Classified channel masks of portions of 13 rivers across the Arctic and areas of floodplain erosion and accretion ranging from 1973 to 2016

This dataset provides classified river channel masks of 14 reaches of 13 Arctic rivers, as well as masks showing areas of erosion and accretion along the rivers of specified time periods. These rivers include the: Colville River, Alaska; Indigirka River, Russia; Kolyma River, Russia; Koyukuk River, Alaska; Lena River, Alaska; Noatak River, Alaska; Ob River, Russia; Pechora River, Russia; Selawik River, Alaska; Taz River, Russia; Yana River, Russia; Yenisei River, Russia;, and the Yukon River, Alaska. The dataset was generated from a total of 114 images including landsat, higher resolution satellite imagery, and aerial photography over time periods ranging from the 1970s and 2016. A full list of the image dates, row and path (for Landsat), and pixel resolutions is provided in the dataset. These masks provide the source data for the erosion, accretion, and planform measurement provided in the companion dataset: ess-dive-017d706d9816228-20191022T025338246.

本数据集涵盖13条北极河流共14个河段的分类河道掩码，同时包含特定时间段内这些河流沿岸侵蚀区域与淤积区域的掩码。涉及的河流包括：阿拉斯加科尔维尔河（Colville River）、俄罗斯因迪吉尔卡河（Indigirka River）、俄罗斯科雷马河（Kolyma River）、阿拉斯加科尤库克河（Koyukuk River）、阿拉斯加勒拿河（Lena River）、阿拉斯加诺阿塔克河（Noatak River）、俄罗斯鄂毕河（Ob River）、俄罗斯伯朝拉河（Pechora River）、阿拉斯加塞拉威克河（Selawik River）、俄罗斯塔兹河（Taz River）、俄罗斯亚纳河（Yana River）、俄罗斯叶尼塞河（Yenisei River），以及阿拉斯加育空河（Yukon River）。本数据集总计基于114幅影像生成，影像类型涵盖陆地卫星（Landsat）影像、更高分辨率卫星影像以及航空摄影，时间跨度覆盖1970年代至2016年。数据集中提供了所有影像的拍摄日期、（陆地卫星影像的）行号与轨道号以及像素分辨率的完整列表。这些掩码可为配套数据集ess-dive-017d706d9816228-20191022T025338246中提供的侵蚀、淤积及河道平面形态测量结果提供源数据。