Investigations of tropospheric aerosols by lidar

Updated 2001-12-31

A tropospheric lidar system with a Nd:YAG-Laser was installed at the Koldewey-Station in 1998. It operates at a laser wavelengths of 355, 532, and 1064 nm with detection at 532 nm polarised and depolarised, and at Raman wavelengths like 607nm (nitrogen). It records profiles of aerosol content, aerosol depolarisation and aerosol extinction. During polar night the profils reach from the ground up to the tropopause level, while during polar day background light reduces the altitude range. The main goal of the investigations is to determine the climate impact of arctic aerosol. Analysis of the climate impact will be performed by a high resolution regional model run at the Alfred Wegener Institute (HIRHAM). The lidar system is capable to obtain water vapour profiles in the troposphere. Water vapour profiles are crucial for the understanding of the formation of aerosols. The water vapour profiles are also used for the validation of profiles measured by the CHAMP satellite from 2001 onwards.

This is not a National Implementation Plan (NIP) project
Comments and additional information:

During February - April 2000: succesful day and night measurements for the ASTAR2000 campaign.

Time frame

Status
Ongoing
Project time span
1999 - 2099
Data collection
1999 -
Data processing
1999 -
Data reporting
not specified

Contact information

Contact person
Roland Neuber
Address
Alfred Wegener Institute, Foundation for Polar and Marine Research, Research Unit Potsdam Telegrafenberg A43 D-14473 Potsdam Germany
Phone
+49-331-288-2129
Fax
+49-331-288-2178
Email
ed.madstop-iwa@rebuen
Other project contacts
Michael Gerding Alfred Wegener Institute, Foundation for Polar and Marine Research, Research Unit Potsdam Telegrafenberg A43 D-14473 Potsdam Germany Tel. +49-331-288-2167 mgerding@awi-potsdam.de

Parameters and Media

Parameter groups measured/observed/modelled
Climate change effects
Media sampled/studied/modelled
Air/aerosol

Geography

Regions studied
Koldewey Station, Ny-Ă…lesund/Spitsbergen
Svalbard

Data availability

If no (or only part of data are reported to a TDC), where and how are (other) data stored?
partly at ASTAR data base (http://www.awi-potsdam.de/www-pot/astar/)
Samples/specimens archived in specimen banks?
No

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
No
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