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Proceedings Paper

Current and future advances in optical multiangle remote sensing of aerosols and clouds based on Terra/MISR experience
Author(s): David J. Diner; Roger Davies; Ralph Kahn; John Martonchik; Barbara Gaitley; Ab Davis
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Paper Abstract

Through acquisition of well-calibrated near-nadir and oblique-angle imagery (0° - 70° zenith angles) at moderately high spatial resolution (275 m - 1.1 km), the Multi-angle Imaging SpectroRadiometer (MISR) experiment aboard NASA's Terra satellite has taken atmospheric remote sensing in new directions. Retrieval algorithms that were largely conceptual prior to Terra launch in 1999 have led to publicly available aerosol and cloud products with direct application to global climate and particulate air quality research. Automated algorithms making use of stereoscopic parallax, time lapse among the nine angular views, and the variation in radiance with view angle, scattering angle, and wavelength (446-866 nm) make possible unique data sets including geometric cloud and aerosol plume heights derived independently of emissivity or temperature assumptions; height-resolved cloud-tracked winds; and aerosol optical depth and particle type over a wide variety of surfaces including bright desert source regions. To illustrate these capabilities, examples of regional and global MISR data products, quantitative evaluations of product accuracies based on comparisons with independent data sources, and time series showing seasonal and interannual variations are presented here. Future sensor improvements aimed at building upon MISR heritage, including expanding the spectral coverage to ultraviolet and shortwave infrared wavelengths, adding polarization channels, and widening the sensor swath, are also discussed.

Paper Details

Date Published: 8 December 2006
PDF: 12 pages
Proc. SPIE 6408, Remote Sensing of the Atmosphere and Clouds, 640801 (8 December 2006); doi: 10.1117/12.698008
Show Author Affiliations
David J. Diner, Jet Propulsion Lab. (United States)
Roger Davies, Univ. of Auckland (New Zealand)
Ralph Kahn, Jet Propulsion Lab. (United States)
John Martonchik, Jet Propulsion Lab. (United States)
Barbara Gaitley, Jet Propulsion Lab. (United States)
Ab Davis, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 6408:
Remote Sensing of the Atmosphere and Clouds
Si-Chee Tsay; Teruyuki Nakajima; Ramesh P. Singh; R. Sridharan, Editor(s)

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