Ground Based Millimeter-Wave Observation Group



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IUP-Homepage
Institute of Environmental Physics (Institut für Umwelt- Physik / IUP) and Remote Sensing (Institut für Fern- Erkundung / IFE). For further information open the IUP/IFE Institute-Page.
General Information
...about our work, the location of our laboratory in the Arctic (map of Spitsbergen), links to the stations of NDSC (all over the world), etc.
RAM
The Radiometer for Atmospheric Measurements (RAM) offers long-term stability suitable for the monitoring purposes within the Network for the Detection of Stratospheric Change (NDSC). Ozone and chlorine monoxide are continously measured since 1994.
[Content: General / Instrument / Spectra / Retrieval]
BRERAM
The BREMEN Radiometer for Atmospheric Measurements (BRERAM), a microwave radiometer has been installed at the University of Bremen. Continous measurements of ozone are planned for the near future.
[Content: Instrumental / Conditions]
RESULTS
This page is accessible now.
Actual Ozone Profiles
The latest profiles of our ozone measurements in Spitsbergen will be shown on this side in a diagram, and in another diagram the results of the 10 hours prior to the log-in-time will be presented (in April '98, too).
PUBLICATIONS
If you are searching for information about our published papers, proceedings and poster between 1993 and today (sorted by year and authors) then open this page.
Projects
Ongoing projects of the Ground Based Millimeter-Wave Observations Group.
Staff
How to contact us?
Details, like adress, phone and fax numbers, etc. you get from here!


General Information arctic station on Spitsbergen The group Ground Based Millimeter-Wave Observations at the Institute of Environmental Physics (IUP) is involved in the development and the operation of passive microwave receivers for the detection of stratospheric trace gases (e.g. ozone).
The ozone hole that occurs every spring over the Antarctic continent is a well known phenomenon. In recent years, a comparable ozone depletion was observed in the Arctic [paper]. During an ozone hole event, the ozone in the stratosphere is destroyed throught chemical reactions involving the chlorine molecule. The chlorine has been brought into the stratosphere through man made fluor-chloro-carbons. In these chemical reactions chlorine monoxide (ClO) is produced.

Click the red circles! Map of Spitsbergen Map of the University of Bremen



One instrument, the Radiometer for Atmospheric Measurements (RAM), has been deployed in the arctic station (picture above) of the Network for the Detection of Stratospheric Change (NDSC), Ny-Ålesund ( click the card on the left side!), since 1994. The RAM continuously monitors stratospheric ozone profiles over Ny-Ålesund, and in spring time also the chlorine monoxide (ClO) content.
The NDSC is a world wide network of very well equipped stations that monitor a variety of different stratospheric constituents in order to detect long-term changes in the composition of the stratosphere.





The 5 primary stations of the NDSC are located in:



Go Home! the Arctic
Go To! Eureka
Go To! Ny-Ålesund
Go To! Sondre Stromfjord
Go To! Thule
Go Home! the Alps
Go To! Bern
Go To! Bordeaux
Go To! Garmisch
Go To! Haute Provence
Go To! Jungfraujoch
Go To! Plateau de Bure
Go To! Zugspitze
Go Home! Hawaii
Go To! Mauna Kea
Go To! Mauna Loa Observatory
Go Home! New Zealand
Go To! NIWA Activities at Lauder
Go Home! Antarctic
Go To! ArrivalHeights
Go To! Dome Concorde
Go To! Dumont d’Urville
Go To! McMurdo Station
Go To! NOAA South Pole Station


There are also about 40 complementary stations all over the world.
The arctic station Ny-Ålesund, Spitsbergen,(78.9 N/11.9 E) is operated by the German
Alfred-Wegener- Institute for Polar an Marine Research


All text on this server is © 1998 Institute of Environmental Physics, University of Bremen, Germany, and may not be quoted, copied or used without permission. Use Netscape Navigator for optimal presentation of our pages.

Pages created by Thomas Kleiner and Wolfgang Arnold , last change 1998/06/10.