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Annual End-of-Summer Snow Cover on Glaciers in Alaska and Northwest Canada This dataset contains observations of the distribution of end-of-summer snow cover on approximately 3000 glaciers across Alaska and Northwest Canada. The data are provided as: (1) GeoTIFF rasters indicating the spatial extent of end-of-summer snow cover on each glacier's surface in each year (one raster per glacier per year), and (2) yearly tables with the equilibrium line altitude and the accumulation area ratio of the glaciers derived from the snow cover extent geotiffs. Snow cover was identified in Sentinel-2 imagery using a random forest algorithm trained with a manually-created validation dataset. A series of post-processing steps were used to infill missing data from terrain shadowing and cloud cover, and... Categories: Data; Tags: Accumulation Zones, Alaska, Canada, Cryosphere, GeoscientificInformation, All tags... Glacier Mass Balance, Glaciers, Glaciology, Glaciology, Snow, Snow and ice cover, USGS Science Data Catalog (SDC), Water Resources, Fewer tags Computed Streamflow Using Satellite Data for Selected Rivers in Alaska This dataset provides computed remotely-sensed streamflows (RSQ) at river reaches of selected rivers in Alaska. We used the relation between water-surface elevation data derived from satellite altimetry and dynamic surface water extent data derived from LANDSAT and Sentinel imagery data with the Modified Optimized Manning Method Algorithm (MOMMA) to compute remotely sensed streamflows. Data are organized in ZIP packages named for each river reach. Reach-specific details are provided in a README file included in each river reach ZIP package. Depending on the input data available for specific reaches, we used different workflows to estimate river reach width and process the data from river reaches. Each workflow... Categories: Data, Data Release - Revised; Tags: Alaska, Altimetry measurement, Canning River, Colville River, Copper River, All tags... Elevation, Holitna River, Hydrology, InlandWaters, Innoko River, Kantishna River, Knik River, Koyukuk River, Kuskokwim River, Multispectral imaging, Nushagak River, Porcupine River, Remote Sensing, Remote sensing, Streamflow, Susitna River, Tanana River, USGS Science Data Catalog (SDC), Water Resources, Yukon River, Fewer tags