The Arctic Great Rivers Observatory (Arctic-GRO)

北极大河观测站（Arctic-GRO）

• 批准号: 1107774
• 负责人: Robert Holmes
• 金额: $ 263.33万
• 依托单位: Woodwell Climate Research Center, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1107774&HistoricalAwards=false
• 关键词: Arctic; Great; Rivers; Observatory; GRO

Arctic-GRO Non-Technical AbstractMassive northern rivers transport huge quantities of freshwater, carbon, and other compounds from the continents to the Arctic Ocean. The overarching scientific rationale for the Arctic Great Rivers Observatory (Arctic-GRO) is that large river hydrology and chemistry can be used to assess changes in fluxes that signal regional and pan-arctic change on the continents and that subsequently impact coastal and ocean chemistry, biology, and circulation. The watersheds of the six Arctic-GRO rivers are among the largest on Earth and combined cover 11,400,000 km2, more than half of the area that drains into the Arctic Ocean. Given that the biogeochemistry of rivers integrates processes occurring throughout their watersheds, Arctic-GRO?s systematic sampling of the downstream reaches of the Ob?, Yenisey, Lena, and Kolyma rivers in Siberia, and the Yukon and Mackenzie rivers in North America, provides a superb means for assessing environmental change in the Arctic. A variety of activities will be pursued to ensure that Arctic-GRO has substantial broader impacts. These activities will include 1) the maintenance and enhancement of a project website, www.arcticgreatrivers.org, 2) the production and widespread distribution of two multimedia videos about Arctic-GRO and the Arctic Observing Network, 3) an exchange between indigenous people in the Yukon and Lena river watersheds, in partnership with the Yukon River Inter-tribal Watershed Council, and 4) the expansion of a traveling art exhibition that tells the story of climate change and its impact in the Arctic, featuring artwork done by indigenous children from the Siberian and North American Arctic.

北冰洋-GRO非技术摘要北方多条河流将大量淡水、碳和其他化合物从大陆输送到北冰洋。北极大河观测站(北极大河观测站)的主要科学原理是，大河水文和化学可以用来评估通量的变化，这些变化标志着大陆上区域和泛北极的变化，并随后影响沿海和海洋的化学、生物和循环。北冰洋-格罗河的六条流域是地球上最大的流域之一，总面积为1140万平方公里，超过流入北冰洋的面积的一半。考虑到河流的生物地球化学综合了其整个流域发生的过程，北极-Gro？S对西伯利亚的Ob？河、Yenisey河、Lena河和Kolyma河下游以及北美的Yukon河和Mackenzie河的下游进行系统采样，为评估北极的环境变化提供了一个极好的手段。将开展各种活动，以确保北极--GRO产生更广泛的重大影响。这些活动将包括：1)维护和加强一个项目网站www.arcticGreat rivers.org；2)制作并广泛分发关于北极--GRO和北极观测网络的两个多媒体录像；3)与育空河部落间流域理事会合作，在育空河和勒纳河流域的土著人民之间开展交流；以及4)扩大巡回艺术展，讲述气候变化及其对北极的影响的故事，展出来自西伯利亚和北美北极的土著儿童所作的艺术品。

项目成果

Recent trends in the chemistry of major northern rivers signal widespread Arctic change

• DOI: 10.1038/s41561-023-01247-7
• 发表时间: 2023-08
• 期刊: Nature Geoscience
• 影响因子: 18.3
• 作者: S. Tank;J. McClelland;R. Spencer;A. Shiklomanov;A. Suslova;F. Moatar;R. Amon;L. Cooper;Greg Elias;V. Gordeev;C. Guay;T. Gurtovaya;L. Kosmenko;E. Mutter;B. Peterson;B. Peucker‐Ehrenbrink;P. Raymond;P. Schuster;L. Scott;R. Staples;R. Striegl;M. Tretiakov;A. Zhulidov;N. Zimov;S. Zimov;R. Holmes