气候变化领域集成服务门户(CCPortal): Enhanced Winter Carbon Export Observed by BGC-Argo in the Northwest Pacific Ocean

CCPortal

DOI	10.1029/2020GL089847
	Enhanced Winter Carbon Export Observed by BGC-Argo in the Northwest Pacific Ocean
	Xing X.; Wells M.L.; Chen S.; Lin S.; Chai F.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	The winter- and spring-time mixed-layer pump (MLP) significantly augments the global carbon transport from the surface mixed layer to deeper waters when ephemeral surface phytoplankton blooms are repeatedly mixed to depth. Exploiting unusual 190 + daily BGC-Argo profiling measurements within a recirculation gyre, we show repetitive MLP episodes generating a January–March averaged particulate organic carbon (POC) export of ~110 mg C m−2 day−1 in the midlatitude (31°N) Northwest Pacific. Subsampling this dataset on a 5- or 10-day cycle yielded an order of magnitude less export, or even totally missed all the MLP events. The evidence here supports the need for new strategies if the BGC-Argo program is to adequately quantify ocean carbon cycling and its effects on biological systems. We propose that a handful of floats be tasked with daily profiling, and machine learning strategies be used to link these data with satellite derived measurements to estimate the synoptic-scale MLP export. ©2020. The Authors.
英文关键词	Learning systems; Carbon cycling; Carbon transport; Pacific ocean; Particulate organic carbon; Phytoplankton bloom; Profiling measurements; Recirculation gyre; Surface mixed layers; Organic carbon; Argo; carbon flux; ephemeral lake; export; gyre; machine learning; mixed layer; particulate organic carbon; phytoplankton; recirculating system; satellite altimetry; Pacific Ocean; Pacific Ocean (Northwest)
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169395
作者单位	State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Pilot National Laboratory for Marine Science and Technology, Qingdao, China; School of Marine Sciences, University of Maine, Orono, ME, United States
推荐引用方式 GB/T 7714	Xing X.,Wells M.L.,Chen S.,et al. Enhanced Winter Carbon Export Observed by BGC-Argo in the Northwest Pacific Ocean[J],2020,47(22).
APA	Xing X.,Wells M.L.,Chen S.,Lin S.,&Chai F..(2020).Enhanced Winter Carbon Export Observed by BGC-Argo in the Northwest Pacific Ocean.Geophysical Research Letters,47(22).
MLA	Xing X.,et al."Enhanced Winter Carbon Export Observed by BGC-Argo in the Northwest Pacific Ocean".Geophysical Research Letters 47.22(2020).