Retrieval of atmospheric thermodynamical parameters using satellite measurements with a maximum entropy method
Urban, B.
Année de publication
1996
A maximum entropy method is applied to retrieve the atmospheric
distribution of temperature and humidity on a vertical, when this
vertical is remotely observed from a satellite at different wavelengths.
Errors in the forward model and in the observations are taken into
account. In particular, these errors can be non-Gaussian, and their
components may be correlated with each other. The presented technique
also ensures that the solution of this inverse problem can be forced to
be bounded if this is physically needed (as with atmospheric humidity),
without any penalty in numerical cost. A practical application is
developed, to retrieve vertical distributions from radiometric
observations performed by the NOAA meteorological satellites.
Comparisons of the inverted distributions with radiosoundings
measurements are discussed.</div>
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