GSTDTAP  > 地球科学
DOI10.1016/j.atmosres.2017.02.006
Assessment of satellite precipitation estimates over the slopes of the subtropical Andes
Paula Hobouchian, Maria1; Salio, Paola2,3,4; Garcia Skabar, Yanina1,4,5; Vila, Daniel6; Garreaud, Rene7
2017-07-01
发表期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
EISSN1873-2895
出版年2017
卷号190
文章类型Article
语种英语
国家Argentina; Brazil; Chile
英文摘要

A validation of four satellite daily precipitation estimates at a spatial resolution of 0.25 degrees is performed over the subtropical Andes, an area of highly complex topography: The Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA, 3B42 V7 and RT), the Climate Prediction Center Morphing technique (CMORPH) and the Hydro-Estimator (HYDRO). Remote mountainous regions represent a major challenge for these satellite data products and for studies examining their quality with surface data.


For the assessment of the satellite products, a period of seven years from January 1st 2004 to December 31st 2010 was considered. Different statistics were analyzed considering their variability in the study area and identifying their main differences between the warm and cold seasons. The results indicate a decrease in winter errors which coincides with the wet season over the windward side of the Andes. Also, a significant underestimation of precipitation is observed for all estimates throughout the period analyzed.


The analysis with respect to terrain height shows a greater dependence of errors with topography for all the algorithms that combine infrared and passive microwave data, HYDRO providing the most stable result. The main limitations of the estimates associated with the type of precipitating event and their location relative to the orography are assessed.


Finally, the analysis of two intense precipitation events is presented and allows the assessment of the latest advances in satellite derived estimates with the launch of the Global Precipitation Measurement. (c) 2017 Elsevier B.V. All rights reserved.


英文关键词Precipitation Satellite products Topography
领域地球科学
收录类别SCI-E
WOS记录号WOS:000399631900005
WOS关键词RAINFALL PRODUCTS ; COMPLEX TERRAIN ; SOUTH-AMERICA ; ANALYSIS TMPA ; RESOLUTION ; VALIDATION ; EVENTS ; CMORPH ; BASIN ; EARTH
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/38379
专题地球科学
作者单位1.Serv Meteorol Nacl, Dept Invest & Desarrollo, Av Cnel M Dorrego 4019,C1425GBE Buenos Aires, Buenos Aires, DF, Argentina;
2.CONICET UBA, Ctr Invest Mar & Atmosfera, Buenos Aires, DF, Argentina;
3.Univ Buenos Aires, FCEyN, Dept Ciencias Atmosfera & Oceanos, Buenos Aires, DF, Argentina;
4.UMI Inst Franco Argentino Estudios Clima & Sus Im, Buenos Aires, DF, Argentina;
5.Consejo Nacl Invest Cient & Tecn, Buenos Aires, DF, Argentina;
6.CPTEC, Div Satelites & Sistemas Ambientales, Cachoeira Paulista, SP, Brazil;
7.Univ Chile, Dept Geofis, Santiago, Chile
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GB/T 7714
Paula Hobouchian, Maria,Salio, Paola,Garcia Skabar, Yanina,et al. Assessment of satellite precipitation estimates over the slopes of the subtropical Andes[J]. ATMOSPHERIC RESEARCH,2017,190.
APA Paula Hobouchian, Maria,Salio, Paola,Garcia Skabar, Yanina,Vila, Daniel,&Garreaud, Rene.(2017).Assessment of satellite precipitation estimates over the slopes of the subtropical Andes.ATMOSPHERIC RESEARCH,190.
MLA Paula Hobouchian, Maria,et al."Assessment of satellite precipitation estimates over the slopes of the subtropical Andes".ATMOSPHERIC RESEARCH 190(2017).
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