preliminary results with the lamp x band radar j. van baelen¹, y. pointin¹, f. tridon¹, and m....
Post on 15-Jan-2016
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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 15
12 Aug. 2007 11-17 UTC 13 Aug. 2007 8-15 UTC cell tracks
first occurrence X RadX 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