Retrieval of mid-tropospheric CO2 directly from AIRS measurements

Edward T. Olsen; Moustafa T. Chahine; Luke L. Chen; Thomas S. Pagano

doi:10.1117/12.777920

11 April 2008 Retrieval of mid-tropospheric CO2 directly from AIRS measurements

Edward T. Olsen, Moustafa T. Chahine, Luke L. Chen, Thomas S. Pagano

Proceedings Volume 6966, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIV; 696613 (2008) https://doi.org/10.1117/12.777920
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

We apply the method of Vanishing Partial Derivatives (VPD) to AIRS spectra to retrieve daily the global distribution of CO₂ at a nadir geospatial resolution of 90 km x 90 km without requiring a first-guess input beyond the global average. Our retrievals utilize the 15 μm band radiances, a complex spectral region. This method may be of value in other applications, in which spectral signatures of multiple species are not well isolated spectrally from one another.

Citation Download Citation

Edward T. Olsen, Moustafa T. Chahine, Luke L. Chen, and Thomas S. Pagano "Retrieval of mid-tropospheric CO2 directly from AIRS measurements", Proc. SPIE 6966, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIV, 696613 (11 April 2008); https://doi.org/10.1117/12.777920

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