Spatial and Temporal Assessment of Remotely Sensed Land Surface Temperature Variability in Afghanistan during 2000-2021

被引:10
|
作者
Nabizada, Ahmad Farid [1 ]
Rousta, Iman [1 ,2 ,3 ]
Dalvi, Marjan [4 ]
Olafsson, Haraldur [3 ,5 ]
Siedliska, Anna [6 ]
Baranowski, Piotr [6 ]
Krzyszczak, Jaromir [6 ]
机构
[1] Yazd Univ, Dept Geog, Yazd 8915818411, Iran
[2] Univ Iceland, Inst Atmospher Sci Weather & Climate, Bustadavegur 7, IS-108 Reykjavik, Iceland
[3] Iceland Meteorol Off IMO, Bustadavegur 7, IS-108 Reykjavik, Iceland
[4] Payame Noor Univ Rezvanshahr, Dept Geog & Urban Planning, Yazd 8941787675, Iran
[5] Univ Iceland, Inst Atmospher Sci Weather & Climate, Dept Phys, Bustadavegur 7, IS-108 Reykjavik, Iceland
[6] Polish Acad Sci, Inst Agrophys, Doswiadczalna 4, PL-20290 Lublin, Poland
关键词
land surface temperature; LST; Afghanistan; remote sensing; FLDAS; CHIRPS; MODIS; multiple regression; standardized anomaly analysis; NDVI TIME-SERIES; VEGETATION; CLIMATE; MODIS; DEGRADATION; CARBON; COVER; MODEL; LST;
D O I
10.3390/cli10070111
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
The dynamics of land surface temperature (LST) in Afghanistan in the period 2000-2021 were investigated, and the impact of the factors such as soil moisture, precipitation, and vegetation coverage on LST was assessed. The remotely sensed soil moisture data from Land Data Assimilation System (FLDAS), precipitation data from Climate Hazards Group Infra-Red Precipitation with Station (CHIRPS), and NDVI and LST from Moderate-Resolution Imaging Spectroradiometer (MODIS) were used. The correlations between these data were analyzed using the regression method. The result shows that the LST in Afghanistan has a slightly decreasing but insignificant trend during the study period (R = 0.2, p-value = 0.25), while vegetation coverage, precipitation, and soil moisture had an increasing trend. It was revealed that soil moisture has the highest impact on LST (R = -0.71, p-value = 0.0007), and the soil moisture, precipitation, and vegetation coverage explain almost 80% of spring (R-2 = 0.73) and summer (R-2 = 0.76) LST variability in Afghanistan. The LST variability analysis performed separately for Afghanistan's river subbasins shows that the LST of the Amu Darya subbasin had an upward trend in the study period, while for the Kabul subbasin, the trend was downward.
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页数:19
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