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Progress from TRMM to GPM

Kenji NAKAMURA
2021 Journal of the Meteorological Society of Japan  
The period of the precipitation measurement with spaceborne radars extended to more than 23 years, which may make it possible to detect the change of precipitation climatology related to change in the  ...  The features of TRMM observation were as follows: (a) it followed a non-sun synchronized orbit that enabled the diurnal variation of precipitation to be investigated; (b) it carried a precipitation radar  ...  The author would also like to express deep gratitude to the founders of TRMM and GPM who are no longer with us: J. Simpson, D. Atlas, Tsu. Nitta, O. Thiele, A. Hou, and T. Kozu.  ... 
doi:10.2151/jmsj.2021-035 fatcat:25s5l2wy2jbp5k4hpt667hoezy

Equatorial Atlantic Rain Frequency: An Intercentennial Comparison

David A. Short
2003 Journal of Climate  
, 1998-2000, of observations from the precipitation radar aboard the Tropical Rainfall Measuring Mission satellite observatory.  ...  The radar sensitivity and scanning characteristics combine to underestimate rain occurrence.  ...  This study is supported through the TRMM Science Team under the NASA Headquarters TRMM Program Scientist Dr. Ramesh Kakar.  ... 
doi:10.1175/2775.1 fatcat:tq322h6sw5azdagxj375tog2g4

Propagation of Convective Complexes Observed by TRMM in the Eastern Tropical Atlantic

Leonard M. Druyan
2012 The Open Atmospheric Science Journal  
A heretofore unreported, repeating pattern of northward drift of precipitation maxima is detected on Tropical Rainfall Measurement Mission (TRMM satellite) time-latitude distributions of daily accumulations  ...  The study examines the entire available record of TRMM precipitation observations, 1998-2010, to summarize TRMM maxima propagation over the eastern tropical Atlantic.  ...  TRMM images and data used in this study were acquired using the GES-DISC Interactive Online Visualization and Analysis Infrastructure (Giovanni) as part of the NASA's Goddard Earth Sciences (GES) Data  ... 
doi:10.2174/1874282301206010001 fatcat:thm5ueagerczrf2xgk6mocsxxi

TRMM Radar Observations of Shallow Precipitation over the Tropical Oceans

David A. Short, Kenji Nakamura
2000 Journal of Climate  
20% of the total precipitation over tropical oceans during both El Niño and La Niña conditions.  ...  The low mode is the dominant feature over regions previously associated with precipitating marine stratocumulus/stratus and trade wind cumulus.  ...  In the standard processing of level-2 PR data, each profile of radar reflectivity is evaluated for surface detection and rain/hydrometeor detection.  ... 
doi:10.1175/1520-0442(2000)013<4107:troosp>2.0.co;2 fatcat:gnukrjzbtzcufhqt7rjxaexttm

Calibrating the quikscat/seawinds radar for measuring rainrate over the oceans

D.E. Weissman, M.A. Bourassa, J.J. O'Brien, J.S. Tongue
2003 IEEE Transactions on Geoscience and Remote Sensing  
The relative magnitudes of the radar backscatter depends on the volumetric rain rate, the rain column height and surface wind velocity, the viewing angle, as well as the polarization (due to the oblateness  ...  It is determined that the backscatter radar cross section can be used to estimate the volumetric rain rate, averaged horizontally, across the surface resolution cells of the scatterometer.  ...  This consistency will be useful if the two datasets are combined for monitoring precipitation over the global oceans.  ... 
doi:10.1109/tgrs.2003.817975 fatcat:c5td33ivmbe3pbbfocmbcvst6i

Improvements in Detection of Light Precipitation with the Global Precipitation Measurement Dual-Frequency Precipitation Radar (GPM DPR)

Atsushi Hamada, Yukari N. Takayabu
2016 Journal of Atmospheric and Oceanic Technology  
This paper demonstrates the impact of the enhancement in detectability by the dual-frequency precipitation radar (DPR) on board the Global Precipitation Measurement (GPM) core observatory.  ...  One type is shallow precipitation, which is most significant for convective precipitation over eastern parts of subtropical oceans, where deep convection is typically suppressed.  ...  Tatsuya Shimozuma of Nagasaki University for kindly providing the list of matchup observation between the TRMM PR and GPM DPR. Thanks are also extended to Dr.  ... 
doi:10.1175/jtech-d-15-0097.1 fatcat:jdrq7kmahzaitec24h6gueztly

Very high resolution rainfall patterns measured by TRMM precipitation radar: seasonal and diurnal cycles

Michela Biasutti, Sandra E. Yuter, Casey D. Burleyson, Adam H. Sobel
2011 Climate Dynamics  
The TRMM Precipitation Radar is used to construct a high resolution (0.05 • x0.05 • ) climatology of rainfall over the latitude band extending to about 37 • North and South.  ...  The results shed light on the roles of changes in the wind direction, the land-sea thermal contrast, small-scale variations in sea surface temperature, and orography in shaping the seasonal and diurnal  ...  Data We use the TRMM 2A25 data set, derived from measurements made with the TRMM Precipitation Radar (PR). We use version 6 of the data set, from 1998 to 2007.  ... 
doi:10.1007/s00382-011-1146-6 fatcat:33siwodi65djnbq43kxmth6bgy

Physical Characterization of Tropical Oceanic Convection Observed in KWAJEX

Sandra E. Yuter, Robert A. Houze, Eric A. Smith, Thomas T. Wilheit, Edward Zipser
2005 Journal of applied meteorology (1988)  
The Tropical Rainfall Measuring Mission (TRMM) Kwajalein Experiment (KWAJEX) was designed to obtain an empirical physical characterization of precipitating convective clouds over the tropical ocean.  ...  radars, profilers, disdrometers, and rain gauges.  ...  backscattered from precipitation and the ocean surface.  ... 
doi:10.1175/jam2206.1 fatcat:3i2gyfxpx5dhnga7anmx7wloaa

ENSO Influence on TRMM Tropical Oceanic Precipitation Characteristics and Rain Rates

David S. Henderson, Christian D. Kummerow, Wesley Berg
2018 Journal of Climate  
Discrepancies between Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) and Precipitation Radar (PR) oceanic rainfall retrievals are prevalent between El Niño and La Niña conditions with  ...  To examine tropical rainfall-sea surface temperature relations, regime-based bias corrections derived using ground validation (GV) measurements are applied to the TRMM rain estimates.  ...  Emissivity of the ocean surface is lower than that of land; therefore, liquid hydrometeors (i.e., clouds and rain) are clearly detectable over oceans for the TMI radiance channels.  ... 
doi:10.1175/jcli-d-17-0276.1 fatcat:2i6g7dq34jak7ksrxbyc7qhrui

Spatial and Seasonal Variation of Rain Profiles over Asia Observed by Spaceborne Precipitation Radar

Masafumi Hirose, Kenji Nakamura
2002 Journal of Climate  
Thus, the Tropical Rainfall Measuring Mission (TRMM) satellite equipped with the first spaceborne precipitation radar (PR) was launched in 1997.  ...  Center, Nagoya University, Nagoya, Japan (Manuscript received 3 September 2001, in final form 5 June 2002) ABSTRACT The Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) has made it  ... 
doi:10.1175/1520-0442(2002)015<3443:sasvor>2.0.co;2 fatcat:424rxpym2nfzdl6y27a2r5n4pe

"Warm Rain" in the Tropics: Seasonal and Regional Distributions Based on 9 yr of TRMM Data

Chuntao Liu, Edward J. Zipser
2009 Journal of Climate  
To answer these questions, a 9-yr TRMM precipitation feature database is used in this study.  ...  First, warm rain features in 208S-208N are selected by specifying precipitation features 1) with minimum infrared brightness temperature . 08C, 2) with TRMM Precipitation Radar (PR) echo top below freezing  ...  This research was supported by NASA Precipitation Measurement Mission Grant NAG5-13628 under the direction of Dr. Ramesh Kakar. Thanks to two anonymous reviewers and Dr.  ... 
doi:10.1175/2008jcli2641.1 fatcat:hwdzjp7e4zfydmbv4ik5rdkcyy

A Report of the Field Operations and Early Results of the South China Sea Monsoon Experiment (SCSMEX)

K. M. Lau, Yihui Ding, Jough-Tai Wang, Richard Johnson, Tom Keenan, Robert Cifelli, John Gerlach, Otto Thiele, Tom Rickenbach, Si-Chee Tsay, Po-Hsiung Lin
2000 Bulletin of The American Meteorological Society - (BAMS)  
results indicate that there are distinctive stages in the onset of the South China Sea monsoon including possibly strong influences from extratropical systems as well as from convection over the Indian Ocean  ...  There is some tantalizing evidence of complex interactions between the supercloud cluster development over the Indian Ocean, advancing southwest monsoon flow over the South China Sea, midlatitude disturbances  ...  The NASA/TRMM project provided support for U.S. participation in SCSMEX including the dual-Doppler radar in the IFA, sounding operations on ships, and SCSMEXrelated modeling/diagnostic pilot activities  ... 
doi:10.1175/1520-0477(2000)081<1261:arotfo>2.3.co;2 fatcat:u5zs6usssnaklaamt2ttoixv34

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Kristina B. Katsaros, Paris W. Vachon, W. Timothy Liu, Peter G. Black
2012 Journal of Oceanography  
can be seen from space, at the surface, and in the precipitating areas of TCs.  ...  The high spatial resolution of precipitation data from the Tropical Rainfall Measuring Mission's rain radar, combined with scatterometer or SAR data, give a significant improvement in the details that  ...  Gray shading outlines the TRMM swath. (b) Winds over the Atlantic Ocean.  ... 
doi:10.1023/a:1015884903180 fatcat:kdmg4qiitnafldwtluiihw5py4

Using TRMM latent heat as a source to estimate convection induced gravity wave momentum flux in the lower stratosphere

Chuntao Liu, Joan Alexander, Jadwiga Richter, Julio Bacmeister
2021 Journal of Geophysical Research - Atmospheres  
Latent heat source data derived from space borne radar observation are used to estimate convective gravity wave momentum flux globally • Mean conditional MF is generally larger over land than over ocean  ...  , mainly due to the larger latent heating rates • There are still large differences in the convective GW MF between TRMM and WACCM6, due to representation of convection in the model  ...  Acknowledgments This research was supported by NSF-1829373, and NASA Precipitation  ... 
doi:10.1029/2021jd035785 fatcat:reqtayhc55a6db4ouvuk2hr46q

Comparison of TRMM and NSCAT observations of surface backscatter over the Amazon rain forest

D.G. Long
1998 IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174)  
Abstruct-The Tropical Rain Measuring Mission (TRMM) precipitation radar (PR) is designed to measure backscatter from rain in order to map the ;mount and extent of rain in the tropical regions.  ...  The TRMM F'R also measures the normalized radar cross section (a") of the surface at a nominal resolution of approximately 4.4 km over an incidence range of 0-18".  ...  Designed primarily to determine rain from the radar backscatter profile, the Ku-band (13.8 GHz) TRMM precipitation n d a r (PR) also measures the H-pol normalized radar cross section (a") of the surface  ... 
doi:10.1109/igarss.1998.703682 fatcat:2jxdynsb3jeajjpibkxdzemiyu
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