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Optimal Estimation of Rain Rate Profiles From Radar Returns at Attenuating Wavelengths
Z. Haddad,E. Im +1 more
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TLDR
In this article, the authors quantify the ambiguities of a particular vertical rain intensity profile from a given time profile of radar echo powers measured by a downward-looking (spaceborne or airborne) radar at a single attenuating frequency.Abstract:
There are significant inherent ambiguities when one tries to determine a particular vertical rain intensity profile from a given time profile of radar echo powers measured by a downward-looking (spaceborne or airborne) radar at a single attenuating frequency. In this paper, we quantify these ambiguities mathematically, and examine their effects on the performance of rain-rate retrieval algorithms initially proposed for use by the Precipitation Radar of the Tropical Rainfall Measuring Mission (TRMM).read more
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Journal ArticleDOI
Stochastic Filtering of Rain Profiles Using Radar, Surface-Referenced Radar, or Combined Radar-Radiometer Measurements
TL;DR: In this paper, a computationally efficient nearly optimal Bayesian algorithm was proposed to estimate rain and drop size distribution profiles, given a radar reflectivity profile at a single attenuating wavelength in addition to estimating the average of all the mutually ambiguous combinations of rain parameters that can produce the data observed, the approach also calculates the n-ns uncertainty in its estimates.
Journal ArticleDOI
Intrinsic Ambiguities in the Retrieval of Rain Rates from Radar Returns at Attenuating Wavelengths
TL;DR: In this paper, the authors derived formulas for mutually ambiguous solutions for different combinations of radar data and quantified the resulting ambiguities mathematically, and showed that several substantially different rain profiles can still realistically be considered solutions.
Proceedings ArticleDOI
Optimal estimation of rain rate profiles from single-frequency radar echoes
TL;DR: In this article, the authors present an optimal approach to generate deterministic mutually ambiguous rain rate profiles from a given profile of received radar reflectivities, which can be used to assess how likely each of these deterministic profiles is, what the appropriate "average" profile should be, and what the variance of these multiple solutions is.