INVESTIGATION OF SUITABLE REGIONS DETERMINATION FOR DROUGHT MONITORING USING TRMM SATELLITE DATA (CASE STUDY: KHORASAN RAZAVI PROVINCE)

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GHAFOURIAN H.; SANAEINEJAD S.H.; DAVARY K.

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Journal: Journal of Water and Soil Year:2014 | Volume:28 | Issue:3 Page(s): 639-648

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Title

INVESTIGATION OF SUITABLE REGIONS DETERMINATION FOR DROUGHT MONITORING USING TRMM SATELLITE DATA (CASE STUDY: KHORASAN RAZAVI PROVINCE)

Author(s)

GHAFOURIAN H. | SANAEINEJAD S.H. | DAVARY K. | Issue Writer Certificate

Keywords

DROUGHT MONITORINGQ2

TRMM SATELLITEQ1

SPIQ1

KHORASAN RAZAVI PROVINCEQ1

CSIQ1

Abstract

Most of drought evaluation systems are based on precipitation data. However the quality of drought spatial variability is strongly influenced by short period of the measured data, inappropriate distribution of the weather stations and undesirable quality of the measurement networks. Therefore, it is necessary to recognize others reliable climatic data resources. Then to overpass the difficulty, after verification, the data is used to complete or substitute the existing data. Accordingly, in this research to monitor drought in KHORASAN RAZAVI PROVINCE using data from 10 synoptic stations and 107 rain gauges around the province, the monthly data of TRMM SATELLITE was validated. To do this, standardized precipitation index (SPI) of 1, 3, 6 and 12 months are calculated for a 13 years period (1998-2010) and compared with those of satellite data for the same period. The evaluation was measured by using CSI (%) (Critical Success Index) and R2 (Coefficient of Determination). The results showed that there was a very good consistency between earth borne and satellite data borne SPIs for all time scales except for 1 month time scale. Consistency value for all time scales over most regions of the province is more than 50%. Based on the results, for achieving the accuracy more than 60%, time scales of 1, 3, 6 and 12 months should be used as following: 1 months only for the northern regions, 3 months for all regions except the eastern part, 6 months for all regions except the northern part and 12 months for all regions except the northern region and central part of the province.

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APA: Copy

GHAFOURIAN, H., SANAEINEJAD, S.H., & DAVARY, K.. (2014). INVESTIGATION OF SUITABLE REGIONS DETERMINATION FOR DROUGHT MONITORING USING TRMM SATELLITE DATA (CASE STUDY: KHORASAN RAZAVI PROVINCE). JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), 28(3), 639-648. SID. https://sid.ir/paper/141927/en

Vancouver: Copy

GHAFOURIAN H., SANAEINEJAD S.H., DAVARY K.. INVESTIGATION OF SUITABLE REGIONS DETERMINATION FOR DROUGHT MONITORING USING TRMM SATELLITE DATA (CASE STUDY: KHORASAN RAZAVI PROVINCE). JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY)[Internet]. 2014;28(3):639-648. Available from: https://sid.ir/paper/141927/en

IEEE: Copy

H. GHAFOURIAN, S.H. SANAEINEJAD, and K. DAVARY, “INVESTIGATION OF SUITABLE REGIONS DETERMINATION FOR DROUGHT MONITORING USING TRMM SATELLITE DATA (CASE STUDY: KHORASAN RAZAVI PROVINCE),” JOURNAL OF WATER AND SOIL (AGRICULTURAL SCIENCES AND TECHNOLOGY), vol. 28, no. 3, pp. 639–648, 2014, [Online]. Available: https://sid.ir/paper/141927/en

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