Rapid reconnaissance of geothermal prospects using shallow temperature surveys. Second technical report

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Report: Rapid reconnaissance of geothermal prospects using shallow temperature surveys. Second technical report

Abstract
The previously examined geothermal sites at Long Valley and Coso were studied in much greater detail. Techniques for correcting the 2-m temperature data were evaluated. Using a preliminary model and analysis of the Coso data, the importance of measuring soil thermal diffusivity data at each temperature probe site was shown. Corrected 2-m temperature anomaly at Coso was compared with a low altitude aeromagnetic anomaly and an anomaly outlined by electrical resistivity methods obtained independently. Preliminary tests were made with a simple thermal conductivity probe demonstrating the feasibility of measuring soil thermal diffusivity at the time the 2-m temperatures are recorded. This opens the way for operational shallow temperature surveys in areas which do not have, as at Coso, a simple set of surface conditions. It is concluded that making useful shallow temperature measurements where there is a modest amount of ground water flow need not be a hopeless task.

Authors 
Leschack, L. A.; Lewis, J. E.; Chang, D. C.; Lewellen, R. I.; O'Hara and N.W.  








Published 
DOE Information Bridge, 3/1/1979





DOI 
10.2172/6122636


 

Citation

Leschack, L. A.; Lewis, J. E.; Chang, D. C.; Lewellen, R. I.; O'Hara, N.W.  . 3/1/1979. Rapid reconnaissance of geothermal prospects using shallow temperature surveys. Second technical report. (!) : DOE Information Bridge.


Related Geothermal Exploration Activities
Activities (1)


Areas (1)
  1. Coso Geothermal Area
Regions (0)