DOI: 10.1002/2015GL063261
论文题名: Satellite view of quasi-equilibrium states in tropical convection and precipitation microphysics
作者: Matsui T. ; Tao W.-K. ; Munchak S.J. ; Grecu M. ; Huffman G.J.
刊名: Geophysical Research Letters
ISSN: 0094-8841
EISSN: 1944-8572
出版年: 2015
卷: 42, 期: 6 起始页码: 1959
结束页码: 1968
语种: 英语
英文关键词: convection
; microphysics
; precipitation
; quasi-equilibrium
Scopus关键词: Heat convection
; Precipitation (chemical)
; Rain
; Rain gages
; Satellites
; Tropics
; Global precipitation measurements
; Microphysics
; Precipitation microphysics
; Quasi equilibrium
; Quasi-equilibrium state
; Temporal and spatial
; Tropical precipitation
; Tropical rainfall measuring mission satellites
; Precipitation (meteorology)
; cooling
; precipitation quality
; satellite imagery
; size distribution
; spatiotemporal analysis
; statistical analysis
; tropical environment
英文摘要: This study shows the time series of statistical composites of precipitation-microphysics signals derived from long-term Tropical Rainfall Measuring Mission (TRMM) satellite observations aggregated over the entire tropical domain (37°N-37°S). The result shows the nearly time-invariant monthly signal statistics throughout this time, confirming convection quasi-equilibrium (CQE) states. Merged precipitation data, with much better temporal and spatial coverage, provide evidence that the equilibrium state occurs on a daily scale. These results further indicate the presence of precipitation microphysics quasi-equilibrium (MQE) within the CQE environment. A simple analytic microphysics framework illustrates the equilibrium precipitation size distribution, as compared with the TRMM radar-based as well as preliminary Global Precipitation Measurement combined retrievals. The MQE readily explains the near-constant tropical precipitation rate, which is roughly balanced with atmospheric radiative cooling rate at the entire tropical scale. Further investigation is required through theoretical, observational, and numerical manners to support the MQE hypothesis. Key Points TRMM satellite precipitation signal statistics Convective quasi-equilibrium Microphysics quasi-equilibrium hypothesis with TRMM and GPM data ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927714177&doi=10.1002%2f2015GL063261&partnerID=40&md5=6c722f645cf761c254b9c78a10ac3ca4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8457
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Mesoscale Atmospheric Processes Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Recommended Citation:
Matsui T.,Tao W.-K.,Munchak S.J.,et al. Satellite view of quasi-equilibrium states in tropical convection and precipitation microphysics[J]. Geophysical Research Letters,2015-01-01,42(6).