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Betydning av meteorologiske målinger med rutefly (AMDAR) for kvaliteten av numeriske værprognoser i Norge.

Pedersen, Nina Helen
Master thesis
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E-AMDAR.pdf (420.1Kb)
Year
2008
Permanent link
http://urn.nb.no/URN:NBN:no-24449

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  • Meteorologi og oseanografi [78]
Abstract
Initial condition will improve the weather forecast and that is the

subject in this master thesis.

Will weather observations from aircrat improve the weather prognoses in Norway.

Forecast have been made for observings systems with and without meteorological obserations from airplane AMDAR. The forecast have been integrated 60 hours forward in time using a six-hourly analyse cycle. The model called HIRLAM is a high resloution limited area model that produses short rang forecast for 2-3 days. This is a semi-Lagrangian model with horizontal grib field and vertical hybride coordinate system as resolution.

There have been selected four weather situations. There are two separa

te studyes, one without singulare wectors and one with singulare vectors.

The role of observations in the SV for the structure and geographical

location of the singular vectors will be discussed.
 
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