Robotic observations of dust storm enhancement of carbon biomass in the North Pacific
Robotic observations of dust storm enhancement of carbon biomass in the North Pacific
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DOI：
10.1126/science.1074961
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发表时间：
2002-10-25
期刊：
影响因子：
56.9
通讯作者：
Sherman, JT
中科院分区：
文献类型：
--
作者：
Bishop, JKB;Davis, RE;Sherman, JT
2001年4月10日，在亚北极北太平洋部署的两个自主机器人proling燕麦提供了从地表到地表以下1000米的每日和昼夜时间尺度的碳生物量变化的直接记录。八个月的实时数据记录了海洋生物对自然事件的反应，包括水文变化、多次风暴和2001年4月的沙尘事件。对上层海洋颗粒有机碳变异性的高频观测表明，在戈壁沙漠尘云通过后的两周内，混合层的生物量几乎翻了一番。沙尘暴后颗粒有机碳的增强和叶绿素利用效率的增加的时间演变表明，生物响应自然铁施肥的灰尘。
Two autonomous robotic pro ling oats deployed in the subarctic North Pacific on 10 April 2001 provided direct records of carbon biomass variability from surface to 1000 meters below surface at daily and diurnal time scales. Eight months of real-time data documented the marine biological response to natural events, including hydrographic changes, multiple storms, and the April 2001 dust event. High-frequency observations of upper ocean particulate organic carbon variability show a near doubling of biomass in the mixed layer over a 2-week period after the passage of a cloud of Gobi desert dust. The temporal evolution of particulate organic carbon enhancement and an increase in chlorophyll use efficiency after the dust storm suggest a biotic response to a natural iron fertilization by the dust.