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RISValidation 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 ...
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 ...
Estimation of Cloud Content by W-Band Radar
Publisher: American Meteorological Society
Abstract: W-band (3.2-mm) radars are seeing increasing utilization as a result of improving microwave technologies and the increased research emphasis being given to nonprecipitating clouds. This niche is exemplified by the study ...
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 ...
Elastohydrodynamic Lubrication Line Contact of a Functionally Graded Material Coated Half-Plane
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The elastohydrodynamic lubrication line contact problem between a functionally graded material (FGM) coated half-plane and a rigid cylindrical punch is investigated. The inhomogeneous elastic properties of the FGM coating ...
Uncertainties of GPM DPR Rain Estimates Caused by DSD Parameterizations
Publisher: American Meteorological Society
Abstract: framework based on measured raindrop size distribution (DSD) data has been developed to assess uncertainties in DSD models employed in Ku- and Ka-band dual-wavelength radar retrievals. In this study, the rain rates and ...