In high-altitude alpine catchments, seasonal snowmelt dominates streamflow regimes. The Snowmelt-Runoff Model (SRM) quantifies daily runoff $(Q_{n+1})$ generated from snow cover depletion and liquid precipitation using a degree-day approach: $Q_{n+1} = \left[ c_{Sn} \cdot a_n \cdot (T_n + \Delta T_n) \cdot S_n + c_{Rn} \cdot P_n \right] \cdot \frac{A \cdot 10000}{86400} \cdot (1 - k_{n+1}) + Q_n \cdot k_{n+1}$ Where: $c_{Sn}, c_{Rn}:$ Runoff coefficients for snow cover and rain. $a_n:$ Degree-day factor $(\text{cm/}^\circ\text{C}\cdot\text{day}).$ $T_n:$ Adjusted daily mean temperature $(^\circ\text{C}).$ $S_n:$ Snow cover area fraction derived from remote sensing. $P_n:$ Measured precipitation $(\text{cm}).$ $A:$ Catchment zone area $(\text{km}^2).$ $k_{n+1}:$ Recession coefficient $(k = Q_{n+1} / Q_n).$ Run-of-the-river hydroelectric stations operating across Himalayan river basins (such as the Chenab, Sutlej, and Bhagirathi) rely heavily on snowmelt and glacier runoff ...