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Metrics for Improved Reanalyses in Polar RegionsAtmospheric reanalyses are widely used for a variety of scientific endeavors in the Arctic and Antarctic. Reanalyses are used as boundary conditions for a regional and process-based models, for climate model validation, and for diagnostic analysis of physical processes, weather and climatic events. However, reanalyses are typically global and often do not account for specific, regional considerations, such as for polar regions. In this work, we provide a brief evaluation of a prototype for a new GMAO reanalysis, which incorporates higher spatial resolution, an updated approach for data assimilation, and a revised atmospheric model. We identify differences in the representation of the Arctic atmosphere in comparison to recent reanalyses. Furthermore, we provide a forum for Arctic scientists to consider the future improvements for reanalyses, and seek feedback for the following questions: 1) What are important performance factors to consider in evaluating new reanalyses? 2) What physical processes should be incorporated into new reanalyses? 3) What spatio-temporal scales should be considered?
Document ID
20200001234
Acquisition Source
Goddard Space Flight Center
Document Type
Poster
Authors
Parker, Chelsea L. (Maryland Univ. College Park, MD, United States)
Cullather, Richard I. (Maryland Univ. College Park, MD, United States)
Andrews, Lauren C. ORCID(NASA Goddard Space Flight Center Greenbelt, MD, United States)
El Akkraoui, Amal (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
February 28, 2020
Publication Date
February 20, 2020
Subject Category
Meteorology And Climatology
Report/Patent Number
GSFC-E-DAA-TN78368
Meeting Information
Meeting: Program for Arctic Regional Climate Assessment (PARCA)
Location: Greenbelt, MD
Country: United States
Start Date: February 20, 2020
End Date: February 21, 2020
Sponsors: NASA Goddard Space Flight Center
Funding Number(s)
CONTRACT_GRANT: NNX17AE79A
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
NASA Technical Management

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