Title: WACCMX DART 2010 Northern Hemisphere Winter Temperature and Wind Description: The dataset contains hourly simulation output from the Whole Atmosphere Community Climate Model with thermosphere-ionosphere eXtension (WACCMX) with data assimilation from the Data Assimilation Research Testbed (DART) ensemble Kalman filter. Results are based on the ensemble mean of 40 WACCMX DART ensemble members. The dataset covers the time period of December 2009 to March 2010, and includes the WACCMX DART temperature and wind fields. The data are in support of publication "Intercomparison of Middle Atmospheric Meteorological Analyses for the Northern Hemisphere Winter 2009-2010." Metadata URL: https://gdex.ucar.edu/dataset/id/9f1f8f40-5fa4-4b33-9c37-e2d936c8cce6.html