Iterative atmospheric parameters estimation of the tropical atmosphere

Francesco Longo; Giovanni Laneve

doi:10.1117/12.511007

16 February 2004 Iterative atmospheric parameters estimation of the tropical atmosphere

Francesco Longo, Giovanni Laneve

Proceedings Volume 5235, Remote Sensing of Clouds and the Atmosphere VIII; (2004) https://doi.org/10.1117/12.511007
Event: Remote Sensing, 2003, Barcelona, Spain

Abstract

This work describes an iterative algorithm capable of determining the atmospheric parameters (temperature and water vapour profiles) by using NOAA ATOVS data and “in situ” observations currently collected at the Broglio Space Centre (BSC, located in Malindi-Kenya, 40 E, 3 S) of the Centro di Ricerca Progetto San Marco (CRPSM) of the University of Rome “La Sapienza” (Italy). The method is based on the usual approach to the problem of retrieving atmospheric characteristics: 1. a forward model (using the Modtran atmospheric code); 2. a numerical method for solving systems of non-linear equations (by means of a Broyden’s Quasi-Newton methods and a regularization method coupled with a preconditioning to computing stabilized solutions to the ill-posed problems). The retrieval method for the temperature and water vapour is discussed in detail; comparisons are also made with available co-located atmospheric information from balloon-based soundings. The aim of this paper is to evaluate the accuracy of the estimate of the tropical atmosphere parameters using a retrieval algorithm developed by authors, based on Broyden’s method for systems of non-linear equations.

Citation Download Citation

Francesco Longo and Giovanni Laneve "Iterative atmospheric parameters estimation of the tropical atmosphere", Proc. SPIE 5235, Remote Sensing of Clouds and the Atmosphere VIII, (16 February 2004); https://doi.org/10.1117/12.511007

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