1962 to 1985 (Richardson et al. 2020, https://doi.org/10.2737/RDS-2020-0017). Gauging stations were added in 12 sub-catchments of the North Fork by 1985 in preparation for the second experimental harvest (Phase 2). From 1985 to 1992, roughly half of the North Fork watershed was clearcut, mainly using cable yarding, and following the newly-enacted Forest Practice Rules. Gauging stations were added in 10 sub-catchments of the South Fork in 2000 in preparation for a third harvesting experiment (Phase 3). Logging for the third harvest occurred in 2017-2019 in the South Fork watershed.

This data publication contains all Phase 2 data: 1) water depth (stage) and volumetric discharge data from the North Fork weir from August 1985 to July 2017 as well as for one sub-watershed gauging station (XYZ) from November 1999 to July 2017 and stage data for one other sub-watershed (Arfstein) from August 1985 to July 2017; 2) annual pond deposition volumes for the weir collection ponds directly upstream of the North Fork and South Fork weirs from 1986 to 2017; 3) suspended sediment concentrations collected at the North Fork weir, Arfstein rated section, and XYZ flume during from 1985 to 2017; and 4) bedload transport rates measured during thirteen storms (stage > 2 feet at the North Fork weir) from 1988 to 1995 on the North Fork mainstem at the Arfstein gauging station.

Keywords:

elevation; environment; geoscientificInformation; inlandWaters; climatologyMeteorologyAtmosphere; Natural Resource Management & Use; Forest & Plant Health; creek; stream; hydrology; geomorphology; timber harvesting; experimental watersheds; time series; logging; bedload; bed load; sediment transport; Caspar Creek Experimental Watersheds; California; Mendocino County; Coast Ranges; Jackson Demonstration State Forest

Related publications:

• Richardson, Paul W.; Seehafer, Jayme E.; Keppeler, Elizabeth T.; Sutherland, Diane G.; Wagenbrenner, Joseph W.; Bladon, Kevin D.; Dymond, Salli F.; Cole, Ryan P. 2021. Caspar Creek Experimental Watersheds Phase 2 (1985-2017) data. 2nd Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2020-0018-2
• Richardson, Paul W.; Seehafer, Jayme E.; Keppeler, Elizabeth T.; Sutherland, Diane G.; Wagenbrenner, Joseph W. 2020. Caspar Creek Experimental Watersheds Phase 1 (1962-1985) data. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2020-0017
• Richardson, Paul W.; Seehafer, Jayme E.; Keppeler, Elizabeth T.; Sutherland, Diane G.; Wagenbrenner, Joseph W.; Bladon, Kevin D.; Dymond, Salli F.; Cole, Ryan P. 2021. Fifty-eight years and counting of watershed science at the Caspar Creek Experimental Watersheds in northern California. Hydrological Processes. 35(6): e14207. https://doi.org/10.1002/hyp.14207 https://research.fs.usda.gov/treesearch/63022

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