Instrument : Tower Camera (TWRCAM)

Instrument Categories
Surface Meteorology

Picture of the Tower Camera (TCAM)

General Overview

The tower camera in Barrow provides hourly images of ground surrounding the tower. These images may be used to determine fractional snow cover as winter arrives, for comparison with the albedo that can be calculated from downward-looking radiometers, as well as some indication of present weather. Similarly, during spring time, the camera images show the changes in the ground albedo as the snow melts. The tower images are saved in hourly intervals. In addition, two other cameras, the skydeck camera in Barrow and the piling camera in Atqasuk, show the current conditions at those sites.

Output Datastreams

  • twrcam3m : Three Meter Tower: video camera
  • twrcam40m : Forty Meter Tower: video camera

Primary Measurements

The following measurements are those considered scientifically relevant.


North Slope Alaska
NSAC1 Browse DataCentral Facility, Barrow AK
NSAC2 Browse DataCentral Facility, Atqasuk AK retired
ARM Mobile Facility
FKBM1 Browse Data Browse PlotsBlack Forest, Germany retired
GRWM1 Browse Data Browse PlotsGraciosa Island, Azores, Portugal retired
NIMM1 Browse Data Browse PlotsNiamey, Niger retired
PVCM1 Browse DataHighland Center, Cape Cod MA; AMF 1 retired
PYEM1 Browse Data Browse PlotsPoint Reyes, CA retired
 retired = Originating instrument has been retired at this location


Scott Smith
Brookhaven National Laboratory
(631) 344-7197

Martin Stuefer
University of Alaska, Fairbanks
(907) 474-6477