Towards a Model of the Biogeochemistry of Large-Scale River Basins: An Application to the Pacific Rim

大型河流流域生物地球化学模型：在环太平洋地区的应用

• 批准号: 9524524
• 负责人: Jeffrey Richey
• 金额: $ 9.33万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-10-01 至 1997-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9524524&HistoricalAwards=false
• 关键词: Towards; Model; Biogeochemistry; Large; Scale

Rivers play a critical role in global systems because they transfer materials regionally and from land to the sea. The investigators developed a model for the Amazon river that describes and predicts river interactions with terrestrial and coastal systems. The model incorporates both large- and small-scale information in a unified database (e.g. satellite imaging to biochemical parameters). In the present research, the investigators will extend the model to the rivers of the Pacific rim. Rivers of the Pacific rim were chosen because of their complex, but under appreciated role in global biogeochemical cycles. The central question is: How do these poorly- understood rivers obtain, modify and transport their biogeochemical composition? To address the question, the PIs will 1) assemble an international team of investigators, 2) collect, analyze and disseminate samples and information for several Pacific rim rivers, and 3) develop a heuristic model of the operation and importance of these rivers.

河流在全球系统中发挥着至关重要的作用，因为它们将物质从陆地转移到海洋。 研究人员为亚马逊河开发了一个模型，描述和预测河流与陆地和沿海系统的相互作用。 该模型将大规模和小规模信息纳入统一的数据库（例如卫星成像到生化参数）。 在目前的研究中，研究人员将把模型扩展到太平洋沿岸的河流。 选择太平洋沿岸的河流是因为它们的复杂性，但在全球生物地球化学循环中的作用受到重视。 核心问题是：这些知之甚少的河流是如何获得、改变和输送它们的地球化学成分的？ 为了解决这个问题，PI将1）组建一个国际调查小组，2）收集，分析和传播几条太平洋沿岸河流的样本和信息，3）开发这些河流的运行和重要性的启发式模型。