Eddy covariance measurement of CO2 flux to the atmosphere from a area of high volcanogenic emissions, Mammoth Mountain, California
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Abstract
Three pilot studies were performed to assess application of the eddy covariance micrometeorological method in the measurement of carbon dioxide (CO2) flux of volcanic origin. The selected study area is one of high diffuse CO2 emission on Mammoth Mountain, CA. Because terrain and source characteristics make this a complex setting for this type of measurement, added consideration was given to source area and upwind fetch. Footprint analysis suggests that the eddy covariance measurements were representative of an upwind elliptical source area (3.8×103 m2) which can vary with mean wind direction, surface roughness, and atmospheric stability. CO2 flux averaged 8–16 mg m−2 s−1 (0.7–1.4 kg m−2day−1). Eddy covariance measurements of flux were compared with surface chamber measurements made in separate studies [Geophys. Res. Lett. 25 (1998a) 1947; EOS Trans. 79 (1998) F941.] and were found to be similar.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Eddy covariance measurement of CO2 flux to the atmosphere from a area of high volcanogenic emissions, Mammoth Mountain, California |
| Series title | Chemical Geology |
| DOI | 10.1016/S0009-2541(00)00380-6 |
| Volume | 177 |
| Issue | 1-2 |
| Year Published | 2001 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | California Water Science Center, Toxic Substances Hydrology Program |
| Description | 12 p. |
| First page | 31 |
| Last page | 42 |
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