Investigation of Atmospheric Properties and Correction Using Simultaneous Multispectral, Hyperspectral, and Shadow Band Radiometer Measurements at Davis, CA
Abstract
First-principles atmospheric correction of earth-viewing spectral imagery requires atmospheric property information derived from the image itself or measured independently. A field experiment was conducted in May, 2003 at Davis, CA to evaluate the consistency of atmospheric properties and surface reflectance derived from simultaneous ground-, aircraft-, and satellite-based spectral measurements. The experiment involved the simultaneous collection of HyMap and Landsat 7 imagery, in-situ reflectance spectra of calibration surfaces, and sun and sky radiances from a multi-filter rotating shadow band radiometer (MFRSR). This paper presents a preliminary analysis of the data. The relatively low single-scattering albedos of ~0.8 often retrieved by Multifilter Rotating Shadowband Radiometers (MFRSR) may indicate the need to increase the typical aerosol backscatter fraction used to model earth-viewing sensors.
- Publication:
-
AGU Spring Meeting Abstracts
- Pub Date:
- May 2004
- Bibcode:
- 2004AGUSM.A54A..04R
- Keywords:
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- 0305 Aerosols and particles (0345;
- 4801);
- 0360 Transmission and scattering of radiation;
- 0394 Instruments and techniques