Non-stationary NG-IDF Dataset from ICAR-DHSVM for Yakima River Basin (WA): CMCC-CM2-SR5

This dataset contains the NG-IDF (Next-Generation Intensity-Duration-Frequency) data generated using ICAR-DHSVM simulations for all grid cells over the Yakima River Basin in Washington State (file: CMCC-CM2-SR5_gridcell.zip). It also includes aggregated data for the Yakima Training Center (YTC) area (file: CMCC-CM2-SR5_YTC.zip).

The ICAR model was used to downscale data from five CMIP6 GCMs for historical periods and three future scenarios (SSP2-4.5, SSP3-7.0, and SSP5-8.5). Due to data limitations, the datasets for the five GCMs are hosted under different DOIs. This site specifically provides data for the CMCC-CM2-SR5 GCM. The datasets for other GCMs can be accessed at the following locations:

• CanESM5: 10.5281/zenodo.14553541
• MIROC-ES2L: 10.5281/zenodo.14553866
• MPI-ESM1-2-LR: 10.5281/zenodo.14556337
• NorESM2-MM: 10.5281/zenodo.14556351

Each GCM dataset includes historical data and projections for the three future scenarios. For each scenario, data are provided for nine land-use/land-cover (LULC) types consistent with the NLCD classification: Crop, Deciduous Forest, Evergreen Forest, Grass, Mixed Forest, Open, Pasture, Shrub, and Wetland.

Within each folder, the following are included:

1. 3-hour time series data
2. Annual maximum W data
3. NG-IDF curves