Geothermal Exploration in Eastern California Using Aster Thermal Infrared Data

..................................................................................................................................... ix Executive Summary ................................................................................................................... 1 1.0 Introduction ................................................................................................................... 5 2.0. Project Methods ............................................................................................................ 9 2.1. Data .......................................................................................................................... 9 2.2 Removal of Artifacts ............................................................................................... 10 2.2.1 Effect of Topographic Slope Aspect ................................................................... 10 2.2.2. Effect of Albedo ................................................................................................. 11 2.2.3. Effect of Thermal Inertia .................................................................................... 11 2.2.4. Methodology to Correct for Slope Aspect, Albedo and Thermal Inertia ........... 11 2.2.5. Effect of Elevation and Thermal Inversions ....................................................... 14 2.3. Orthorectification .................................................................................................... 15 2.4. Field Trips ............................................................................................................... 16 3.0 Project Results .............................................................................................................. 17 3.1. Choice of ASTER Data ........................................................................................... 17 3.2. Orthorectification .................................................................................................... 18 3.3. Imagery Corrections ................................................................................................ 20 3.4. Effects of Elevation and Temperature Inversions ................................................... 27 3.5. Field Trips ............................................................................................................... 32 3.5.1. July 2006 ............................................................................................................. 32 3.5.2. August 2006 ........................................................................................................ 35 3.5.3. May and June 2009 ............................................................................................. 38 4.0 Conclusions and Recommendations ............................................................................. 47 5.0 References ..................................................................................................................... 48