Articles | Volume 10, issue 6
https://doi.org/10.5194/tc-10-2611-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-10-2611-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
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
Qilian Station for Glaciology and Ecological Environment, State Key
Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment
and Resources, Chinese Academy of Sciences, 730000 Lanzhou, China
University of Chinese Academy of Sciences, 100049 Beijing, China
Laboratory of Green Chemistry, Lappeenranta University of Technology,
Sammonkatu 12, 50130 Mikkeli, Finland
Shichang Kang
CORRESPONDING AUTHOR
Qilian Station for Glaciology and Ecological Environment, State Key
Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment
and Resources, Chinese Academy of Sciences, 730000 Lanzhou, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese
Academy of Sciences, 100101 Beijing, China
University of Chinese Academy of Sciences, 100049 Beijing, China
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, 100101 Beijing, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese
Academy of Sciences, 100101 Beijing, China
Yulan Zhang
Qilian Station for Glaciology and Ecological Environment, State Key
Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment
and Resources, Chinese Academy of Sciences, 730000 Lanzhou, China
Xiang Qin
Qilian Station for Glaciology and Ecological Environment, State Key
Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment
and Resources, Chinese Academy of Sciences, 730000 Lanzhou, China
Yang Li
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, 100101 Beijing, China
University of Chinese Academy of Sciences, 100049 Beijing, China
Xiaopeng Zhang
Qilian Station for Glaciology and Ecological Environment, State Key
Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment
and Resources, Chinese Academy of Sciences, 730000 Lanzhou, China
University of Chinese Academy of Sciences, 100049 Beijing, China
Zhaofu Hu
Qilian Station for Glaciology and Ecological Environment, State Key
Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment
and Resources, Chinese Academy of Sciences, 730000 Lanzhou, China
University of Chinese Academy of Sciences, 100049 Beijing, China
Pengfei Chen
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, 100101 Beijing, China
Xiaofei Li
Qilian Station for Glaciology and Ecological Environment, State Key
Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment
and Resources, Chinese Academy of Sciences, 730000 Lanzhou, China
Bin Qu
Laboratory of Green Chemistry, Lappeenranta University of Technology,
Sammonkatu 12, 50130 Mikkeli, Finland
Mika Sillanpää
Laboratory of Green Chemistry, Lappeenranta University of Technology,
Sammonkatu 12, 50130 Mikkeli, Finland
Department of Civil and Environmental Engineering, Florida
International University, Miami, FL 33174, USA
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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.
DOC release of Laohugou Glacier No. 12 was 192 kg km−2 yr−1, of which 43.2 % could be decomposed...
