Himachal Pradesh is a mountainous state in the Indian Himalayas, which spreads over an area of 55,000 km². The state has a unique geography, which influences the climatic variability of the state. In the present study, Satluj Basin has been considered as a study area. This basin experiences frequent floods, erratic distribution of rainfall and climatic variabilities, which causes extensive damage over the basin. Precipitation is one of the most crucial meteorological variables which determines the impact of climate change in the Himalayan landmass. For spatial and temporal variation of precipitation, long-term precipitation data of 113 years (1901–2013) was utilized. Further, non-parametric, i.e. Mann–Kendall (MK) and modified Mann–Kendall (MMK) tests, were performed to check possible trends and Sen's slope estimator (SSE) test was used for determining the change in magnitude over the basin at 95% level of significance. The entire analysis was performed on a monthly, annual and seasonal (pre-monsoon, monsoon, post-monsoon and winter) basis. In this study, it was noticed that both positive and negative trends are detected in monthly and seasonal time series. It was also noticed that similar results have been estimated in MK, MMK and Sen's slope estimator tests during 1901–2013.

喜马al尔邦是印度喜马拉雅山的山区州，分布于55,000 km ²。该州具有独特的地理位置，这会影响该州的气候变化。在本研究中，Satluj盆地已被视为研究区域。该流域经常发生洪水，降雨分布不均，气候多变性，对流域造成广泛破坏。降水是最关键的气象变量之一，它决定了气候变化对喜马拉雅陆地的影响。对于降水的时空变化，利用了113年（1901-2013年）的长期降水数据。此外，还进行了非参数测试，即曼恩·肯德尔（MK）和修正的曼恩·肯德尔（MMK）检验，以检查可能的趋势，并使用Sen斜率估算器（SSE）检验来确定95处盆地的幅度变化。显着性水平百分比。整个分析是按月，年度和季节（季风前，季风，季风后和冬季）进行的。在这项研究中，注意到在月度和季节时间序列中都检测到了正趋势和负趋势。还应注意的是，在1901年至2013年期间，MK，MMK和Sen的斜率估计器测试也估计出了类似的结果。