The dataset includes field measurements and laboratory analysis of water-quality data collected by trained community technicians across the Yukon River Basin in Alaska and Canada and Yukon River Inter-Tribal Watershed Council staff and analyzed at the U.S. Geological Survey National Research Program laboratories in Boulder, CO.

The dataset includes field measurements and laboratory analysis of water-quality data collected by trained community technicians across the Yukon River Basin in Alaska and Canada and Yukon River Inter-Tribal Watershed Council staff and analyzed at the U.S. Geological Survey National Research Program laboratories in Boulder, CO.

This data set includes 15-minute interval data on stream temperature, stage, and discharge from low-order streams in the Yukon River Basin in interior Alaska, collected during the summer months. The depth of the water and temperature were determined using a combined pressure transducer and temperature sensor that was deployed through the summer months. Different sensors were used in each stream and year, so a file is included detailing the stage and temperature accuracy for each year and stream. Discharge was derived from the stage data by creating a rating curve relating stage to discharge measured during site visits.

This data release contains measurements from continuous monitors of stream temperature, groundwater temperature, and well water levels, and discrete measurements of discharge and stream shading.

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.

Water quality tabular dataset provided by the USGS National Water Quality Laboratory in Denver, Colorado.

This data release contains inputs for and outputs from hydrologic simulations for the Alaska (AK) domain using the Precipitation Runoff Modeling System (PRMS) version 5.2.1.1 and the USGS National Hydrologic Model infrastructure (NHM, Regan and others, 2018). These data document the PRMS output data files for the precalibration and byHRU release runs for the AK domain produced for the period 1980-2021. Each .zip folder contains 15 NHM-PRMS output variables, in NetCDF format, for each simulation's release run and the Water-Budget Files with the model-domain summary table of the AK domain are also included in this child item (Markstrom and others, 2015; Hay and others, 2023). The main landing page provides additional information and a data dictionary (output_variables_data_dictionary.csv) which describes the selected output variables. CONTENTS OF THIS CHILD PAGE: 1. AK_byHRU_NHM_PRMS_data_release.out = AK byHRU annual water balance summary 1980-2021. 2. AK_precal_NHM_PRMS_data_release.out = AK precalibration annual water balance summary 1980-2021. 3. AK_byHRU_netcdf.zip = Folder containing outputs from the byHRU release run for the AK domain. 4. AK_precalibration_netcdf.zip = Folder containing outputs from the precalibration release run for the AK domain.

Total and organic carbon values from soil samples taken from the Yukon River Basin, Alaska. These samples were used to create a relationship between total carbon and organic carbon for samples which were only run for total carbon.

This data release includes continuous measurements of stream temperature and specific conductance from 24 sites on the Yukon River and other arctic rivers in Alaska. Measurements were collected at selected U.S. Geological Survey stream gages and in communities along major rivers.