TY - JOUR
T1 - Contribution of dissolved organic carbon from a tropical river system to the Arabian Sea, southwestern India
AU - Nisha, Baby Krishnan
AU - Balakrishna, Keshava
AU - Udayashankar, Harikripa Narayana
AU - Arun, Kumar
AU - Manjunatha, Busnur Rachotappa
N1 - Publisher Copyright:
© 2022
PY - 2022/6/1
Y1 - 2022/6/1
N2 - The Payaswini-Chandragiri river system comprises two small tropical rivers originating in the Western Ghats (Patti Ghats reserve forest) of Peninsular India and contributes to an annual discharge of 4.40 km3 of water into the Arabian sea. This work mainly focuses on the fluxes of total dissolved organic carbon (DOC) from these rivers into the Arabian Sea. Quantifying the amount of terrestrial carbon fluxes into the ocean is important in better understanding long-term climate change because a significant portion of atmospheric carbon dioxide is getting locked up in the ocean sediments. However, DOC fluxes from the tropical southwest flowing rivers of India are sparse, especially in the backdrop of increased human activities since the onset of the Anthropocene. This study is an attempt to fill this gap. The DOC fluxes were measured between April 2016 and Dec 2017 on a seasonal basis. The flux of DOC in the post-monsoon season was 1.3 and 1.2 times higher than the monsoon and the pre-monsoon seasons, respectively. This riverine system contributes ∼0.4% of the total DOC flux received by the Arabian sea.
AB - The Payaswini-Chandragiri river system comprises two small tropical rivers originating in the Western Ghats (Patti Ghats reserve forest) of Peninsular India and contributes to an annual discharge of 4.40 km3 of water into the Arabian sea. This work mainly focuses on the fluxes of total dissolved organic carbon (DOC) from these rivers into the Arabian Sea. Quantifying the amount of terrestrial carbon fluxes into the ocean is important in better understanding long-term climate change because a significant portion of atmospheric carbon dioxide is getting locked up in the ocean sediments. However, DOC fluxes from the tropical southwest flowing rivers of India are sparse, especially in the backdrop of increased human activities since the onset of the Anthropocene. This study is an attempt to fill this gap. The DOC fluxes were measured between April 2016 and Dec 2017 on a seasonal basis. The flux of DOC in the post-monsoon season was 1.3 and 1.2 times higher than the monsoon and the pre-monsoon seasons, respectively. This riverine system contributes ∼0.4% of the total DOC flux received by the Arabian sea.
KW - Arabian sea
KW - DOC flux
KW - DOC yield
KW - Dissolved organic carbon
KW - Spatio-temporal variation
KW - Tropical river system
U2 - 10.1016/j.jaesx.2022.100085
DO - 10.1016/j.jaesx.2022.100085
M3 - Article
AN - SCOPUS:85125475332
SN - 2590-0560
VL - 7
JO - Journal of Asian Earth Sciences: X
JF - Journal of Asian Earth Sciences: X
M1 - 100085
ER -
