Alaskan river discharge, temperature, and climate data for a climate reference (1990-2021) and at mid-century (2034-2065)

### Access

NetCDF files in this dataset can be accessed and downloaded from the 'ADC' directory via: [https://arcticdata.io/data/10.18739/A2125QB7M/](https://arcticdata.io/data/10.18739/A2125QB7M/)

### Overview

The Regional Arctic System Model, combined with the Community Terrestrial Systems Model for climate and land surface processes, mizuRoute for river routing, and the River Basin Model for river temperature, was used to generate high-resolution spatial and temporal data for 49 major Alaskan river basins. This modeling framework was applied to compare Alaskan hydrology between historical (1990-2021) and mid-century (2035-2064) periods across six future scenarios. These scenarios include six dynamically downscaled projections: two pseudo-global warming simulations based on historical meteorology, and four directly downscaled global climate models under the Shared Socioeconomic Pathway (SSP) SSP2-4.5 and SSP3-7.0 emission pathways. The climate data encompass variables such as snowpack, evapotranspiration, precipitation (rain and snow), groundwater, river temperature and discharge, as well as heat flux to the ocean.