1m 'Silver' Ebert-Fastie Spectrometer


The University Centre in Svalbard (UNIS)

Scientific objectives
Determine the morphology of the mesophere winter temperature behavoir associated with gravity waves and stratospheric warmings in the northern hemisphere.

It is setup to scan in the near infrared wavelength region of the electromagnetic spectrum including the OH(6-2) band of airglow. The OH airglow is a chemically produced emitting layer located at a height of about 87 km and is approximately 8 km thick.

The data from this instrument dates back to 1980. Analyses of the dataset constitutes one of the longest times series of mesospheric winter temperatues in the world.

Photo of 1 m 'Silver' Ebert-Fastie Spectrometer

PI: Fred Sigernes
Address: UNIS, P.O. Box 156, 9171 Longyearbyen, Norway
E-mail: fred.sigernes@unis.no
Phone/Fax: +47 79023335/01

Co-PI: C.S. Deehr
Address: Geophysical Institute, University of Alaska Fairbanks, 903 Koyokuk Drive, PO Box 757320, Fairbanks, Alaska 99775-7320, USA
E-mail: cdeehr@giuaf.gi.alaska.edu
Phone/Fax: 907 474 7473/907 474 7290

Instrument specifications
Time resolution: >5 minutes
Spatial coverage: zenith
Spatial resolution: 5 degrees
Spectral resolution: 4 Å (7250-8650)