Coastal freshwater discharge simulations fo the Gulf of Alaska, 1931-2021

This dataset is an 82-year time series of freshwater discharge estimates from Southeast and Southcentral Alaska from 1931-2013. These estimates were produced from computer model simulations of the hydrology of the GOA watershed using MicroMet, SnowModel, SoilBal, and HydroFlow. The model output is on a daily time step and has a spatial resolution along the coastline of 1 km. Model output is in self-describing netCDF format. The refined model incorporates new inputs from from glacial melting and river discharge in British Columbia and was tuned using hydrographic data from the GAK1 mooring station. The GAK1 mooring has produced a 46-year time series of temperature and salinity measurements at at 59° 50.7' N, 149° 28.0' W, located within the Alaska Coastal Current and connected with the inner Gulf of Alaska shelf circulation. The dataset has been updated to include discharge estimates through 2021 and has been archived as a text-based .dat file for years 1291-2013, and as annual netCDF and csv files for each year from summer 2013 through summer 2021. These results were generated with support from the Gulf Watch Alaska (GWA), Pelagic Component of the Exxon Valdez Oil Spill Trustee Council, project numbers 12120114-P-2013120114-P, and the Northern Gulf of Alaska Long-Term Ecological Research program supported by the National Science Foundation (OCE-1656070).