气候变化领域集成服务门户(CCPortal): Effect of sampling bias on global estimates of ocean carbon export

CCPortal

DOI	10.1088/1748-9326/ad1e7f
	Effect of sampling bias on global estimates of ocean carbon export
	Henson, Stephanie; Bisson, Kelsey; Hammond, Matthew L.; Martin, Adrian; Mouw, Colleen; Yool, Andrew
发表日期	2024
ISSN	1748-9326
起始页码	19
结束页码	2
卷号	19 期号:2
英文摘要	Shipboard sampling of ocean biogeochemical properties is necessarily limited by logistical and practical constraints. As a result, the majority of observations are obtained for the spring/summer period and in regions relatively accessible from a major port. This limitation may bias the conceptual understanding we have of the spatial and seasonal variability in important components of the Earth system. Here we examine the influence of sampling bias on global estimates of carbon export flux by sub-sampling a biogeochemical model to simulate real, realistic and random sampling. We find that both the sparseness and the 'clumpy' character of shipboard flux observations generate errors in estimates of globally extrapolated export flux of up to similar to +/- 20%. The use of autonomous technologies, such as the Biogeochemical-Argo network, will reduce the uncertainty in global flux estimates to similar to +/- 3% by both increasing the sample size and reducing clumpiness in the spatial distribution of observations. Nevertheless, determining the climate change-driven trend in global export flux may be hampered due to the uncertainty introduced by interannual variability in sampling patterns.
英文关键词	carbon export; Biogeochemical-Argo; thorium-derived flux; data sparsity; sampling strategy
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001152925400001
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/293390
作者单位	University of Southampton; NERC National Oceanography Centre; Oregon State University; National Aeronautics & Space Administration (NASA); Mary W. Jackson NASA Headquarters; Universidad Catolica del Norte; Universidad Catolica del Norte; University of Rhode Island
推荐引用方式 GB/T 7714	Henson, Stephanie,Bisson, Kelsey,Hammond, Matthew L.,et al. Effect of sampling bias on global estimates of ocean carbon export[J],2024,19(2).
APA	Henson, Stephanie,Bisson, Kelsey,Hammond, Matthew L.,Martin, Adrian,Mouw, Colleen,&Yool, Andrew.(2024).Effect of sampling bias on global estimates of ocean carbon export.ENVIRONMENTAL RESEARCH LETTERS,19(2).
MLA	Henson, Stephanie,et al."Effect of sampling bias on global estimates of ocean carbon export".ENVIRONMENTAL RESEARCH LETTERS 19.2(2024).