DOI: 10.1002/2014GL060683
论文题名: Statistical properties of precipitation as observed by the TRMM precipitation radar
作者: Yang S. ; Nesbitt S.W.
刊名: Geophysical Research Letters
ISSN: 0094-9893
EISSN: 1944-9624
出版年: 2014
卷: 41, 期: 15 起始页码: 5636
结束页码: 5643
语种: 英语
英文关键词: precipitation
; radar
; TRMM
Scopus关键词: Oceanography
; Pixels
; Precipitation (chemical)
; Radar
; Rain gages
; Weather forecasting
; Climate models
; Radar measurement
; Large-scale statistics
; Numerical weather prediction
; Precipitation radar
; Rainfall contributions
; Statistical properties
; Total precipitation
; TRMM
; Tropical rainfall measuring missions
; Convective rain
; Rain
; convection
; precipitation intensity
; radar imagery
; rainfall
; statistical analysis
; TRMM
; weather forecasting
英文摘要: The statistical properties of tropic-subtropic precipitation are revealed with 13years of Tropical Rainfall Measuring Mission (TRMM) precipitation radar (PR) measurements. About 3% of PR observations are raining pixels. The average daily rainfall over 37.5°N-37.5°S is 1.28, 1.18, and 2.46mmd -1 for convective, stratiform, and total rain, respectively, indicating 51.85% from convective rain and 48.09% from stratiform rain. The related values are 1.300, 1.272, and 2.573mmd-1 over ocean and 1.22, 0.97, and 2.19mmd-1 over land, indicating a convective rain fraction of 50.51% over ocean and 55.77% over land. The 92% (93%) and 73% (55%) of rain events over ocean (land) are from stratiform and convective rain <5mmh -1, respectively, while the associated rainfall contributions in stratiform and convective rain are 62% (68%) and 27% (15%) over ocean (land). Results demonstrate that contributions from large rain intensity events are very importation in total precipitation, especially over land. The rainfall missed by TRMM PR is mostly light rain and does not significantly impact large-scale statistics of convective and stratiform rain amount. Light rain will increase the total precipitation by about 10% and, if considered a separate category, decrease the observed convective and stratiform rain contributions about 10% over the PR domain. These statistical properties of precipitation could be utilized as a baseline in the assessment of precipitation from operational numerical weather prediction and climate models. Key Points Only about 3% of TRMM PR observations are raining pixels Ninety-two (93%) of the rain events over ocean (land) are from stratiform rain <5 mm hr-1 27% (15%) of convective rainfall over ocean (land) is from rain <5 mm hr-1 © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905293170&doi=10.1002%2f2014GL060683&partnerID=40&md5=952fc7ee3c707d9efb25ce755e321497
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7157
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Naval Research Laboratory, Monterey, CA, United States
Recommended Citation:
Yang S.,Nesbitt S.W.. Statistical properties of precipitation as observed by the TRMM precipitation radar[J]. Geophysical Research Letters,2014-01-01,41(15).