edu.ucar.gdex::d010111 eng; USA utf-8 dataset NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu NSF NCAR Geoscience Data Exchange The Geoscience Data Exchange (GDEX), managed by the Computational and Information Systems Laboratory (CISL) at NSF NCAR, contains a large collection of meteorological, atmospheric composition, and oceanographic observations, and operational and reanalysis model outputs, integrated with NSF NCAR High Performance Compute services to support atmospheric and geosciences research. download pointOfContact 2026-04-21T20:49:28Z ISO 19115 Geographic Information - Metadata ISO19115:2003/Cor 1 2006 https://doi.org/10.5065/c3kn-2y77 21st Century Hydrologic Projections for Alaska and Hawaii d010111 2021-01-01 publication Mizukami, Naoki author Newman, Andrew J. author Wood, Andrew W. author Gutmann, Ethan D. author Hamman, Joseph J. author NSF National Center for Atmospheric Research publisher High resolution ensembles of hydroclimate projections are useful for climate and water resources adaptation planning and many of these datasets exist over United States focused domains specifically the Contiguous United States (CONUS). However, very few century-long, high-resolution hydroclimate projections exist over Alaska and Hawaii and no statewide projections including hydrology exist. This motivated us to develop a dataset consisting of multiple statistically downscaled climate model projections and corresponding off-line hydrologic model simulations to obtain hydrologic simulations from 1950 to 2099 over the two domains, which fills a critical gap in hydroclimate projection capabilities for these two under-served regions. We take an approach similar to previous CONUS hydrologic assessments where we: 1) select climate model outputs based on CMIP5 Representative Concentration Pathway 4.5 and 8.5; 2) perform statistical downscaling to generate high-resolution climate input data for hydrologic models (12-km grid-spacing for Alaska and 1-km for Hawaii); and 3) perform off-line hydrologic model simulations, using the Variable Infiltration Capacity (VIC) model. A notable difference in the hydrologic model configuration from CONUS to this case, is the use of full water-energy balance computation with a simple glacier model for Alaska. Overall, the simulations in Hawaii show large uncertainty in total runoff driven by large variability in precipitation among the GCMs used for this study. Robust warming and increases in precipitation produce runoff increases for most of Alaska. However, runoff is likely to decrease in current glacierized areas in southeast Alaska. completed datahelp@ucar.edu pointOfContact notPlanned dataset https://gdex.ucar.edu/images/ds_logos/default_200_200.png Logo thumbnail from URL png HDF5/NetCDF4 dataset Resource Type 2021-03-30 revision 4.4 DataCite Metadata Working Group orginator resourceTypeGeneral MODELS > MODELS U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-04-15 revision 23.7 NASA Global Change Master Directory orginator Valids List: Platforms EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE TEMPERATURE > MAXIMUM/MINIMUM TEMPERATURE EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT U.S. National Aeronautics and Space Administration Global Change Master Directory GCMD 2026-04-15 revision 23.7 NASA Global Change Master Directory orginator Valids List: Science and Services Keywords Creative Commons Attribution 4.0 International License None eng utf-8 climatologyMeteorologyAtmosphere NSF NCAR Geoscience Data Exchange datahelp@ucar.edu https://gdex.ucar.edu distributor 2119129.604 https://gdex.ucar.edu/datasets/d010111/ https Dataset Description Related Link information https://gdex.ucar.edu/datasets/d010111/dataaccess/ https Data Access Related Link download none asNeeded