// NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP)
The NASA Earth Exchange Global Daily Downscaled Projections (NEX-GDDP) dataset is comprised of downscaled climate scenarios for the globe that are derived from the General Circulation Model (GCM) runs conducted under the Coupled Model Intercomparison Project Phase 5 (CMIP5) and across two of the four greenhouse gas emissions scenarios known as Representative Concentration Pathways (RCPs). The CMIP5 GCM runs were developed in support of the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR5). The NEX-GDDP dataset includes downscaled projections for RCP 4.5 and RCP 8.5 from the 21 models and scenarios for which daily scenarios were produced and distributed under CMIP5. Each of the climate projections includes daily maximum temperature, minimum temperature, and precipitation for the periods from 1950 through 2100. The spatial resolution of the dataset is 0.25 degrees (~25 km x 25 km). The NEX-GDDP dataset is provided to assist the science community in conducting studies of climate change impacts at local to regional scales, and to enhance public understanding of possible future global climate patterns at the spatial scale of individual towns, cities, and watersheds.
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 Service Name: NCCS THREDDS
Data Service Information: Search, Subset, Download, Visualize
(Helpful hint for scripts, e.g. wget - Use the url at the bottom of the NetCDFSubset page)
Data Service Access URL:
NCCS THREDDS Select Project "NEX".
Note: A problem with the date representation of noleap year calendar data in WMS and Godiva has been discovered. The developer is working on a fix. The data is not affected, just the visualization tools.
Short Name: NEX-GDDP
Format: netCDF4 classic
Spatial Coverage: Global
Temporal Coverage: 1950 - 2005 historical or 2006 - 2099 RCP
Latitude Resolution: 0.25 degrees (25 km)
Longitude Resolution: 0.25 degrees (25 km)
Temporal Resolution: daily
Total Dataset Size: 12 TB
Individual files size: 750 MB
|tasmin||Daily minimum near-surface air temperature||K|
|tasmax||Daily maximum near-surface air temperature||K|
|precipitation||Daily mean precipitation rate at surface||kgm-2s-1|