PROJECTION AND PREDICTION OF THE ANNUAL AND SEASONAL FUTURE REFERENCE EVAPOTRANSPIRATION TIME SCALES IN THE WEST OF IRAN UNDER RCP EMISSION SCENARIOS

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HEYDARI TASHEH KABOUD SHADIEH; KHOSHKHOU YUNES

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Journal: JOURNAL OF GEOGRAPHICAL SCIENCES Year:2019 | Volume:19 | Issue:53 Page(s): 157-176

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Title

PROJECTION AND PREDICTION OF THE ANNUAL AND SEASONAL FUTURE REFERENCE EVAPOTRANSPIRATION TIME SCALES IN THE WEST OF IRAN UNDER RCP EMISSION SCENARIOS

Author(s)

HEYDARI TASHEH KABOUD SHADIEH | KHOSHKHOU YUNES | Issue Writer Certificate

Keywords

REFERENCE EVAPOTRANSPIRATIONQ1

CLIMATE CHANGEQ1

GENERAL ATMOSPHERIC CIRCULATION MODELQ2

SDSM MODELQ1

WEST OF IRANQ2

Abstract

The aim of this research is the study of the CLIMATE CHANGE impacts on the seasonal and annual REFERENCE EVAPOTRANSPIRATION time scales in some selected stations located in the WEST OF IRAN. To this purpose, four stations including Sanandaj, Saghez, Khorramabad and Kermanshah synoptic stations with enough long-term data were selected and the CLIMATE CHANGE impact on the REFERENCE EVAPOTRANSPIRATION of these stations under two RCP2.6 and RCP8.5 scenarios in three future time periods including 2011-2040, 2041-2070 and 2071-2100 in comparison with the 1970-1999 base period was studied. The FAO-Penman-Montieth method was applied to calculating REFERENCE EVAPOTRANSPIRATION and the CanESM2 general circulation model and SDSM downscaling method were used to simulating future climate conditions under the climatic scenarios. The results showed that the mean REFERENCE EVAPOTRANSPIRATION in the annual and autumn and winter time scales in comparison to the base period will significantly increase for all of the studied stations under all of the scenarios and periods at the 0.01 confidence level. For spring season, the only significant change of the future period mean REFERENCE EVAPOTRANSPIRATION compared to the base period in the all of the studied area will be a significant increase at the 0.01 confidence level in the 2071-2100 period under the RCP8.5 scenario and for the summer season, this significant increasing rate will occur in the 2041-2070 and 2071-2100 periods under the RCP8.5 scenario. The overall results of this research showed that the highest increasing rate of the future periods in comparison with the base period for all of the seasonal and annual time periods and for all of the studied area will under RCP8.5 scenario and in the 2071-2100 time periods. by comparing the REFERENCE EVAPOTRANSPIRATION change rates between the different seasonal and annual scales, the results showed that the increasing rate of the mean REFERENCE EVAPOTRANSPIRATION at the WEST OF IRAN will be very remarkably in the autumn and winter seasons compared to the other time scales.

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APA: Copy

HEYDARI TASHEH KABOUD, SHADIEH, & KHOSHKHOU, YUNES. (2019). PROJECTION AND PREDICTION OF THE ANNUAL AND SEASONAL FUTURE REFERENCE EVAPOTRANSPIRATION TIME SCALES IN THE WEST OF IRAN UNDER RCP EMISSION SCENARIOS. JOURNAL OF GEOGRAPHICAL SCIENCES, 19(53 ), 157-176. SID. https://sid.ir/paper/102199/en

Vancouver: Copy

HEYDARI TASHEH KABOUD SHADIEH, KHOSHKHOU YUNES. PROJECTION AND PREDICTION OF THE ANNUAL AND SEASONAL FUTURE REFERENCE EVAPOTRANSPIRATION TIME SCALES IN THE WEST OF IRAN UNDER RCP EMISSION SCENARIOS. JOURNAL OF GEOGRAPHICAL SCIENCES[Internet]. 2019;19(53 ):157-176. Available from: https://sid.ir/paper/102199/en

IEEE: Copy

SHADIEH HEYDARI TASHEH KABOUD, and YUNES KHOSHKHOU, “PROJECTION AND PREDICTION OF THE ANNUAL AND SEASONAL FUTURE REFERENCE EVAPOTRANSPIRATION TIME SCALES IN THE WEST OF IRAN UNDER RCP EMISSION SCENARIOS,” JOURNAL OF GEOGRAPHICAL SCIENCES, vol. 19, no. 53 , pp. 157–176, 2019, [Online]. Available: https://sid.ir/paper/102199/en

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