28 - 30 November 1997
DLR Oberpfaffenhofen, Germany
During this weekend 18 meteorologists and soaring pilots came together to discuss scientific
aspects of soaring meteorology.
The meeting was opened by a series of short presentations:
Olivier Liechti: Potential Flying Distance - A prognostic measure for soaring forecasts.
Wolf-Dieter Herold: Thermal waves project in Boulder, CO, USA.
Rene Heise: Meteorological support of the german team in St.Auban 1997.
Forecast for the 1000 km FAI triangle by Uli Schwenk (21 Apr. 97) in Germany.
Jon Meis: Analysis of the structure of thermals by GPS measurements.
Helmut Köhler: Measurements of the potential temperature.
In three working groups the following topics were discussed in detail:
Forecasts for soaring
A huge amount of data is now
available form the internet, by telefax and selfbriefing systems like pc_met.
Of particular interest are informations on the PFD (potential flying distance),
the wind, beginning and end of thermals, cloud cover. A detailed forecast up
to 3 days is now possible. Time-height cross-sections should be provided
for selected regions. Experience shows that a feedback from pilots to forecasters
is difficult to establish.
Atmospheric measurements from gliders
Measurements of potential temperature
and wind will help in understanding the atmosphere. It also enables to
verify high resolution numerical forecast models. Data can be recorded
by free chanels of GPS loggers.
German version of the WMO/OSTIV
"Handbook of meteorological forecasting for soaring flight"
The aim is to translate and
supplement the handbook. It should provide detailed information on the
climatology and soaring conditions in Europe. The handbook should help
The german version of the
handbook will be published by the DWD. The handbook will be available at the
World Gliding Championships in Bayreuth in 1999.
Forecasters to understand soaring and the special needs of gliding pilots.
Pilots with special interest in meteorology.
Meteorologists (scientists) to understand the state of the art of forecasting
for soaring flight.
Hermann Trimmel and