Journal ArticleDOI
Rain profiling algorithm for the TRMM precipitation radar
Toshio Iguchi,Toshiaki Kozu,Robert Meneghini,Ken-ichi Okamoto +3 more
- Vol. 39, Iss: 12, pp 2038-2052
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TLDR
In this paper, an algorithm that estimates the instantaneous profiles of the true radar reflectivity factor and rainfall rate from the radar reflectivities profiles observed by the precipitation radar (PR) onboard the TRMM satellite is presented.Abstract:
Describes an outline of the algorithm that estimates the instantaneous profiles of the true radar reflectivity factor and rainfall rate from the radar reflectivity profiles observed by the precipitation radar (PR) onboard the TRMM satellite. The major challenge of the algorithm lies in the correction of rain attenuation with the non-uniform beam filling effect. The algorithm was tested with synthetic data and the result is shown.read more
Citations
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Journal ArticleDOI
The Global Precipitation Measurement Mission
Arthur Y. Hou,Ramesh K. Kakar,Steven P. Neeck,Ardeshir A. Azarbarzin,Christian D. Kummerow,Masahiro Kojima,Riko Oki,Kenji Nakamura,Toshio Iguchi +8 more
TL;DR: The Global Precipitation Measurement (GPM) mission is an international satellite mission specifically designed to set a new standard for the measurement of precipitation from space and to provide a new generation of global rainfall and snowfall observations in all parts of the world every 3 h as discussed by the authors.
Journal ArticleDOI
APHRODITE: Constructing a Long-Term Daily Gridded Precipitation Dataset for Asia Based on a Dense Network of Rain Gauges
TL;DR: A daily gridded precipitation dataset covering a period of more than 57 yr was created by collecting and analyzing rain gauge observation data across Asia through the activities of the Asian Precipitation-Highly Resolved Observational Data Integration Towards Evaluation of Water Resources (APHRODITE) project.
Journal ArticleDOI
The Evolution of the Goddard Profiling Algorithm (GPROF) for Rainfall Estimation from Passive Microwave Sensors
Christian D. Kummerow,Yang Hong,William S. Olson,Song Yang,Robert F. Adler,Jeffrey R. McCollum,Ralph Ferraro,Grant W. Petty,D.-B. Shin,Thomas T. Wilheit +9 more
TL;DR: The latest improvements applied to the Goddard profiling algorithm (GPROF) are described, particularly as they apply to the Tropical Rainfall Measuring Mission (TRMM), and the new algorithm makes use of emission and scattering indices instead of individual brightness temperatures.
Journal ArticleDOI
Where are the most intense thunderstorms on earth
TL;DR: In this article, the authors show the results of a systematic search through seven full years of the TRMM database to find indicators of uncommonly intense storms, such as strong (> 40 dBZ) radar echoes extending to great heights, high lightning flash rates, and very low brightness temperatures at 37 and 85 GHz.
Journal ArticleDOI
The Diurnal Cycle of Rainfall and Convective Intensity according to Three Years of TRMM Measurements
TL;DR: The authors presented a comprehensive analysis of the diurnal cycle of the observed precipitation features' rainfall amount, precipitation feature frequency, rainfall intensity, convective-stratiform rainfall portioning, and remotely sensed convective intensity, sampled Tropicswide from space.
References
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Journal ArticleDOI
Evidence from Tropical Raindrop Spectra of the Origin of Rain from Stratiform versus Convective Clouds
Ali Tokay,David A. Short +1 more
TL;DR: In this article, an empirical stratiform-convective classification method based on N 0 and R (rainfall rate) is presented. But, the occurrence of precipitation was found to be 74% (stratiform) and 26% (convection) but total rainfall, on the other hand, was...
Journal ArticleDOI
Errors inherent in the radar measurement of rainfall at attenuating wavelengths
Walter Hitschfeld,Jack Bordan +1 more
TL;DR: In this paper, an equation for the rate of rainfall at a given range from the radar is derived, expressed in terms of the power level of the received signal (corrected for attenuation by intervening cloud and atmospheric gases) and takes account of radar attenuation due to intervening rain.
Journal ArticleDOI
Terminal Velocity of Raindrops Aloft
G. B. Foote,P. S. Du Toit +1 more
TL;DR: In this article, the inadequacy of previous calculations of terminal velocities at other than sea level conditions is discussed, and empirical formulae are presented which fit the data very closely.
Journal ArticleDOI
Intercomparison of Single-Frequency Methods for Retrieving a Vertical Rain Profile from Airborne or Spaceborne Radar Data
T. Iguchi,Robert Meneghini +1 more
TL;DR: In this paper, a review of single-frequency rain profiling methods for an airborne or spaceborne radar is presented starting from a unified point of view starting from the basic differential equation, which facilitates the comparisons between the methods and also provides a better understanding of the physical and mathematical basis of the methods.
Journal ArticleDOI
A Class of Single- and Dual-Frequency Algorithms for Rain-Rate Profiling from a Spaceborne Radar. Pad I: Principle and Tests from Numerical Simulations
Mongi Marzoug,Paul Amayenc +1 more
TL;DR: A class of single- and dual-frequency algorithms that can be used to infer rain-rate profile from a downward-looking spaceborne radar operating at attenuating frequencies is presented, relying on use of power-law relations between the radar reflectivity factor Z and the specific attenuation coefficient k.
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