唐国强,洪阳

• 1:清华大学水利水电工程系

摘要(Abstract)：

星载降水雷达是太空中对降水观测最精确的仪器,目前星载降水雷达有TRMM PR、GPM DPR和Cloud Sat CPR,但对于三颗雷达产品的认识及应用还相对不足。在全球范围内对三颗雷达的样本进行了两两匹配,为确保匹配样本时空范围一致,样本间空间差异不大于2 km,时间差异不大于20 min。基于匹配样本首先对三颗雷达从多角度进行了交叉对比,最后将经过地面校正的TRMM PR和GPM DPR数据应用于研究青藏高原降水地形关系。结果表明:PR和DPR降水数据的空间分布和纬度条带分布基本相似;DPR相比于PR显著提升了对小降水的观测能力,CPR对小降水观测最准确,但是低估了中大降水,因而CPR在低纬度地区降水强度低于其他产品,但是在高纬度地区降水强度则高于其他产品;基于雷达降水应用表明,青藏高原大部分流域累积降水随着高程的增加指数下降,降水地形效应最显著的是喜马拉雅山脉南坡中部,降水呈现双峰模式。

关键词(KeyWords)： 降水;星载降水雷达;交叉对比;青藏高原;地形;全球水和能量循环;卫星微波和红外信号;主动微波传感器

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目“能源与水纽带关系及高效绿色利用关键技术”(2016YFE0102400)

作者(Author): 唐国强,洪阳

DOI: 10.13928/j.cnki.wrahe.2018.08.002

参考文献(References)：

• [1]KIDD C,HUFFMAN G.Global precipitation measurement[J].Meteorological applications,2011,18(3):334-353.
• [2]TANG Guoqiang,MA Yingzhao,LONG Di,et al.Evaluation of GPM Day-1 IMERG and TMPA Version-7 legacy products over China's mainland at multiple spatiotemporal scales[J].Journal of hydrology,2016,533:152-167.
• [3]HOU A Y,KAKAR R K,NEECK S,et al.The global precipitation measurement mission[J].Bulletin of the American Meteorological Society,2014,95(5):701-722.
• [4]HONG Y,GOCHIS D,CHENG J T,et al.Evaluation of PERSIANN-CCS rainfall measurement using the NAME Event Rain Gauge Network[J].Journal of hydrometeorology,2007,8(3):469-482.
• [5]HUFFMAN G J,BOLVIN D T,NELKIN E J,et al.The TRMM Multisatellite Precipitation Analysis(TMPA):Quasi-global,multiyear,combined-sensor precipitation estimates at fine scales[J].Journal of hydrometeorology,2007,8(1):38-55.
• [6]KIDD C,KNIVETON D R,TODD M C,et al.Satellite rainfall estimation using combined passive microwave and infrared algorithms[J].Journal of hydrometeorology,2003,4(6):1088-1104.
• [7]HUFFMAN G,BOLVIN D,BRAITHWAITE D,et al.NASA Global Precipitation Measurement(GPM)Integrated Multi-satellit E Retrievals for GPM(IMERG)[R].Greenbelt,USA:NASA/GSFC,2017.
• [8]KIDD C,LEVIZZANI V.Status of satellite precipitation retrievals[J].Hydrology and earth system sciences,2011,15(4):1109-1116.
• [9]TANG Guoqiang,LONG Di,HONG Yang,et al.Documentation of multifactorial relationships between precipitation and topography of the Tibetan Plateau using spaceborne precipitation radars[J].Remote sensing of environment,2018,208(2):82-96.
• [10]TANG Guoqiang,WEN Yixin,GAO Jinyu,et al.Similarities and differences between three coexisting spaceborne radars in global rainfall and snowfall estimation[J].Water resources research,2017,53(5):3835-3853.
• [11]KOZU T,KAWANISHI T,KUROIWA H,et al.Development of precipitation radar onboard the Tropical Rainfall Measuring Mission(TRMM)satellite[J].IEEE Transactions on geoscience and remote sensing,2001,39(1):102-116.
• [12]STEPHENS G,VANE D,BOAIN R,et al.The Cloudsat Mission and the a-Train[J].Bulletin of the American Meteorological Society,2002,83(12):1771-1790.
• [13]LIU Guosheng.Deriving snow cloud characteristics from Cloud Sat observations[J].Journal of geophysical research,2008,113.
• [14]KUMMEROW C,SIMPSON J,THIELE O,et al.The status of the tropical rainfall measuring mission(TRMM)after two years in orbit[J].Journal of applied meteorology,2000,39(12):1965-1982.
• [15]LIAO L,MENEGHINI R,IGUCHI T.Comparisons of rain rate and reflectivity factor derived from the TRMM precipitation radar and the WSR-88D over the Melbourne,Florida,site[J].Journal of atmospheric and oceanic technology,2001,18(12):1959-1974.
• [16]SCHUMACHER C,HOUZE R.Comparison of radar data from the TRMM satellite and Kwjalein oceanic validation site[J].Journal of applied meteorology,2000,39(12):2151-2164.
• [17]WEN Y X,KIRSTETTER P,HONG Y,et al.Evaluation of a method to enhance real-time,ground radar-based rainfall estimates using climatological profiles of reflectivity from space[J].Journal of hydrometeorology,2016,17(3):761-775.
• [18]CAO Q,HONG Y,CHEN S,et al.Snowfall detectability of NASA's cloudsat:The first cross-investigation of its 2C-snow-profile product and national multi-sensor mosaic QPE(NMQ)snowfall data[J].Progress in electromagnetics research,2014,148:55-61.
• [19]CAO Q,HONG Y,GOURLEY J,et al.Statistical and physical analysis of the vertical structure of precipitation in the mountainous west region of the united states using 11+years of spaceborne observations from TRMM precipitation radar[J].Journal of applied meteorology and climatology,2013,52(2):408-424.
• [20]ESPINOZA J,CHAVEZ S,RONCHAIL J,et al.Rainfall hotspots over the southern tropical Andes:Spatial distribution,rainfall intensity,and relations with large-scale atmospheric circulation[J].Water resources research,2015,51(5):3459-3475.
• [21]HAMADA A,TAKAYABU Y N,LIU C,et al.Weak linkage between the heaviest rainfall and tallest storms[J].Nature communication,2015,6:6213-6218.
• [22]HAYNES J,L'ECUYER T,STEPHENS G,et al.Rainfall retrieval over the ocean with spaceborne W-band radar[J].Journal of geophysical research,2009,114(8):1-10.
• [23]SMALLEY M,L'ECUYER T,LEBSOCK M,et al.A comparison of precipitation occurrence from the NCEP Stage IV QPE Product and the Cloud Sat Cloud Profiling Radar[J].Journal of hydrometeorology,2014,15(1):444-458.
• [24]CHEN SHENG,HONG YANG,KULIE M,et al.Comparison of snowfall estimates from the NASA Cloud Sat Cloud Profiling Radar and NOAA/NSSL Multi-Radar Multi-Sensor System[J].Journal of hydrology,2016,541:862-872.
• [25]HAMADA A,TAKAYABU Y.Improvements in detection of light precipitation with the Global Precipitation Measurement Dual-Frequency Precipitation Radar(GPM DPR)[J].Journal of atmospheric and oceanic technology,2016,33(4):653-667.
• [26]GAO JINYU,TANG GUOQIANG,HONG YANG.Similarities and improvements of GPM Dual-Frequency Precipitation Radar(DPR)upon TRMM Precipitation Radar(PR)in Global Precipitation Rate Estimation,Type Classification and Vertical Profiling[J].Remote sensing,2017,9(11):1142-1151.
• [27]BOOKHAGEN B,BURBANK D.Topography,relief,and TRMMderived rainfall variations along the Himalaya[J].Geophysical research letters,2006,33(8):1-5.
• [28]BOOKHAGEN B,STRECKER M.Orographic barriers,high-resolution TRMM rainfall,and relief variations along the eastern Andes[J].Geophysical research letters,2008,35(6):1-6.
• [29]SHRESTHA D,DESHAR R,NAKAMURA K.Characteristics of summer precipitation around the Western Ghats and the Myanmar West Coast[J].International journal of atmospheric sciences,2015,2015:1-10.
• [30]SHRESTHA D,SINGH P,NAKAMURA K.Spatiotemporal variation of rainfall over the central Himalayan region revealed by TRMM Precipitation Radar[J].Journal of geophysical research:atmospheres,2012,117(D22):140-148.
• [31]IGUCHI T,KOZU T,KWIATKOWSKI J,et al.Uncertainties in the Rain Profiling Algorithm for the TRMM Precipitation Radar[J].Journal of the Meteorological Society of Japan,2009,87A:1-30.
• [32]IGUCHI T,KOZU T,MENEGHINI R,et al.Rain-profiling algorithm for the TRMM precipitation radar[J].Journal of applied meteorology,2000,39(12):2038-2052.
• [33]WOOD N,L'ECUYER T,BLIVEN F,et al.Characterization of video disdrometer uncertainties and impacts on estimates of snowfall rate and radar reflectivity[J].Atmospheric measurement techniques,2013,6(12):3635-3648.
• [34]WOOD N,L'ECUYER T,HEYMSFIELD A,et al.Estimating snow microphysical properties using collocated multisensor observations[J].Journal of geophysical research:atmospheres,2014,119(14):8941-8961.
• [35]TANG GUOQIANG,BEHRANGI A,LONG DI,et al.Accounting for spatiotemporal errors of gauges:A critical step to evaluate gridded precipitation products[J].Journal of hydrology,2018,559:294-306.