River discharge from the Russian Federation: An understanding of contemporary trends and their placement in a Holocene context

俄罗斯联邦的河流流量：了解当代趋势及其在全新世背景下的地位

• 批准号: 0230391
• 负责人: Laurence Smith
• 金额: $ 58.31万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-03-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0230391&HistoricalAwards=false
• 关键词: River; discharge; Russian; Federation; understanding

The proposed research seeks to identify the causes for increased discharge from Russian rivers to the Arctic Ocean over the past 65 years. The research will then attempt to place these trends into a longer-term (century to millennial time scale) context. The first objective will be approached through quantitative analyses of daily discharge records from major Russian rivers over the past century, starting with a "data rescue" of paper-format records. Securing the second objective will require modeling of paleo-discharge using publicly available tree ring data from well-distributed sites across Arctic Russia. The research will result in a substantially improved understanding of spatial and temporate runoff patterns across the world's largest Arctic landmass, and a historical context by which to evaluate contemporary trends. This understanding will help to answer questions about recent discharge increases, namely, "are they unprecedented?", "where is the water coming from?", and "what physical processes drive them?".

拟议的研究旨在找出过去 65 年来俄罗斯河流向北冰洋排放量增加的原因。 然后，研究将尝试将这些趋势置于更长期（一个世纪到一个千年的时间尺度）背景中。 第一个目标将通过对过去一个世纪俄罗斯主要河流的每日流量记录进行定量分析来实现，首先是纸质记录的“数据拯救”。 要实现第二个目标，需要使用来自俄罗斯北极地区分布广泛的地点的公开树木年轮数据对古排放进行建模。 该研究将大大提高对世界上最大的北极大陆的空间和时间径流模式的理解，以及评估当代趋势的历史背景。 这种理解将有助于回答有关最近排放量增加的问题，即“它们是前所未有的吗？”、“水从哪里来？”以及“什么物理过程驱动它们？”。