Articles | Volume 10, issue 6
The Cryosphere, 10, 2611–2621, 2016
https://doi.org/10.5194/tc-10-2611-2016
The Cryosphere, 10, 2611–2621, 2016
https://doi.org/10.5194/tc-10-2611-2016
Research article
07 Nov 2016
Research article | 07 Nov 2016

Concentration, sources and light absorption characteristics of dissolved organic carbon on a medium-sized valley glacier, northern Tibetan Plateau

Fangping Yan et al.

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Cited articles

Andreae, M. O. and Gelencsér, A.: Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols, Atmos. Chem. Phys., 6, 3131–3148, https://doi.org/10.5194/acp-6-3131-2006, 2006.
Anesio, A. M., Hodson, A. J., Fritz, A., Psenner, R., and Sattler, B.: High microbial activity on glaciers: importance to the global carbon cycle, Global Change Biol., 15, 955–960, 2009.
Anesio, A. M. and Laybourn-Parry, J.: Glaciers and Ice Sheets as a biome, Trends Ecol. Evol., 27, 219–225, 2012.
Antony, R., Mahalinganathan, K., Thamban, M., and Nair, S.: Organic Carbon in Antarctic Snow: Spatial Trends and Possible Sources, Environ. Sci. Technol., 45, 9944–9950, 2011.
Bhatia, M. P., Das, S. B., Longnecker, K., Charette, M. A., and Kujawinski, E. B.: Molecular characterization of dissolved organic matter associated with the Greenland Ice Sheet, Geochim. Cosmochim. Ac., 74, 3768–3784, 2010.
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Short summary
DOC release of Laohugou Glacier No. 12 was 192 kg km−2 yr−1, of which 43.2 % could be decomposed and return to atmosphere as CO2 within 28 days, producing positive feedback in the warming process and influencing downstream ecosystems. Radiative forcing of snow pit DOC was calculated to be 0.43 W m−2, accounting for about 10 % of the radiative forcing caused by BC. Therefore, DOC is also a light-absorbing agent in glacierized regions, influencing the albedo of glacier surface and glacier melting.