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.

大量的北部河流将大量的淡水、碳和其他化合物从大陆输送到北冰洋。北极大河观测站（Arctic- gro）的首要科学依据是，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的区域和泛北极变化，并随后影响沿海和海洋化学、生物学和环流。6条北极- gro河流的流域是地球上最大的河流之一，总面积达1140万平方公里，超过了流入北冰洋面积的一半。鉴于河流的生物地球化学综合了整个流域发生的过程，Arctic-GRO？我们系统地采样了鄂巴河下游河段。西伯利亚的叶尼塞河、莱拿河和科雷马河，以及北美的育空河和麦肯齐河，为评估北极的环境变化提供了极好的手段。将开展各种活动，以确保Arctic-GRO产生实质性的更广泛的影响。这些活动将包括：1)维护和加强一个项目网站www.arcticgreatrivers.org; 2)制作和广泛分发关于Arctic- gro和北极观测网的两个多媒体录象带；3)与育空河部落间流域理事会合作，在育空河和勒拿河流域的土著人民之间进行交流；4)扩大一个巡回艺术展，讲述气候变化的故事及其对北极的影响，展出来自西伯利亚和北美北极地区的土著儿童的艺术作品。

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