Evaluation of Agricultural Drought Characteristics in Iran's Central Plateau Catchment using GRACE Satellite

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NEMATI AHMAD; GHOREISHI NAJAFABADI SEYED HOSSEIN; JOODAKI GHOLAMREZA; MOUSAVI NADOUSHANI SEYED SAEID

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Journal: Iranian Journal of Soil and Water Research Year:2019 | Volume:50 | Issue:2 Page(s): 313-327

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Title

Evaluation of Agricultural Drought Characteristics in Iran's Central Plateau Catchment using GRACE Satellite

Author(s)

NEMATI AHMAD | GHOREISHI NAJAFABADI SEYED HOSSEIN | JOODAKI GHOLAMREZA | MOUSAVI NADOUSHANI SEYED SAEID | Issue Writer Certificate

Keywords

Total Storage Deficiency Index (TSDI)Q1

Standard Precipitation Evapotranspiration Index (SPEI)Q1

Spatiaotemporal Drought DistributionQ1

Severity and Duration of DroughtQ1

Abstract

Determining the onset, Severity and Duration of Drought provides vital information for managing water resources to decision makers. The computation of these parameters requires integrated data on soil moisture content and groundwater level. The installation and utilization of a regular network system for recording these data in massive water basins is very costly. In the central plateau catchment of Iran where the average rainfall is very small, the required observational data with suitable spatial distribution are not available. In this paper, the frequency, duration and severity of agricultural droughts in this catchment are determined by the Total Storage Deficit Index (TSDI) obtained from the GRACE satellite based-data. Then, due to the heterogeneous distribution of meteorological stations in the studied area, 142 stations were selected and the MicroMet interpolation model and Kriging geostatistical method were used to fit a homogenous network on the meteorological data at the catchment area. Finally, the Standardized Precipitation Evapotranspiration Index (SPEI) was calculated with timescales of 3, 6 and 12 months to be compared with the results of TSDI. Based on these calculations, the studied area has experienced several agricultural droughts with different severity and extent that the spatio-temporal distribution and drought severity obtained from both indices are in good agreement with each other.

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APA: Copy

NEMATI, AHMAD, GHOREISHI NAJAFABADI, SEYED HOSSEIN, JOODAKI, GHOLAMREZA, & MOUSAVI NADOUSHANI, SEYED SAEID. (2019). Evaluation of Agricultural Drought Characteristics in Iran's Central Plateau Catchment using GRACE Satellite. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 50(2 ), 313-327. SID. https://sid.ir/paper/225691/en

Vancouver: Copy

NEMATI AHMAD, GHOREISHI NAJAFABADI SEYED HOSSEIN, JOODAKI GHOLAMREZA, MOUSAVI NADOUSHANI SEYED SAEID. Evaluation of Agricultural Drought Characteristics in Iran's Central Plateau Catchment using GRACE Satellite. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2019;50(2 ):313-327. Available from: https://sid.ir/paper/225691/en

IEEE: Copy

AHMAD NEMATI, SEYED HOSSEIN GHOREISHI NAJAFABADI, GHOLAMREZA JOODAKI, and SEYED SAEID MOUSAVI NADOUSHANI, “Evaluation of Agricultural Drought Characteristics in Iran's Central Plateau Catchment using GRACE Satellite,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 50, no. 2 , pp. 313–327, 2019, [Online]. Available: https://sid.ir/paper/225691/en

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