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Illilouette Creek Basin Distributed Shallow Soil Moisture 2014-2020


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Created: Jul 21, 2026 at 8:35 p.m. (UTC)
Last updated: Jul 22, 2026 at 5:22 p.m. (UTC) (Metadata update)
Published date: Jul 22, 2026 at 5:22 p.m. (UTC)
DOI: 10.4211/hs.f789950ed4af4434a7a256506fa3709c
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Sharing Status: Published
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Abstract

These files contain soil moisture measurements collected using a Campbell HSII TDR probe throughout Yosemite's Illilouette Creek Basin. Measurements represent the average volumetric water content over the top 12cm of soil. Collections were designed to capture variability over time as well as variability across different topographies and fire histories. A subset of these measurements are discussed in more detail in the following article: Boisramé, Gabrielle, Sally Thompson, and Scott Stephens. "Hydrologic responses to restored wildfire regimes revealed by soil moisture-vegetation relationships." Advances in Water Resources 112 (2018): 124-146. https://doi.org/10.1016/j.advwatres.2017.12.009

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Illilouette Creek Basin
North Latitude
37.6900°
East Longitude
-119.4620°
South Latitude
37.6400°
West Longitude
-119.5820°

Temporal

Start Date:
End Date:

Content

readme.txt

Prepared by Gabrielle Boisrame. Email: gabrielle.boisrame@dri.edu

The MeasSite tab gives descriptions of each measurement site.
The AllTDR tab gives every single soil moisture measurement, along with all connected data.

Column Names for AllTDR tab:
Site: Identifier for study site where the measurement was taken. Each site is approximately a square 100 ft by 100 ft.
Veg: Vegetation class. Conifers are divided among abma (red fir), abco (white fir), pico (Lodgepole pine), mix fir, mix con (for mixes of different kinds of conifers) or things like mix con rec meaning mixed conifer recruitment (saplings only, few to no live adult trees). Willows are divided among riparian and hillside, since willows growing in riparian areas were in very high soil moisture, but willows growing on a hillslope did not generally indicate soil moisture that was any higher than that for other shrubs. 
SubSite: To divide sites by vegetation, I added this subsite column. For example, site 1 has both shrubs and meadow vegetation, so measurements in the shrubs are labeled 1.1 while those in the meadow are labeled 1.2.
LonPoint and LatPoint: Longitude and latitude at the point measured (WGS84)
VWC: Volumetric Water Content (as a %) measured using HSII TDR probe, which takes the average over the top 12cm of soil. In many saturated soils the device could not calculate the percent, so I entered 55.555 for these points because the maximum VWC measured was just under 55%.

Vegetation Notes:
Mix con means there's a roughly even mix of various pines and firs
Mix firs means roughly even mix of white and red fir
If tree name isn't followed by "rec." then the area is dominated by adult trees

For some very wet sites, the TDR could not calculate a soil moisture value. These points were recorded as 55.55% VWC since this is just above the maximum recorded value.

Related Resources

This resource is described by https://doi.org/10.1016/j.advwatres.2017.12.009

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
NSF Critical Zone Collaborative Network: Big Data 2011346
Joint Fire Sciences Program Hydrology and Fire in the Sierra Nevada: A Possible Triple Win 14-1-06-22

How to Cite

Boisrame, G. F. (2026). Illilouette Creek Basin Distributed Shallow Soil Moisture 2014-2020, HydroShare, https://doi.org/10.4211/hs.f789950ed4af4434a7a256506fa3709c

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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