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- The Grünloch-Experiment (Lunz am See, Austria)

- Meteorological Field Campaign about temperature inversions in Alpine basins


  Following instruments are used at the moment in Grünloch (Winter 2003/04):

HOBO Pro Temperature Data Logger

  
LOCATIONS: Gruenloch Bottom (3 Hobos), Ahornboden (1 Hobo), Seekopfalm (1 Hobo)

DATE OF INSTALLATION: 7 December 2003

TIME INTERVAL of records: 5 min

LAST DOWNLOAD TRIP: 4 February 2004

NEXT DOWNLOAD DATE: April/May 2004

MEASURED PARAMETERS: Temperature

ABOUT THE DATA LOGGER: These Data Loggers save the data on a small main board. In order to get the data, you have to download each logger with your laptop or a shuttle, which is specially made for all loggers of the HOBO family (http://www.onsetcomp.com/). The Hobos are supplied with energy  by a battery inside the data logger. Under normal conditions, the battery last for three years. These Loggers are ideal for measurements in remote areas, where you have no power supply. The disk space is large enough, that you don't have to download the data set each week.

 

 

INSTRUMENTATION DURNING THE FIELD CAMPAIGN
IN WINTER 2001/2002
Locations of our instrumentation (Hobos, weather stations and tethersonde)
  

   

This map shows every location of our instruments.

The black dots represent our temperature data loggers (HOBOS). We installed three lines, starting at the centre of the sink hole.
The first line (NW Line) went from the centre to the lowest saddle, and turned there to the NE, up the ridge to the Hetzkogel-Plateau (16 locations)
The SE Line went to Seekopfalm-Doline (15 locations) and the SW line up to Mt. Huehnerkogel (8 locations).

3 data logger were installed at the outflow valley (Lechnergraben, LG) and another 8 data logger were located at other sinkholes near Gruenloch. The last data logger was installed at the Dürrensteinalm-Basin near the mountain hut Ybbstalerhuette.

We had also 3 weather stations (Vaisala), one at the floor of the sinkhole, one at the lowest saddle and one at the mountain top of Hühnerkogel. These stations made measurements of temperature, humidity, wind speed and wind direction.

During our main field campaign in early June we were running two tethered balloons, to get more data from the atmosphere inside the cold air pool.


- last update: 05.02.2004 | contact: stefan@eisenbach.at|