Global Biogeochemical Flux Models

全球生物地球化学通量模型

• 批准号: 9314707
• 负责人: Jorge Sarmiento
• 金额: $ 55.55万
• 依托单位: Princeton University
• 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: 1994-02-01 至 1997-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314707&HistoricalAwards=false
• 关键词: Global; Biogeochemical; Flux; Models

9314707 SARMIENTO The overall objective of this work is summed up by the second of the two major JGOFS goals: "to develop a capability to predict on a global scale the response of oceanic biogeochemical processes to anthropogenic perturbations, in particular those related to climate change" (JGOFS International Science Plan, 1990). A major focus of this work is the carbon cycle processes that determine air-sea exchange of CO2. Achieving these goals requires models of biogeochemical processes as well as three-dimensional ocean general circulation models (OGCM's) of physical processes. The physical models are based on the primitive equation ocean model developed by Brian, (1969). The biogeochemical model development effort is divided into two parts. One focusses on the development of ecosystem models of the euphotic zone. To improve our understanding of the processes that control the surface nutrient content and how this is related to the carbon balance. The second effort focusses on transport of organic matter out of the euphotic zone as dissolved organic matter and particles, and remineralization of this in the deep ocean.

9314707 SARMIENTO 这项工作的总体目标由 JGOFS 两个主要目标中的第二个来概括：“发展在全球范围内预测海洋生物地球化学过程对人为扰动的响应的能力，特别是与气候变化相关的扰动” （JGOFS 国际科学计划，1990 年）。这项工作的一个主要焦点是决定二氧化碳的海气交换的碳循环过程。 实现这些目标需要生物地球化学过程模型以及物理过程的三维海洋环流模型（OGCM）。物理模型基于 Brian (1969) 开发的原始方程海洋模型。生物地球化学模型开发工作分为两部分。 一是重点关注真光带生态系统模型的开发。 提高我们对控制表面养分含量的过程及其与碳平衡的关系的理解。 第二项努力的重点是将有机物以溶解的有机物和颗粒的形式运出富光带，并在深海中再矿化。