[1]CHENG Yang,GUO Yan,QI Pengyun,et al.Analysis of Accuracy of GPM IMERGE Precipitation Data in Chaohu Basin[J].Research of Soil and Water Conservation,2020,27(05):188-193.
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Analysis of Accuracy of GPM IMERGE Precipitation Data in Chaohu Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 05
Page number:
188-193
Column:
目次
Public date:
2020-08-20
- Title:
- Analysis of Accuracy of GPM IMERGE Precipitation Data in Chaohu Basin
- Keywords:
- GPM; precipitation data; Chaohu Basin; accuracy evaluation
- CLC:
- P412.27; P426.6
- DOI:
- -
- Abstract:
- The precipitation products from January 2016 to February 2017 in Chaohu Basin were compared with the corresponding data measured with rain gauges from 120 meteorological stations to evaluate the applicability of three GPM IMERGE products(early-run, late-run and final-run). The results show that:(1)on the daily scale, the products show high linear correlation(R>0.78)and low absolute error(RMSE<8.9 mm), but exhibit overestimated(BIAS>9.52%); on the seasonal scale, the GPM data and the observed data show the highest linear correlation(R>0.8)and the highest absolute error(RMSE>13.8 mm)in summer, which indicates that abundant precipitation can improve the accuracy of GPM products but heavy rain also leads to large absolute error;(2)rain intensity has a certain degree of influence on the detection accuracy of GPM products; too weak(0.1 mm/d)or too heavy(50 mm/d)rainfall leads to the reduced detection capability;(3)the linear correlation in the middle of the basin is higher than the other area; the absolute error of the near-real-time products is large in the southwest of the basin, but more average as to GPM-F products; GPM data from most stations in the basin overestimate the precipitation;(4)no matter in autumn and winter or in heavy rainfall, the accuracy of GPM-F products is improved compared with that of near-real-time GPM-E and GPM-L products; but GPM-F product makes a more serious overestimation. Therefore, timeliness, time scale and rainfall intensity should be comprehensively considered when GPM products are used for basin precipitation analysis or hydrological simulation.
- References:
-
[1]Marzano F S, Cimini D, Montopoli M. Investigating precipitation microphysics using ground-based microwave remote sensors and disdrometer data[J]. Atmospheric Research, 2010,97(4):583-600.
[2]Immerzeel W W, Rutten M M, Droogers P. Spatial downscaling of TRMM precipitation using vegetative response on the Iberian Peninsula[J]. Remote Sensing of Environment, 2009,113(2):362-370.
[3]Villarini G, Krajewski W F. Empirically-based modeling of spatial sampling uncertainties associated with rainfall measurements by rain gauges[J]. Advances in Water Resources, 2008,31(7):1015-1023.
[4]吕洋,杨胜天,蔡明勇,等. TRMM卫星降水数据在雅鲁藏布江流域的适用性分析[J].自然资源学报,2013,28(8):1414-1425.
[5]唐国强,万玮,曾子悦,等.全球降水测量(GPM)计划及其最新进展综述[J].遥感技术与应用,2015,30(4):607-615.
[6]陈晓宏,钟睿达,王兆礼,等.新一代GPM IMERG卫星遥感降水数据在中国南方地区的精度及水文效用评估[J].水利学报,2017,48(10):1147-1156.
[7]Joyce R J, Janowiak J E, Arkin P A, et al. CMORPH:A method that produces global precipitation estimates from passive microwave and infrared data at high spatial and temporal resolution[J]. Journal of Hydrometeorology, 2004,5(3):487-503.
[8]Tian Y, Peters-Lidard C D, Adler R F, et al. Evaluation of GSMaP precipitation estimates over the contiguous United States[J]. Journal of Hydrometeorology, 2010,11(2):566-574.
[9]Su F, Hong Y, Lettenmaier D P. Evaluation of TRMM Multisatellite Precipitation Analysis(TMPA)and its utility in hydrologic prediction in the La Plata Basin[J]. Journal of Hydrometeorology, 2008,9(4):622-640.
[10]A. Y. Hou, R. K. Kakar, S. Neeck, et al. The Global Precipitation Measurement Mission[J]. Bulletin of the American Meteorological Society, 2014,95(5):701-722.
[11]金晓龙,邵华,张弛,等. GPM卫星降水数据在天山山区的适用性分析[J].自然资源学报,2016,31(12):2074-2085.
[12]杨雨蒙,杜鹃,程琳琳. TRMM卫星降雨数据在湖南省的精度和可靠性评定[J].水资源与水工程学报,2016,27(1):26-32.
[13]董国涛,樊东,杨胜天,等. GPM与TRMM降雨数据在黄河流域适用性分析[J].水土保持研究,2018,25(3):81-87.
[14]魏志明,岳官印,李家,等. GPM与TRMM降水数据在海河流域的精度对比研究[J].水土保持通报,2017,37(2):171-176.
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Last Update:
2020-08-25