18 September 2009 Monitoring geothermal activity in Yellowstone National Park using airborne thermal infrared remote sensing
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Abstract
High-resolution multispectral images in the green (0.57 μm), red (0.65 μm), near-infrared (0.80 μm) and thermal infrared (8-12 μm) bands were acquired using the Utah State University airborne multispectral system over several active geothermal areas in Yellowstone National Park as part of an ongoing monitoring program initiated in the Fall of 2005. The imagery was acquired under clear sky conditions at two different times of the day, early afternoon and midnight, with the objective of studying the geothermal properties of the different active thermal areas in the park as well as providing calibrated thermal imagery for long-term monitoring of changes. The paper will describe the image acquisition and processing methodology, as well as surface emissivity and atmospheric corrections conducted to obtain at-surface temperatures. Examples of the products obtained over different areas will be shown and discussed.
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C. M. U. Neale, C. M. U. Neale, S. Sivarajan, S. Sivarajan, O. Z. Akasheh, O. Z. Akasheh, C. Jaworowski, C. Jaworowski, H. Heasler, H. Heasler, } "Monitoring geothermal activity in Yellowstone National Park using airborne thermal infrared remote sensing", Proc. SPIE 7472, Remote Sensing for Agriculture, Ecosystems, and Hydrology XI, 747210 (18 September 2009); doi: 10.1117/12.834225; https://doi.org/10.1117/12.834225
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