Tropospheric ozone near-nadir-viewing IR spectral sensitivity and ozone measurements from NAST-I

Daniel K. Zhou; William L. Smith; Allen M. Larar

doi:10.1117/12.417017

8 February 2001 Tropospheric ozone near-nadir-viewing IR spectral sensitivity and ozone measurements from NAST-I

Daniel K. Zhou, William L. Smith, Allen M. Larar

Proceedings Volume 4151, Hyperspectral Remote Sensing of the Land and Atmosphere; (2001) https://doi.org/10.1117/12.417017
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

IR ozone spectra from near nadir observations have provided atmospheric ozone information from the sensor to the Earth's surface. Simulations of the NPOESS Airborne Sounder Testbed- Interferometer (NAST-I) from the NASA ER-2 aircraft with a spectral resolution of 0.25 cm^-1 were used for sensitivity analysis. The spectral sensitivity of ozone retrievals to uncertainties in atmospheric temperature and water vapor is assessed in order to understand the relationship between the IR emissions and the atmospheric state. In addition, ozone spectral radiance sensitivity to its ozone layer densities and radiance weighting functions reveals the limit of the ozone profile retrieval accuracy from NAST-I measurements. Statistical retrievals of ozone with temperature and moisture retrievals from NAST-I spectra have been investigated and the preliminary results from NAST-I field campaigns are presented.

Citation Download Citation

Daniel K. Zhou, William L. Smith, and Allen M. Larar "Tropospheric ozone near-nadir-viewing IR spectral sensitivity and ozone measurements from NAST-I", Proc. SPIE 4151, Hyperspectral Remote Sensing of the Land and Atmosphere, (8 February 2001); https://doi.org/10.1117/12.417017

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