当前位置: X-MOL 学术Geophys. Res. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A Decade of Annual Arctic DOC Export With Polar Surface Water in the East Greenland Current
Geophysical Research Letters ( IF 5.2 ) Pub Date : 2020-10-07 , DOI: 10.1029/2020gl089686
Rafael Gonçalves‐Araujo 1 , Colin A. Stedmon 1 , Laura Steur 2 , Christopher L. Osburn 3 , Mats A. Granskog 2
Affiliation  

The export of dissolved organic carbon (DOC) from the Arctic Ocean is expected to change due to warming and increased river runoff. Here we present a method to quantify DOC transport with the East Greenland Current combining synoptic and year‐round data (2009–2018). An algorithm based on quantitative and qualitative aspects of colored dissolved organic matter (CDOM) was developed to provide DOC estimates. Combined with mooring‐derived monthly Polar Surface Water (PSW) volume transports, we estimate DOC exports for the period from 2003–2017. For much of the period DOC exports have been reasonably constant at 46.8 (±6.2) Tg yr−1, while the reduction in PSW export in recent years has resulted in lower annual DOC exports (below 39 Tg C yr−1). We now have a technique to resolve seasonal and annual fluctuations in Arctic carbon export, offering a significant improvement over earlier bulk estimates and represents a baseline to detect future change.

中文翻译:

东部格陵兰洋流极地表水十年北极DOC年度出口量

由于变暖和河流径流增加,预计北冰洋的溶解性有机碳(DOC)出口将发生变化。在这里,我们提出了一种利用天气和全年数据(2009-2018年)结合东部格陵兰洋流来量化DOC传输的方法。开发了一种基于有色溶解有机物(CDOM)定量和定性方面的算法,以提供DOC估算值。结合系泊设备产生的月度极地水(PSW)每月运输量,我们估计2003-2017年期间的DOC出口量。在大部分时间里,DOC出口一直稳定在46.8(±6.2)Tg yr -1,而近年来PSW出口的减少导致年度DOC出口量降低(低于39 Tg C yr -1)。现在,我们有了一种技术来解决北极地区碳出口的季节性和年度波动,与先前的大量估算相比有了显着改善,并代表了检测未来变化的基准。
更新日期:2020-10-26
down
wechat
bug