Preliminary results with the LaMP X band radar J. Van Baelen¹, Y. Pointin¹, F. Tridon¹, and M. Hagen² 1°/ Laboratoire de Météorologie Physique, Observatoire.

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Presentation transcript:

Preliminary results with the LaMP X band radar J. Van Baelen¹, Y. Pointin¹, F. Tridon¹, and M. Hagen² 1°/ Laboratoire de Météorologie Physique, Observatoire de Physique du Globe de Clermont-Ferrand, 2°/ Institut für Physik der Atmosphäre, DLR – Oberpfaffenhofen.

Ι / LaMP contribution to COPS

LaMP contributions to COPS  Super site Vosges (mountain): Scanning X band precipitation radar

X band radar characteristics  Site: Bischenberg 48°28’45” N / 7°28’29” E  Operations: 15 Jun. – 29 Aug.  Resolutions: Range 60 m. Azimuth 2° Time 30 sec.  Data base: All POI PNGs are available on ftpobs.univ-bpclermont.fr/exterieur/JVB Reprocessing under way Z & Rs available later

LaMP contributions to COPS  Super site Vosges (mountain): Scanning X band precipitation radar  Super site Vosges (valley): Micro Rain Radar K band profiler Raingage and J-W disdrometer

MRR characteristics  Site: Niedernai 48°26’53” N 7°31’33” E  Operations: 14 Jun. – 30 Aug.  Resolutions: Vertical 100m. Max range 3000m. Time 20 sec.  Data base: All MRR measurements are on Data Base (format similar to all other COPS MRRs) Raingage data in preparation (example format ?)

LaMP contributions to COPS  Super site Vosges (mountain): Scanning X band precipitation radar  Super site Vosges (valley): Micro Rain Radar K band profiler Rain gage and J-W disdrometer  GPS network / IWV and tomography  Cloud microphysics model

ΙΙ / Observations

Real Time Data / Animation of last 2 h on line Entzheim Mutsig Grendelbruche Mt Sainte Odile Champ du Feu Trees V

The X-Rad Horror show !

Impact on measurements

ΙΙΙ / Preliminary results

New X-band radar visualization

Impact on measurements

Monthly Cumulated Rains

IOP14 V-site rain event

Reflectivity comparisons and Rain Rate Estimates

IOP 15  Contrasted behavior when comparing 12 and 13 of August Cell generation:  12: Crests  13: Foothills Evolution:  12: Stationnary at first then slow drift before disappearing on plains  13: Reinforcement together with motion to the East

POLDIRAD: Cell Tracking IOP Aug UTC 13 Aug UTC cell tracks first occurrence X Rad

August 12 (12:00 – 15:00 UTC)

August 13 (12:30 – 13:30 UTC)

ΙV / What’s next ?

Future work & Objectives  Combined studies with MRR in order to retrieve adapted Z-R relationships and improve rain rate estimations  Comparisons with other radars (POLDIRAD + DOW) and instruments  Link radar observations with humidity field structure and evolution (GPS tomography and airborne measurements)  Detailed study of precipitation events within their meteorological context  Comparison with LaMP microphysical simulations

That’s all for now ! Questions ?

Primary IOPs of interest  Criterions Precipitations seen by X band radar Measurements with POLDIRAD & DOW Airborne measurements  Selection IOP 7 IOP 14 IOP 15 IOP 12 IOP 10 Others: IOP 5 – 6, days 21/6 - 16/8, ATR flights

Tomography (coarse) primer ! 12 Aug. 11:00