Geostationary satellite observations of dynamic phytoplankton photophysiology

CORC > 厦门大学 > 海洋环境－已发表论文

	Geostationary satellite observations of dynamic phytoplankton photophysiology
	O'Malley, Robert T. ; Behrenfeld, Michael J. ; Westberry, Toby K. ; Milligan, Allen J. ; Shang, Shaoling ; Yan, Jing ; Shang SL(商少凌) ; Yan J(闫静)
刊名	http://dx.doi.org/10.1002/2014GL060246
	2014
关键词	Fluorescence Geostationary satellites Population statistics Satellite imagery
英文摘要	Since June 2010, the Geostationary Ocean Color Imager (GOCI) has been collecting the first diurnally resolved satellite ocean measurements. Here GOCI retrievals of phytoplankton chlorophyll concentration and fluorescence are used to evaluate daily to seasonal changes in photophysiological properties. We focus on nonphotochemical quenching (NPQ) processes that protect phytoplankton from high light damage and cause strong diurnal cycles in fluorescence emission. This NPQ signal varies seasonally, with maxima in winter and minima in summer. Contrary to expectations from laboratory studies under constant light conditions, this pattern is highly consistent with an earlier conceptual model and recent field observations. The same seasonal cycle is registered in fluorescence data from the polar-orbiting Moderate Resolution Imaging Spectroradiometer Aqua satellite sensor. GOCI data reveal a strong correlation between mixed layer growth irradiance and fluorescence-derived phytoplankton photoacclimation state that can provide a path for mechanistically accounting for NPQ variability and, subsequently, retrieving information on iron stress in global phytoplankton populations. ? 2014. American Geophysical Union. All Rights Reserved.
语种	英语
出版者	Blackwell Publishing Ltd
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/88271]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	O'Malley, Robert T.,Behrenfeld, Michael J.,Westberry, Toby K.,et al. Geostationary satellite observations of dynamic phytoplankton photophysiology[J]. http://dx.doi.org/10.1002/2014GL060246,2014.
APA	O'Malley, Robert T..,Behrenfeld, Michael J..,Westberry, Toby K..,Milligan, Allen J..,Shang, Shaoling.,...&闫静.(2014).Geostationary satellite observations of dynamic phytoplankton photophysiology.http://dx.doi.org/10.1002/2014GL060246.
MLA	O'Malley, Robert T.,et al."Geostationary satellite observations of dynamic phytoplankton photophysiology".http://dx.doi.org/10.1002/2014GL060246 (2014).