Tibetan Plateau shows unique stable carbon isotope characteristics of carbonaceous aerosol endmembers

Carbonaceous aerosols not only alter the atmospheric radiation budget, but also accelerate glacier melt by reducing the albedo of ice and snow surfaces. However, due to the heterogeneity of carbonaceous aerosols, the identification of their sources and the assessment of their environmental impact pose significant challenges. Carbon isotope (δ13C, Δ14C) technology is an effective tool for identifying the sources of carbonaceous aerosols.