Assessment of Satellite Precipitation Data from TRMM 3B42RT V7 and CMORPH in Order to Estimate Precipitation in Gorganrood Basin-Iran

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ABDOLLAHI B.; HOSSEINI MOGHARI S.M.; EBRAHIMI K.

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Paper Information

Journal: IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING Year:2017 | Volume:11 | Issue:36 Page(s): 55-68

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Title

Assessment of Satellite Precipitation Data from TRMM 3B42RT V7 and CMORPH in Order to Estimate Precipitation in Gorganrood Basin-Iran

Author(s)

ABDOLLAHI B. | HOSSEINI MOGHARI S.M. | EBRAHIMI K. | Issue Writer Certificate

Keywords

Global Precipitation datasetsQ1

Probability of DetectionQ1

False Alarm RatioQ1

CMORPHQ1

TRMM 3B42RT V7Q1

Abstract

Due to the importance of precipitation data in different fields and lack of widespread and proper rain gauge networks, the precipitation data should be somehow estimated. Using satellite data is one of the best methods to estimate precipitation. However, it is necessary to evaluate the accuracy of such data before utilizing them. This study is an attempt to evaluate the accuracy of CMORPH and TRMM 3B42RT V7 precipitation data in Gorganrood Basin. For this purpose, the data of both satellites were compared with observation data from six stations (“ Tamer” , “ Ramian” , “ Bahalkeh-ye Dashli” , “ Gorgan Dam” , “ Fazel Abad” , “ Ghaffar Haji” ) within periods of 2003-2004 and 2006-2007. Correlation Coefficient, Mean Bias Error, Root Mean Square Error, CV (Coefficient of Variation) of Root Mean Square Error, Relation Bias criteria, Probability of Detection, False Alarm Ratio and Critical Success Index were calculated for both satellites. Results demonstrated that the satellite data in monthly and seasonal scale were more accurate than daily scale. The highest correlation between TRMM 3B42RT V7 and CMORPH data comparing to the observation data was related to the august precipitation in “ Ghaffar Haji” station which was 0. 93 and 0. 85, respectively. The results showed that both TRMM 3B42RT V7 and CMORPH satellites estimate precipitation lower than observational data. Also, Probability of Detection and Critical Success of CMORPH satellite were better than TRMM 3B42RT V7. However, False Alarm of TRMM 3B42RT V7 satellite was better.

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APA: Copy

ABDOLLAHI, B., HOSSEINI MOGHARI, S.M., & EBRAHIMI, K.. (2017). Assessment of Satellite Precipitation Data from TRMM 3B42RT V7 and CMORPH in Order to Estimate Precipitation in Gorganrood Basin-Iran. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, 11(36 ), 55-68. SID. https://sid.ir/paper/134723/en

Vancouver: Copy

ABDOLLAHI B., HOSSEINI MOGHARI S.M., EBRAHIMI K.. Assessment of Satellite Precipitation Data from TRMM 3B42RT V7 and CMORPH in Order to Estimate Precipitation in Gorganrood Basin-Iran. IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING[Internet]. 2017;11(36 ):55-68. Available from: https://sid.ir/paper/134723/en

IEEE: Copy

B. ABDOLLAHI, S.M. HOSSEINI MOGHARI, and K. EBRAHIMI, “Assessment of Satellite Precipitation Data from TRMM 3B42RT V7 and CMORPH in Order to Estimate Precipitation in Gorganrood Basin-Iran,” IRANIAN JOURNAL OF WATERSHED MANAGEMENT SCIENCE AND ENGINEERING, vol. 11, no. 36 , pp. 55–68, 2017, [Online]. Available: https://sid.ir/paper/134723/en

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