Arctic Great Rivers Observatory II biogeochemistry and discharge data, 2012 - 2016

The PARTNERS and Arctic-GRO projects sample the biogeochemistry of the six largest rivers draining to the Arctic Ocean: the Yenisey, Ob', Lena, and Kolyma Rivers in Siberia and the Yukon and Mackenzie Rivers in North America. To the greatest extent possible, sample collection techniques are identical across rivers. Once collected, samples are returned to Woods Hole, MA, from where they are shipped to expert laboratories for analyses. The Arctic Great Rivers Observatory II (Arctic-GRO II; NSF-OPP-1107774) Project spanned the years between 2012 and 2016, and continues a sample collection effort that has been ongoing since 2004. On each river, samples were collected bi-monthly (six times per year), with target sampling months alternating between years. The Arctic Great Rivers Observatory III (Arctic-GRO III; NSF-OPP-1602615) Project (2017-2019) follows Arctic-GRO II. Full field and laboratory details for Arctic GRO II can be found in the "Sample Collection and Analyses" document on this page. For real-time updates of the Arctic GRO dataset, please visit www.arcticgreatrivers.org/data .PARTNERS与Arctic-GRO项目对注入北冰洋的六大河流的生物地球化学特征开展采样研究，这六大河流分别为西伯利亚的叶尼塞河（Yenisey）、鄂毕河（Ob'）、勒拿河（Lena）与科雷马河（Kolyma），以及北美的育空河（Yukon）和马更些河（Mackenzie）。各河流的样品采集技术尽可能保持统一。样品采集完成后，将被运回马萨诸塞州伍兹霍尔（Woods Hole, MA），再从该地发往专业实验室进行分析测试。北极大河观测站二期（Arctic Great Rivers Observatory II，简称Arctic-GRO II；项目编号NSF-OPP-1107774）实施于2012至2016年，延续了自2004年起持续推进的样品采集工作。该项目在每条河流设置每两月一次的采样频次（每年6次），各年度的目标采样月份交替轮换。北极大河观测站三期（Arctic Great Rivers Observatory III，简称Arctic-GRO III；项目编号NSF-OPP-1602615）实施于2017至2019年，承接于Arctic-GRO II项目。Arctic-GRO II项目完整的野外作业与实验室分析细节，可参见本页面内的《样品采集与分析》文档。如需获取北极大河数据集的实时更新信息，请访问www.arcticgreatrivers.org/data。