Assessment of Temperature, Precipitation, and Snow Cover at Different Altitudes of the Varzob River Basin in Tajikistan

The analysis of precipitation, snow cover, and temperature based on measured data is important for many applications in hydrology, meteorology, climatology, disaster management, human activities. In this study, we used long-term historical datasets from the Varzob River Basin (VRB) Tajikistan to evaluate trend magnitudinal changes temperature, cover area Anzob (upstream), Maykhura (midstream), Hushyori (downstream) regions VRB using original Mann–Kendall test, modified Sen’s slope Pettitt test. results revealed a decreasing mean monthly air at station upstream region all months except January, February, December between 1960 2018 1991 2018. each three regions, annual indicated clear upward trend. Seasonal precipitation large increasing January February 2018, but significant downward April upstream, midstream, downstream 1990 VRB, almost stations exhibited across periods, whereas showed non-significant 1990. ground that maximum increase occurs (178 cm) March (138 (54 cm). MODIS data, increased July while decrease was recorded September, November, 2001 2022. trend’s stable pattern observed March, May, August, October.