Result of Assimilating Ground-Based MLT Winds into WACCM

This dataset contains the outputs from assimilating MLT wind observations from ground-based Super Dual Auroral Radar Network (SuperDARN) and meteor radar networks into the Whole Atmosphere Community Climate Model (WACCM) using the Ensemble Adjustment Kalman Filter (EAKF) within the Data Assimilation Research Testbed (DART). Two Observing System Simulation Experiments (OSSEs) were conducted for the 2018/2019 Northern Hemisphere winter. In the first OSSE, Experiment 09, synthetic observations of lower atmospheric state variables and SABER and MLS neutral temperatures are assimilated. In the second OSSE, Experiment 08, additional synthetic ground-based MLT wind measurements were assimilated to assess their added value. The data includes the hourly output of the ensemble mean of prior neutral temperature, neutral zonal wind, and neutral meridional wind as well as the synthetic observation files.

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Temporal Range

  • Begin:  2018-12-10T0100+00
    End:  2019-01-31T0000+00

Keywords

Resource Type dataset
Temporal Range Begin 2018-12-10T0100+00
Temporal Range End 2019-01-31T0000+00
Temporal Resolution N/A
Bounding Box North Lat 90.0
Bounding Box South Lat -90.0
Bounding Box West Long -180.0
Bounding Box East Long 180.0
Spatial Representation grid
Spatial Resolution 2.5 degree
Related Links N/A
Additional Information N/A
Resource Format NetCDF
Standardized Resource Format NetCDF
Asset Size 361306.608 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Hsu, Chih-Ting
Publisher NSF National Center for Atmospheric Research
Publication Date 2025-09-29
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier d010103
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress completed
Metadata Date 2025-10-09T01:46:00Z
Metadata Record Identifier edu.ucar.gdex::d010103
Metadata Language eng; USA
Suggested Citation Hsu, Chih-Ting. (2025). Result of Assimilating Ground-Based MLT Winds into WACCM. NSF National Center for Atmospheric Research. https://gdex.ucar.edu/datasets/d010103. Accessed 11 October 2025.

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