Continuation of Time-Series Particle Flux Measurements in the Sargasso Sea

马尾藻海中时间序列粒子通量测量的延续

• 批准号: 9017114
• 负责人: Werner Deuser
• 金额: $ 63.41万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1995-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9017114&HistoricalAwards=false
• 关键词: Continuation; Time; Series; Particle; Flux

The value of time-series measurements for the understanding of natural processes, the assessment of anthropogenic effects on the environment, and the entire complex of issues referred to as "Global Change" is increasingly appreciated. This proposal requests funds to continue time-series sediment trapping at depths of 500, 1500, and 3200 m in the sargasso Sea for three years. At this time, the 3200 m series extends over twelve and a half years. It is by far the longest such series in existence, and its sampling site has been designated the JGOFS time-series site in the North Atlantic. Together with the hydrographic time series at nearby Station "S" and with the growing number of JGOFS measurements, it provides an unequaled data base on physical, chemical and biological variables in the open ocean. The series has demonstrated the existence of temporal variability in the deep ocean, revealed the efficiency of processes removing materials from the surface ocean, and the effects of those processes on the chemistry and biology of the deep ocean. Continuation of the Bermuda series will be an efficient route towards identifying the forcing functions of carbon flux to the deep ocean, assessing decade-scale trends in the efficacy of the "biological pump," and monitoring transport of antropogenic components to the deep ocean.//

时间序列测量对于了解自然过程、评估人为对环境的影响以及被称为“全球变化”的整个复杂问题的价值日益得到重视。该提案要求资金继续在马尾藻海500、1500和3200米的深度进行为期三年的时间序列沉积物捕获。在这个时候，3200米系列延伸超过12年半。它是目前存在的最长的时间序列，它的采样地点被指定为北大西洋的JGOFS时间序列地点。加上附近“S”站的水文时间序列和越来越多的JGOFS测量，它提供了一个关于公海物理、化学和生物变量的无与伦比的数据基础。该系列资料证明了深海中存在着时间变化，揭示了从表层海洋移走物质的过程的效率，以及这些过程对深海化学和生物学的影响。//继续进行百慕大系列将是确定流向深海的碳通量的强迫功能、评估“生物泵”功效的十年尺度趋势和监测向深海输送的人为成分的有效途径