User Tools

Site Tools


instruments:tower:tower

This is an old revision of the document!


Meteorological Tower

Mentor: J.H. Schween

Principle

The meteorological tower was built in 1963 and 1964 based on the model of the towers in Rookhaven (USA) and Risoe (Denmark). It has a height of 124 m and a triangular cross section. An elevator inside is operated for easy access to the measurement platforms. The tower is steadied from three directions at 40 m and 100 m height respectively.

The tower is located in the northwest of the Jülich Research Center and surrounded by 20 m high forest. The instrumentation allows measurements of wind velocity, temperature and humidity in 8 heights, wind direction in 3 heights and radiation in two heights to provide the local information on wind, air temperature, relative humidty, radiation, and air pressure. Additionally precipitation is registered at ground level.

For more information refer to the webpage at the research center Juelich.

Instrument

Data

* If you are interested in receiving data please contact the instrument mentor: J.H. Schween

* Recent plots can be found in the Quicklook archive

Examples of latest available measurements (typically the last week Friday to Thursday):

T_air RH Wind

Temperature (left, red), humidity (middle, green) and wind (right, blue) measured at different heights (i.e. 2, 10, 20, 30, 50, 80, 100, 120m) the brighter the color the higher up.

History

We have data available from 1.1.2006. Nevertheless measurements go back to 1961 and the website at Juelich provides Climate data, diagrams, 'meteograms' etc. (in German).

Specifications

Parameter Instrument height(s)
Temperature ventilated Thermometer 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m
Humidity Hair Hygrometer 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m
wind speed cup anemomemter 8 heights: 2, 10, 20, 30, 50, 80, 100, 120m
wind direction wind vane 3 heights: 30, 50, 120m
Downwelling radiation broadband radiometer 2 heights: 30, 120m
upwelling radiation broadband radiometer 2 heights: 30, 120m
Pressure :-) at foot of tower
Precipiation tipping bucket at foot of tower
instruments/tower/tower.1476438187.txt.gz · Last modified: 2016/10/14 11:43 by jan