Alaska Community Ice Observations - 2019/2020

This dataset contains community based observations of ice thickness throughout the winter of 2019/2020. Observations are co-located within or near communities participating in the Fresh Eyes on Ice project, seeking to expand spatial coverage of ice observations and science literacy in classrooms around the state. This spatially distributed dataset provides valuable information about ice thickness through the winter of 2019 and 2020 on lakes and rivers around Alaska, including Big Lake near Venetie, Alaska, Brown's Slough in Bethel, Alaska, Noyes Slough in Fairbanks, Alaska, the Tanana River near Fairbanks, Alaska, Shageluk Lake near Shageluk, Alaska, Third Lake near Noatak, Alaska, Alexander Lake in Galena, Alaska, Smith Lake near Fairbanks, Alaska, Big Trail Lake near Fairbanks, Alaska, and Toolik Lake at Toolik Research Station, Alaska. These observations were made by drilling of 3 holes in an undisturbed location at the site by students, teachers, and community members, as well as members of the Fresh Eyes on Ice project. Snow depth was recorded at each of the holes prior to drilling.本数据集收录了2019/2020冬季全程由社区参与开展的冰厚观测数据。观测点位均位于冰面新视野（Fresh Eyes on Ice）项目参与社区的内部或周边，该项目旨在扩大全州范围内冰情观测的空间覆盖范围，并提升课堂科学素养。这套空间分布式数据集，可为2019至2020冬季阿拉斯加州周边湖泊与河流的冰厚分布提供极具价值的参考数据，涉及的观测点位包括：阿拉斯加州维内蒂附近的大湖（Big Lake）、贝瑟尔的布朗斯沼泽（Brown's Slough）、费尔班克斯的诺伊斯沼泽（Noyes Slough）与塔纳纳河（Tanana River）、沙盖卢克附近的沙盖卢克湖（Shageluk Lake）、诺阿塔克附近的第三湖（Third Lake）、加莱纳的亚历山大湖（Alexander Lake）、费尔班克斯附近的史密斯湖（Smith Lake）与大特雷尔湖（Big Trail Lake），以及图利克研究站的图利克湖（Toolik Lake）。本次观测由学生、教师、社区成员及冰面新视野（Fresh Eyes on Ice）项目成员完成，具体方式为在各点位的未受干扰区域钻取3个钻孔，并在钻孔前记录每个钻孔处的积雪深度。