// NASA Earth Exchange (NEX) Downscaled Climate Projections (NEX-DCP30)

The NASA Earth Exchange (NEX) Downscaled Climate Projections (NEX-DCP30) dataset is comprised of downscaled climate scenarios for the conterminous United States that are derived from the General Circulation Model (GCM) runs conducted under the Coupled Model Intercomparison Project Phase 5 (CMIP5) [Taylor et al. 2012] and across the four greenhouse gas emissions scenarios known as Representative Concentration Pathways (RCPs) [Meinshausen et al. 2011] developed for the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR5). The dataset includes downscaled projections from 33 models, as well as ensemble statistics calculated for each RCP from all model runs available. The purpose of these datasets is to provide a set of high resolution, bias-corrected climate change projections that can be used to evaluate climate change impacts on processes that are sensitive to finer-scale climate gradients and the effects of local topography on climate conditions. 

Each of the climate projections includes monthly averaged maximum temperature, minimum temperature, and precipitation for the periods from 1950 through 2005 (Retrospective Run) and from 2006 to 2099 (Prospective Run). 

Data Access

Data Service Name: NCCS THREDDS
Data Service Information: Search, Subset, Download, Visualize
Data Service Access URL:



Bridget Thrasher, Forrest Melton, and Weile Wang from NASA NEX


Short Name: NEX-DCP30
Version: 1
Format: netCDF4 classic

Spatial Coverage: CONUS
Temporal Coverage: 1950 - 2005 historical or 2006 - 2099 RCP

Data Resolution:
Latitude Resolution: 30 arc second
Longitude Resolution: 30 arc second
Temporal Resolution: monthly

Total Dataset Size: 17 TB
Individual file size: 2 GB


NEX-DCP30 Tech Note


tasmin Daily mean of the minimum near-surface air temperature K
tasmax Daily mean of the maximum near-surface air temperature K
precipitation Daily mean precipitation rate at surface kgm-2s-1