articleMonthly Weather ReviewMar 18, 2004BRONZE OA

A Three-Dimensional Variational Data Assimilation System for MM5: Implementation and Initial Results

DBDale BarkerWHWei HuangYGY-R. GuoABAl BourgeoisQXQ. Xiao

NSF National Center for Atmospheric Research

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Abstract

A limited-area three-dimensional variational data assimilation (3DVAR) system applicable to both synoptic and mesoscale numerical weather prediction is described. The system is designed for use in time-critical realtime applications and is freely available to the data assimilation community for general research.

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Topics & keywords

Topics
Keywords
  • MM5
  • Data assimilation
  • Mesoscale meteorology
  • Meteorology
  • Weather Research and Forecasting Model
  • Covariance
  • Typhoon
  • Computer science
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