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Historical Landsat-Derived Water Surface Temperature for Three Large Alaska Rivers 1984-2022 This data package includes 17,014 pairs of raster geotiffs. Each pair is made up of two geotiff rasters derived from historical observations from Landsat satellites (04-09) over the Yukon, Kuskokwim, and Tanana rivers in Alaska. One raster reports estimated mid-day water surface temperature (ST) in degrees Celsius (deg_Cc). The second raster reports the surface temperature quality assessment (sST_QA_c) and provides the ST product uncertainty (also in degrees). The period of observation is May through October for the years 1984-2022. Categories: Data; Tags: Alaska, Earth science, Environment, GeoscientificInformation, Hydrology, All tags... Kuskokwim River, Landsat, Multispectral imaging, Remote sensing, River systems, Rivers/streams, Surface water features, Tanana River, USGS Science Data Catalog (SDC), Water Resources, Water temperature, Yukon River, Fewer tags Rasters of Observed Aufeis Deposits Within Rivers of the 1002 Area Based on Historical Landsat Imagery, 1985-2022 These data comprise 505 unique geospatial raster datasets which describe persistent river ice (aufeis) occurrence within floodplains of select rivers and creeks in the 1002 Area of the Arctic National Wildlife Refuge in northern Alaska. Each raster is derived from a historical observation made by one of five Landsat satellites. Surface reflectance in the green and shortwave infrared wavelengths are used to classify the aufeis occurrence within individual pixels. Pixel values of "1" correspond to aufeis presence while "0" corresponds to its absence. Rasters are generated from cloud and snow-filtered images captured between May and September for the years 1985-2022. Categories: Data; Tags: 1002 Area, ANWR, Alaska, Arctic National Wildlife Refuge, Aufeis, All tags... Canning River, Environment, Hulahula River, Hydrology, Ice Extent, Ice Growth/Melt, Image collections, InlandWaters, Jago River, Katakturuk River, Landsat, Marsh Creek, Multispectral imaging, North Slope, Okerokovik River, Okpilak River, Remote Sensing, River Ice, Sadlerochit River, Sadlerochit Spring, Staines River, Tamayariak River, USGS Science Data Catalog (SDC), Water Resources, Fewer tags