Abstract:
The rapid retreatment of glaciers in the Tibetan Plateau has significant implications for water supply and ecological environment in the areas downstream. The snow and ice surface is characterized by large radiation and water vapor, strong wind speed, and significant variability, making it an essential component of plateau meteorology. However, due to the complex terrain and harsh climate, existing glacier meteorological monitoring is very sparse and lacks continuity, which limits our understanding of glacier meteorological change mechanisms, glacier energy exchange, and its hydrological impacts. This paper collects published meteorological observational data and scientific knowledge for glacier regions of the Tibetan Plateau, and organizes the findings based on variation patterns and spatial-temporal characteristics of glacier meteorological variables. Monitoring results over a total of 23 glaciers in the Tibetan Plateau and its surrounding areas have been released, glacier energy balance studies have been conducted at 20 glaciers. Existing energy balance studies have shown that net radiation is the primary energy source for glaciers in the Tibetan Plateau, accounting for an average of 75%. Ablation heat is the primary energy expenditure that accounts for an average of 60%, followed by evaporation/sublimation heat expenditure, which accounts for an average of 32%. However, due to limitations in the length of the data sequences and different periods, it is still difficult to comprehensively and objectively reveal spatiotemporal characteristics of glacier meteorology and energy balance in the Tibetan Plateau. In the future, it is necessary to strengthen the existing meteorological monitoring network, develop remote sensing data assimilation techniques, and conduct synchronous energy balance studies over typical glaciers in different regions of the Tibetan Plateau to better understand glacier energy balance and its response mechanism to climate change.