Stratospheric observations with LIDAR technique (NDSC)

Updated 2001-12-30

The stratospheric multi wavelength LIDAR instrument, which is part of the NDSC contribution of the Koldewey-Station, consists of two lasers, a XeCl-Excimer laser for UV-wavelengths and a Nd:YAG-laser for near IR- and visible wavelengths, two telescopes (of 60 cm and 150 cm diameter) and a detection system with eight channels. Ozone profiles are obtained by the DIAL method using the wavelengths at 308 and 353 nm. Aerosol data is recorded at three wavelengths (353 nm, 532 nm, 1064 nm) with depolarization measurements at 532 nm. In addition the vibrational N2-Raman scattered light at 608 nm is recorded. As lidar measurements require clear skies and a low background light level, the observations are concentrated on the winter months from November through March. The most prominent feature is the regular observation of Polar Stratospheric Clouds (PSCs). PSCs are known to be a necessary prerequisite for the strong polar ozone loss, which is observed in the Arctic (and above Spitsbergen). The PSC data set accumulated during the last years allows the characterization of the various types of PSCs and how they form and develop. The 353 and 532 nm channels are also used for temperature retrievals in the altitude range above the aerosol layer up to 50 km.

This is not a National Implementation Plan (NIP) project

Time frame

Status
Ongoing
Project time span
1988 - 2099
Data collection
1988 -
Data processing
1988 -
Data reporting
1988 -

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

Parameters and Media

Parameter groups measured/observed/modelled
Climate change effects
UV 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?
NDSC data base: http://www.ndsc.ncep.noaa.gov/get_data/invite.html
Samples/specimens archived in specimen banks?
No

Methods & Procedures

QA/QC Information (what QA/QC procedures are implemented, laboratories involvment in QA/QC activities, model verification/validation routines, etc.)

NDSC QA/QC guidelines are followed, NDSC intercomparison campaign NAOMI 98 was conducted in 1998

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
No
Is this project reporting to other organizations/programmes?

NDSC, EU

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