CO2 flux and soil temperature measurements at the Shady Rest thermal area, Mammoth Lakes, California, 2010-2019
Dates
Publication Date
2020-10-19
Time Period
2010-06-03
Time Period
2019-10-02
Citation
Bergfeld, D., 2020, CO2 flux and soil temperature measurements at the Shady Rest thermal area, Mammoth Lakes, California, 2010-2019: U.S. Geological Survey data release, https://doi.org/10.5066/P9IS5AA8.
Summary
The Shady Rest thermal area (SRST) is characterized by elevated soil temperatures and CO2 emissions and associated vegetation kill. The site is located about 3 km northwest of the Casa Diablo geothermal power plant at Mammoth Lakes, California. The elevated soil temperatures and CO2 emissions are related to changes in the shallow hydrothermal system caused by geothermal fluid production. During late 2006 changes at the Casa Diablo geothermal power plant included installation of 2 new production wells near SRST. Fluid production from these wells resulted in the expansion of areas of existing thermal ground, development of new thermal ground and an increase in the number of tree kills. Between 2006 and 2019 the USGS made yearly measurements [...]
Summary
The Shady Rest thermal area (SRST) is characterized by elevated soil temperatures and CO2 emissions and associated vegetation kill. The site is located about 3 km northwest of the Casa Diablo geothermal power plant at Mammoth Lakes, California. The elevated soil temperatures and CO2 emissions are related to changes in the shallow hydrothermal system caused by geothermal fluid production. During late 2006 changes at the Casa Diablo geothermal power plant included installation of 2 new production wells near SRST. Fluid production from these wells resulted in the expansion of areas of existing thermal ground, development of new thermal ground and an increase in the number of tree kills.
Between 2006 and 2019 the USGS made yearly measurements of CO2 flux and soil temperature across SRST to establish baseline conditions and otherwise document geothermal-related disturbances. The original network of measurement sites established in 2006 included 77 locations across ~61,000 m2. Those data are reported in Bergfeld and Evans (2011). This dataset reports results of flux and soil temperature measurements between June 2010 and October 2019. The measurements were made over a ~100,000 m2 network consisting of 129 points.
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Purpose
The purpose of this data release is to provide CO2 flux and soil temperature data from the Shady Rest thermal area near the town of Mammoth Lakes, California. The data are provided to document changes that occurred between 2010 and 2019 and can be used to establish background information prior to the planned expansion of the Casa Diablo production well field.