Management and Scientific Services in Support of the U.S. JGOFS Arabian Sea Process Study

支持美国 JGOFS 阿拉伯海过程研究的管理和科学服务

• 批准号: 9310577
• 负责人: Sharon Smith
• 金额: $ 299.72万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-01 至 1998-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9310577&HistoricalAwards=false
• 关键词: Management; Scientific; Services; Support; U.S.

Smith 9310577 Management and Scientific Services in Support of the U.S. JGOFS Arabian Sea Process Study Some of the strongest atmospheric forcing of oceanic properties anywhere on our planet is observed in the Arabian Sea where seasonally reversing monsoon winds drive fast-flowing, vertically extensive currents, complex eddy fields, broad-scale, open ocean upwelling, coastal upwelling and pronounced mixed-layer deepening. Cycles of production in this region are driven by the ocean's response to monsoon winds and therefore exhibit large and regular seasonal oscillations, During the southwest monsoon season (June-September inclusive), primary productivity is maximal owing to strong winds which not only cause the uplift of deep water rich in nutrients, but also deliver aeolian dust to the surface layer of this tropical ocean. During the northeast monsoon (October-November inclusive) and intermonsoon periods, primary productivity is markedly reduced. A major rationale for the choice of the Arabian Sea as a process study site is the strong and seasonally reversing physical forcing of the region. It is safe to say no investigator working in this program will be able to properly interpret her/his data without understanding the physical regime. For an expedition of the scale of the U.S. JGOFS Arabian Sea Process Study, 9 cruises spread over an annual monsoon cycle, it is necessary to provide a consistent set of measurements of the background density, tracer and nutrient fields. These data are crucial for the interpretation and resolution of the seasonally changing, background mean flows which are the setting for the more specialized pelagic and benthic studies of the expedition. These measurements are also needed to estimate the transport of nutrients into the euphotic zone and to provide insight into the chemical constraints placed upon physiological processes. This project will provide the basic, background observational program which will include ship- based measurement of depth-resolved temperature, salinity, nutrients, oxygen, and currents. The methods to be employed will be standardized and consistent throughout the expedition, using protocols already established either by U.S. JGOFS or U.S. WOCE or protocols agreed upon by all investigators prior to the beginning of the expedition. ***

Smith 9310577在阿拉伯海中观察到了我们星球上任何地方的最强大气强迫海洋特性的大气强迫，在阿拉伯海，季风逆转速度快速流动，垂直延伸的潮流，复杂的埃迪田地，宽阔的海洋上升，沿海地区的综合型和copteration coptern coptern and Welling and Welling Welling Welling Welling Welling Welling and Welling Welling。 Cycles of production in this region are driven by the ocean's response to monsoon winds and therefore exhibit large and regular seasonal oscillations, During the southwest monsoon season (June-September inclusive), primary productivity is maximal owing to strong winds which not only cause the uplift of deep water rich in nutrients, but also deliver aeolian dust to the surface layer of this tropical ocean. 在东北季风（10月至十月）和月月期间，主要生产率明显降低。 选择阿拉伯海作为过程研究地点的主要理由是该地区的身体强迫强大而季节性的逆转。 可以肯定地说，没有在此计划中工作的调查员能够在不了解身体状态的情况下正确解释其数据。 为了进行美国JGOFS Arabian Sea Process研究规模的探险，在每年的季风周期中进行了9次巡航，有必要提供一系列一致的测量背景密度，示踪剂和营养领域。 这些数据对于季节性变化的解释和解决至关重要，背景平均流量是对探险队更专业的全叶和底栖研究的设置。 还需要进行这些测量，以估计养分向舒适区的运输，并洞悉对生理过程的化学限制。 该项目将提供基本的背景观察计划，其中包括基于船舶的深度分辨温度，盐度，养分，氧气和电流的测量。 使用美国JGOF或美国WOCE已建立的协议或所有调查人员在探险开始之前就已经建立的协议，将在整个探险中进行标准化和一致。 ***