ArticleProceedings of the National Academy of Sciences of the United States of America2023
Black carbon aerosols over Indian Ocean have unique source fingerprint and optical characteristics during monsoon season.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Black Carbon-Attributable Mortality and Its Disparity Across the Population Subgroups in India.GeoHealth · 2026Article
- Substantial reductions in black carbon from both fossil fuels and biomass burning during China's Clean Air Action.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
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5 authors.
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Abstract
Effects of aerosols such as black carbon (BC) on climate and buildup of the monsoon over the Indian Ocean are insufficiently quantified. Uncertain contributions from various natural and anthropogenic sources impede our understanding. Here, we use observations over 5 y of BC and its isotopes at a remote island observatory in northern Indian Ocean to constrain loadings and sources during little-studied monsoon season. Carbon-14 data show a highly variable yet largely fossil (65 ± 15%) source mixture. Combining carbon-14 with carbon-13 reveals the impact of African savanna burning, which occasionally approach 50% (48 ± 9%) of the total BC loadings. The BC mass-absorption cross-section for this regime is 7.6 ± 2.6 m
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