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Proceedings Paper

Interpreting millimeter-wave radiances over convective clouds
Author(s): Ziad S. Haddad; Raul Moreno Galdon; Randy C. Sawaya; Francisco J. Tapiador
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Paper Abstract

Attempts to interpret the measurements of millimeter-wave radiometers over tropical storms must overcome the difficulty of modeling the scattering signatures of hydrometeors at these frequencies. Approaches to date try to retrieve surface precipitation, to which the observations are not directly sensitive. Millimeter wavelengths are most sensitive to the scattering from hydrometeors in the cloud upper levels. Millimeter-wavelength radiometers have a definite advantage over the lower frequency radiometers in that they have finer spatial resolution to resolve deep convection. Preliminary analyses indicate that the measurements are indeed sensitive to the depth and intensity of convection. The challenge is to derive a robust approach to estimate the characteristics of the convection directly from the observations, and conversely to derive a robust forward representation of the dependence of the radiances on the underlying moisture fields. This is done in a two-step semi-empirical approach.

Paper Details

Date Published: 23 October 2018
PDF: 6 pages
Proc. SPIE 10782, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VII, 1078203 (23 October 2018); doi: 10.1117/12.2500284
Show Author Affiliations
Ziad S. Haddad, Jet Propulsion Lab. (United States)
Raul Moreno Galdon, Univ. de Castilla La-Mancha (Spain)
Randy C. Sawaya, Jet Propulsion Lab. (United States)
Univ. of California at Irvine (United States)
Francisco J. Tapiador, Univ. de Castilla La-Mancha (Spain)

Published in SPIE Proceedings Vol. 10782:
Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VII
Guosheng Liu; Ziad S. Haddad, Editor(s)

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