DOI: 10.1175/JCLI-D-14-00370.1
Scopus记录号: 2-s2.0-84920261247
论文题名: Latent heating contribution from precipitation systems with different sizes, depths, and intensities in the tropics
作者: Liu C. ; Shige S. ; Takayabu Y.N. ; Zipser E.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 1 起始页码: 186
结束页码: 203
语种: 英语
Scopus关键词: Climatology
; Oceanography
; Precipitation (meteorology)
; Radar
; Radar measurement
; Rain
; Rain gages
; Tropics
; Convective precipitation
; Different proportions
; Latent heating/cooling
; Meso-scale systems
; Mesoscale Convective System
; Precipitation systems
; Stratiform precipitation
; Tropical rainfall measuring missions
; Storms
; climatology
; convective system
; cooling
; heating
; mesoscale meteorology
; precipitation intensity
; TRMM
; tropical region
英文摘要: Latent heating (LH) from precipitation systems with different sizes, depths, and convective intensities is quantified with 15 years of LH retrievals from version 7 Precipitation Radar (PR) products of the Tropical Rainfall Measuring Mission (TRMM). Organized precipitation systems, such as mesoscale convective systems (MCSs; precipitation area > 2000km2), contribute to 88% of the LH above 7 km over tropical land and 95% over tropical oceans. LH over tropical land is mainly from convective precipitation, and has one vertical mode with a peak from 4 to 7 km. There are two vertical modes of LH over tropical oceans. The shallow mode from about 1 to 4km results from small, shallow, and weak precipitation systems, and partially from congestus clouds with radar echo top between 5 and 8 km. The deep mode from 5 to 9km is mainly from stratiform precipitation in MCSs. MCSs of different regions and seasons have different LH vertical structure mainly due to the different proportion of stratiform precipitation. MCSs over ocean have a larger fraction of stratiform precipitation and a top-heavy LH structure. MCSs over land have a higher percentage of convective versus stratiform precipitation, which results in a relatively lower-level peak in LH compared to MCSs over the ocean. MCSs during monsoons have properties of LH in between those typical land and oceanic MCSs. Consistent with the diurnal variation of precipitation, tropical land has a stronger LH diurnal variation than tropical oceans with peak LH in the late afternoon. Over tropical oceans in the early morning, the shallowmode of LH peaks slightly earlier than the deep mode. There are almost no diurnal changes ofMCSs LH over oceans. However, the small convective systems over land contribute a significant amount of LH at all vertical levels in the afternoon, when the contribution of MCSs is small. © 2015 American Meteorological Society. 资助项目: NASA, National Aeronautics and Space Administration
; NASA, National Aeronautics and Space Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50560
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Physical and Environmental Sciences, Texas A and M University-Corpus Christi, Corpus Christi, TX, United States; Graduate School of Science, Kyoto University, Kyoto, Japan; Atmosphere and Ocean Research Institute, Tokyo University, Tokyo, Japan; Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, United States
Recommended Citation:
Liu C.,Shige S.,Takayabu Y.N.,et al. Latent heating contribution from precipitation systems with different sizes, depths, and intensities in the tropics[J]. Journal of Climate,2015-01-01,28(1)