Quantifying the Information Content of Global Imaging Spectroscopy
Abstract
Imaging spectrometers operating in the thermal infrared and solar reflected wavelengths are sensitive to a wide range of surface and atmospheric phenomena. We survey several recent studies of imaging spectrometer information content, and summarize methods for quantifying this information. We present degree of freedom analyses based on combined models of atmospheric scattering, absorption, and surface reflectance, including initial results from field experiments in terrestrial and aquatic domains. These experiments show improvements in retrieval accuracy and fidelity to ground truth. Finally, we describe the open-source ISOFIT codebase (https://github.com/isofit/isofit).
Acknowledgements: A portion of this research was performed at the Jet Propulsion Laboratory, California Institute of Technology. We acknowledge the support of a PRISM AITT grant from the National Aeronautics and Space Administration (NASA) Earth Science Technology Office. We acknowledge the support of the JPL and Caltech Presidents' and Directors' Fund Program. We thank other supporting sponsors including the NASA Earth Science Division for the AVIRIS-NG instrument and the data analysis program "Utilization of Airborne Visible/Infrared Imaging Spectrometer Next Generation Data from an Airborne Campaign in India" NNH16ZDA001N-AVRSNG, for its support of the algorithm development; the Jet Propulsion Laboratory Research and Technology Development Program; and the NASA Center Innovation Fund managed in conjunction with the Jet Propulsion Laboratory Office of the Chief Scientist and Technologist. Copyright 2018 California Institute of Technology. US Government Support Acknowledged.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMGC11A..01T
- Keywords:
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- 0232 Impacts of climate change: ecosystem health;
- GEOHEALTHDE: 1640 Remote sensing;
- GLOBAL CHANGEDE: 4337 Remote sensing and disasters;
- NATURAL HAZARDSDE: 4217 Coastal processes;
- OCEANOGRAPHY: GENERAL