Geostationary satellite observations of dynamic phytoplankton photophysiology
Geostationary satellite observations of dynamic phytoplankton photophysiology
复制标题
浮游植物动态光生理学的对地静止卫星观测
DOI:
10.1002/2014gl060246
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发表时间:
2014-07
影响因子:
5.2
通讯作者:
Yan, Jing
中科院分区:
文献类型:
--
作者:
O'Malley, Robert T.;Behrenfeld, Michael J.;Westberry, Toby K.;Milligan, Allen J.;Shang, Shaoling;Yan, Jing
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.
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影响因子:
3.7
作者:
Schrader PS;Milligan AJ;Behrenfeld MJ
通讯作者:
Behrenfeld MJ
影响因子:
4.5
作者:
S. Laney;Ricardo M Letelier;M. Abbott
通讯作者:
S. Laney;Ricardo M Letelier;M. Abbott
影响因子:
2.9
作者:
T. Ryan-Keogh;A. Macey;A. Cockshutt;C. M. Moore;T. Bibby
通讯作者:
T. Ryan-Keogh;A. Macey;A. Cockshutt;C. M. Moore;T. Bibby
影响因子:
5.2
作者:
Ricardo M Letelier;M. Abbott;D. Karl
通讯作者:
Ricardo M Letelier;M. Abbott;D. Karl
影响因子:
3.7
作者:
Garcia-Mendoza, E;Matthijs, HCP;Mur, LR
通讯作者:
Mur, LR