Comparison of Observed Rainfall and PERSIANN and CMORPH Satellite Rainfall Data in Hourly and Daily Scale (Case Study: Shapoor Basin)

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zangeneh M.R.; GHAHRAMAN B.; FARIDHOSSEINI A.R.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2019 | Volume:14 | Issue:4 Page(s): 1-13

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Title

Comparison of Observed Rainfall and PERSIANN and CMORPH Satellite Rainfall Data in Hourly and Daily Scale (Case Study: Shapoor Basin)

Author(s)

zangeneh M.R. | GHAHRAMAN B. | FARIDHOSSEINI A.R. | Issue Writer Certificate

Keywords

Daily RainfallQ2

Satellite ProductsQ1

Remote SensingQ2

Abstract

The precipitation is an important parameter in hydrology cycle lack of data for which is amongst the biggest problems in climate analysis and hydrologic studies. Researcher has suggested the use of satellite images and Remote Sensing as practical solutions for predicting rainfall. This research focused on evaluation of precipitation data from PERSIANN and CMORPH satellite for Shapoor basin. For this purpose, the daily and hourly rainfall data of Shapour basin stations, for 28 precipitation events (hourly scale) and daily precipitation events in the period of 95-90 for stations located in the Kazeroun study area including Boushigan, Kazeroun, Chiti, Dashte Arjan and Pasghalat were used. Criteria of correlation coefficient, Root Mean Squared Error (RMSE), Probability of Detection (POD), False-Alarm Rate (FAR) and Critical Success Index (CSI) were calculated for both rainfall products. The result showed that PERSIANN and CMORPH satellite data are not accurate enough for hourly and daily scale. Also, comparing satellites and observed daily data of rainfall event showed that CMORPH data had a better correlation with observation data on the hourly scale (in daily scale correlation coefficients were 0. 78 and 0. 75 for CMORPH and PERSIANN, respectively). Also, the results showed that although the CMORPH model indicated a better correlation with observational data in the hourly scale, PERSIANN model had better results in detecting the number of rainy days (POD index).

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APA: Copy

zangeneh, M.R., GHAHRAMAN, B., & FARIDHOSSEINI, A.R.. (2019). Comparison of Observed Rainfall and PERSIANN and CMORPH Satellite Rainfall Data in Hourly and Daily Scale (Case Study: Shapoor Basin). IRAN-WATER RESOURCES RESEARCH, 14(4 ), 1-13. SID. https://sid.ir/paper/100079/en

Vancouver: Copy

zangeneh M.R., GHAHRAMAN B., FARIDHOSSEINI A.R.. Comparison of Observed Rainfall and PERSIANN and CMORPH Satellite Rainfall Data in Hourly and Daily Scale (Case Study: Shapoor Basin). IRAN-WATER RESOURCES RESEARCH[Internet]. 2019;14(4 ):1-13. Available from: https://sid.ir/paper/100079/en

IEEE: Copy

M.R. zangeneh, B. GHAHRAMAN, and A.R. FARIDHOSSEINI, “Comparison of Observed Rainfall and PERSIANN and CMORPH Satellite Rainfall Data in Hourly and Daily Scale (Case Study: Shapoor Basin),” IRAN-WATER RESOURCES RESEARCH, vol. 14, no. 4 , pp. 1–13, 2019, [Online]. Available: https://sid.ir/paper/100079/en

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