Original scientific paper
ANALYSIS OF LOW-LEVEL JETS ASSOCIATED WITH IOP 2B CASE
D. Klarić
; Meteorological and Hydrological service of Croatia, Grič 3, 10 000 Zagreb, Croatia
S. Ivatek-Šahdan
; Meteorological and Hydrological service of Croatia, Grič 3, 10 000 Zagreb, Croatia
Abstract
The different methods of the numerical analysis of the small-scale features observed during MAP IOP cases are compared. The products from the MAP ECMWF Re-analysis are compared with the other analysis products. The properties of downscaling of MAP ECMWF Re-analysis to the meso-beta resolution are examined. The “blending initialisation method” developed under the ALADIN Project is applied as the initialisation technique. MAP IOP2 case has
declared as the most intensive and complex event during MAP IOP period. The strong south flow intrusion into the Rhone valley on 20 September 1999 at 00 UTC has been measured by Lyon radiosonde. The tests describe how the analysis of low-level jet has been improved by the “blending initialisation method”.
Keywords
blending initialisation method; mid-latitude cyclone inducted low-level jet; ALADIN; ARPEGE; MAP ECMWF Re-analysis; MAP IOP2b
Hrčak ID:
64513
URI
Publication date:
15.12.2005.
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