Water and Constituent Fluxes Across the Eurasian Arctic: Evolving Land-Ocean Connections Over The Past 20,000 Years

该项目将继续美国-俄罗斯合作汇编泛北极排水系统数据。 将提供俄罗斯主要河流系统的数据，并将其数字化，用于水平衡模型。 该项目将通过更新到2000年的河流流量、气候和成分数据库来扩大目前的估计。 建模工作将延长时间范围，以模拟6000年至20,000年前选定时期的河流径流，河流路由和排放状况。 改善水和体质平衡将提供欧亚水文和物质循环的了解，了解欧亚大陆和大陆架之间的耦合，并了解北极和全球循环。 该项目将为了解北极水文对全球淡水平衡的作用提供基础。 平衡的变化是至关重要的，因为体积大（10%的世界淡水径流进入北冰洋）和它对海冰形成的作用是敏感的全球变暖。

This project will continue a U.S.-Russian collaboration to compile data on the pan-Arctic drainage system. Russian data for the major river systems will be made available, digitized, and used in a water balance model. The project will extend current estimates by updating the river discharge, climate, and constituent databases to the year 2000. The modeling effort will extend the time horizon to simulate river runoff, river routing, and discharge regimes at selected periods from 6000 to 20,000 years ago. The improved water and constitution balances will provide understanding of Eurasian hydrologic and material cycles, for understanding the coupling between the Eurasian land and shelf, and for understanding Arctic and global circulation. This project will provide the basis for understanding the role of the Arctic hydrologic on global freshwater balance. Changes in the balance are critically important because of the large volume (10% of the world's freshwater runoff goes to the Arctic Ocean) and its role on sea ice formation which is sensitive to global warming.