EGU2020-1417, updated on 12 Jun 2020
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

The WegenerNet 3D weather and climate research facility: A unique open-air laboratory for high-resolution precipitation studies

Jürgen Fuchsberger1, Gottfried Kirchengast1,2, and Christoph Bichler1,2
Jürgen Fuchsberger et al.
  • 1University of Graz, Wegener Center for Climate and Global Change (WEGC), Graz, Austria (
  • 2Institute for Geophysics, Astrophysics, and Meteorology, Institute of Physics, University of Graz, Graz, Austria

The WegenerNet Feldbach Region is a unique weather and climate observation facility
comprising 155 meteorological stations measuring temperature, humidity, precipitation,
and other parameters, in a tightly spaced grid within a core area of 22 km × 16 km
centered near the city of Feldbach (46.93°N, 15.90°E).
With its stations every about two square-km (area of about 300 square-km in total),
and each station with 5-min time sampling, the network provides regular measurements
since January 2007. In 2020, the station network will be expanded by three major
new components, converting it from a 2D ground station network into a 3D open-air
laboratory for weather and climate research at very high resolution.
The following new observing components will start operations by spring 2020:

  1. A polarimetric X-band Doppler weather radar for studying precipitation parame-
    ters in the troposphere above the ground network, such as rain rate, hydrometeor
    classification, Doppler velocity, and approximate drop size and number. It can
    provide 3D volume data (at about 1 km × 1 km horizontal and 500 m vertical res-
    olution, and 5-min time sampling) for moderate to strong precipitation. Together
    with the dense ground network this allows detailed studies of heavy precipitation
    events at high accuracy.
  2. An azimuth-steerable microwave/IR radiometer for vertical profiling of temperature,
    humidity, and cloud liquid water in the troposphere (with 200 m to 1 km vertical
    resolution, and 5-min time sampling), also capable of measuring integrated water
    vapor (IWV) along line-of-sight paths towards Global Navigation Satellite System
    (GNSS) satellites.
  3. A water vapor mapping high-resolution GNSS station network, named GNSS StarNet,
    comprising six ground stations, spatially forming two star-shaped subnets (one
    with ∼10 km interstation distance, and one embedded with ∼5 km distance), for
    providing slant IWV, vertical IWV, and precipitable water, among other parame-
    ters, at 5-min time sampling.

We will present a detailed overview of the new components, their location, specifica-
tion, and output data products.

How to cite: Fuchsberger, J., Kirchengast, G., and Bichler, C.: The WegenerNet 3D weather and climate research facility: A unique open-air laboratory for high-resolution precipitation studies, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-1417,, 2019


Display file