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RISApplication of a Threshold Method to Airborne–Spaceborne Attenuating-Wavelength Radars for the Estimation of Space–Time Rain-Rate Statistics
Publisher: American Meteorological Society
Abstract: A method is proposed for estimating the area-average rain-rate distribution from attenuating-wavelength spaceborne or airborne radar data. Because highly attenuated radar returns yield unreliable estimates of the rain rate, ...
Simultaneous Ocean Cross Section and Rainfall Measurements from Space with a Nadir-Looking Radar
Publisher: American Meteorological Society
Abstract: In the case of a nadir-looking spaceborne or aircraft radar in the presence of rain the return power corresponding to secondary surface scattering may provide information on the properties of the surface and the precipitation. ...
Validation of TRMM Precipitation Radar through Comparison of Its Multiyear Measurements with Ground-Based Radar
Publisher: American Meteorological Society
Abstract: A procedure to accurately resample spaceborne and ground-based radar data is described and then is applied to the measurements taken from the Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) and the ...
Intercomparison of Single-Frequency Methods for Retrieving a Vertical Rain Profile from Airborne or Spaceborne Radar Data
Publisher: American Meteorological Society
Abstract: This paper briefly reviews several single-frequency rain profiling methods for an airborne or spaceborne radar. The authors describe the different methods from a unified point of view starting from the basic differential ...
Modified Hitschfeld–Bordan Equations for Attenuation-Corrected Radar Rain Reflectivity: Application to Nonuniform Beamfilling at Off-Nadir Incidence
Publisher: American Meteorological Society
Abstract: s shown by Takahashi et al., multiple path attenuation estimates over the field of view of an airborne or spaceborne weather radar are feasible for off-nadir incidence angles. This follows from the fact that the surface ...
Physical Evaluation of GPM DPR Single- and Dual-Wavelength Algorithms
Publisher: American Meteorological Society
Abstract: AbstractA physical evaluation of the rain profiling retrieval algorithms for the Dual-Frequency Precipitation Radar (DPR) on board the Global Precipitation Measurement (GPM) Core Observatory satellite is carried out by ...
On the Equivalence of Dual-Wavelength and Dual-Polarization Equations for Estimation of the Raindrop Size Distribution
Publisher: American Meteorological Society
Abstract: For air- and spaceborne weather radars, which typically operate at frequencies of 10 GHz and above, attenuation correction is usually an essential part of any rain estimation procedure. For ground-based radars, where the ...
A Study on the Feasibility of Dual-Wavelength Radar for Identification of Hydrometeor Phases
Publisher: American Meteorological Society
Abstract: An important objective for the dual-wavelength Ku-/Ka-band precipitation radar (DPR) that will be on board the Global Precipitation Measurement (GPM) core satellite is to identify the phase state of hydrometeors along the ...
Examination of Effective Dielectric Constants of Nonspherical Mixed-Phase Hydrometeors
Publisher: American Meteorological Society
Abstract: he validity of the effective dielectric constant ?eff for nonspherical mixed-phase particles is tested by comparing the scattering parameters of ice?water mixtures for oblate and prolate spheroids obtained from the ...
A Modified Dual-Wavelength Technique for Ku- and Ka-Band Radar Rain Retrieval
Publisher: American Meteorological Society
Abstract: To overcome a deficiency in the standard Ku- and Ka-band dual-wavelength radar technique, a modified version of the method is introduced. The deficiency arises from ambiguities in the estimate of the mass-weighted diameter ...