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The NAWDEX data set will be compared with NWP analysis fields to study the magnitude of initial condition errors. By comparing all observations of wind and water vapor with NWP output, statistics of errors will be computed.
A special focus is put on the relation of errors to the dynamic structure of the midlatitude flow. It will be verified how well the strong wind gradients around the jet stream are represented in the vicinity of positive and negative PV anomalies. Errors will be related to the waveguide location and to the tropopause position and structure to identify possible regions of misrepresentation in upper level PV anomalies driven by diabatic processes. It will be investigated whether the especially strong errors are related more to the type or the strength of diabatic processes.
Quantification of analysis errors | |
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Research Questions |
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Planned Observations | All wind, temperature and moisture data |
Obsevation strategy |
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NAWDEX goals: