On August 27, 2025, the NSF NCAR Climate Data Gateway (CDG) and Geoscience Data Exchange (GDEX) will be migrated into the RDA. Please update your bookmarks and citations.
The RDA Jira Help Desk will be unavailable starting August 25 at 5:00 PM MDT. Service will resume on August 26 under a new name: DATAHELP. All customer channels will automatically redirect to the new DATAHELP page.
The Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM-X) is a comprehensive numerical model, spanning the range of altitude from the Earth's surface to the upper thermosphere. The history files here refer to a 1980-2017 specified dynamics (SD) WACCM-X version v2.1 simulation with nudging of Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) data from the surface up to approximately 50 km.
long run data is an update for 1 January 2000 - 31 December 2017. The unspecified time frequency data is hs output; these files contain the variable instr_num which is set equal to 40 for the CHAMP satellite, 41 for GRACE, 42 for GOCE, 43 for SWARM-A, and 44 for SWARM-B.
Temporal Range:
1980 to 2017
Variables:
Rain
Data Types:
Model Simulation
Data Contributors:
UCAR/NCAR/CGD
Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Citation counts are compiled through information provided by publicly-accessible APIs according to the guidelines developed through the https://makedatacount.org/ project. If journals do not provide citation information to these publicly-accessible services, then this citation information will not be included in RDA citation counts. Additionally citations that include dataset DOIs are the only types included in these counts, so legacy citations without DOIs, references found in publication acknowledgements, or references to a related publication that describes a dataset will not be included in these counts.