气候变化领域集成服务门户(CCPortal): Trends in Winter Light Environment Over the Arctic Ocean: A Perspective From Two Decades of Ocean Color Data

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DOI	10.1029/2020GL089037
	Trends in Winter Light Environment Over the Arctic Ocean: A Perspective From Two Decades of Ocean Color Data
	Jönsson B.F.; Sathyendranath S.; Platt T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	The last few decades have seen a decrease in Arctic ice cover, leading to changes in the structure and function of marine ecosystems. Yet sustained long-term observations of the marine environment are difficult to acquire. Harsh environments limit in situ measurements, while low light and high solar angles hinder ocean color observations from satellite. Here we use masks of valid-invalid ocean color pixels to diagnose ocean conditions and find strong positive trends in the Arctic open-water season close to the ice sheet, generally consistent with sea ice products from satellites. The North East Atlantic with no seasonal ice cover shows weaker, but significant trends indicative of decreasing winter cloud cover. Decreases in both sea ice and cloud cover will increase light availability at the sea surface and potentially enhance phytoplankton growth. Our method allows the winter light conditions to be studied at temporal and spatial scales relevant for phytoplankton dynamics. ©2020. The Authors.
英文关键词	Color; Ecosystems; Phytoplankton; Sea ice; Surface waters; In-situ measurement; Long term observations; Marine environment; North East Atlantic; Ocean color observations; Phytoplankton dynamics; Phytoplankton growth; Temporal and spatial scale; Oceanography; cloud cover; decadal variation; ice cover; light availability; marine environment; ocean color; phytoplankton; satellite altimetry; sea ice; sea surface; Arctic Ocean; Atlantic Ocean; Atlantic Ocean (East)
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/169892
作者单位	Plymouth Marine Laboratory, Plymouth, United Kingdom; National Centre for Earth Observation, Plymouth Marine Laboratory, Plymouth, United Kingdom
推荐引用方式 GB/T 7714	Jönsson B.F.,Sathyendranath S.,Platt T.. Trends in Winter Light Environment Over the Arctic Ocean: A Perspective From Two Decades of Ocean Color Data[J],2020,47(16).
APA	Jönsson B.F.,Sathyendranath S.,&Platt T..(2020).Trends in Winter Light Environment Over the Arctic Ocean: A Perspective From Two Decades of Ocean Color Data.Geophysical Research Letters,47(16).
MLA	Jönsson B.F.,et al."Trends in Winter Light Environment Over the Arctic Ocean: A Perspective From Two Decades of Ocean Color Data".Geophysical Research Letters 47.16(2020).