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UAV_met

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by

Péter Kardos

on 6 November 2013

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Transcript of UAV_met

UAVs all over the world
Integrated
Aviation
Weather
Prediction
System

IAWPS
Typical weather risks for UAV operation
Meteorological briefing
Provide information for UAV staff
Support decision making procedure
IAWPS
Effects on
1. navigation and reconnaissance
Low visibility
Low cloud base
2. operation
Icing
Turbulence
Wind shear
Strong wind
Bad airfield condition
Statistical module
METAR database for airports
Climatological data processing
Conditional climatology or analog methods
Fuzzy logic-based analog forecasting
See ECAM 5 poster GF3
Dynamical module
Setting up nested domains
Domain
grids
resolution
GFS
720x180
0.5° (~50km)
d01
97x97
22,5 km
d02
97x97
7,5 km
d03
202x121
2,5 km
38 vertical levels
 

PBL schemes
 

Surface layer schemes
 

Cumulus schemes
 


30 ens members
9 reference cases
19 January, 2012

Jégeső, felhőszakadás
Királyrét: 94 mm
Siófok > 110 km/h

29 July, 2012.

8 September, 2012
6 December, 2012
Parameters and spatial extent
Safe landing...
Thank you for your attention !
LHBP SODAR/RASS
50 .. 500 m AGL
25 m resolution
10 min. averages
Data available every 10 min
Visibility forecast for LHSN
Using NCEP GFS data
Weather Research and Forecasting model (WRF)
open source
flexibility
scalability
UAV measurements
Special sensors for meteorological purpose
Additional data for a pre-mission briefing
See ASI14 poster at GF96
19/01/2012:
Significant low level inversion during winter period
22/01/2012:
Well documented severe icing weather situation
16/02/2012:
Convective precipitation from a high level cold vortex, temperature in the mid-troposphere less then -25 °C
12/05/2012:
Significant change in wind direction following a cold front
29/07/2012:
Deep convection resulting in local and heavy showers that were not well resolved by most operational models
08/09/2012:
High pressure ridge transition resulting in significant and rapid change in wind direction
20/09/2012:
High horizontal pressure gradient situation with strong winds, with a special wind-patter
27/10/2012:
Widespread precipitation from a Mediterranean low pressure system
06/12/2012:
UAV test flight case for direct verification purpose
20 September 2012
Forrás: Sat24

12 May, 2012
27 October, 2012
16 February, 2012
Some charts...
Conclusions
Underestimated 2m temperature
Especially in case of sunny weather

Overestimated 2m dew point
PBL=4 (QNSE) slightly better

PBL = 4
Wind evaluation
Significant systematic overestimation of wind speed
Depending on weather situation
PBL = 2, PBL = 4 and PBL = 8 with higher RMSE
Conclusions
30 WMO stations
Development of a complex dynamical modeling system for the meteorological
support of unmanned aerial
operations in Hungary

Z. Bottyán, P. Kardos, Z. Gyöngyösi and R. Kurunczi
SODAR/RASS data
Radiosounding data
Vertical evaluation
11035, 12843,
12892, 14240
Ongoing research
Soil texture
Kreybig (MTA TAKI)
Land cover database
Corine
 

Microphysic schemes
Full transcript