Annotated Measurement Examples

Below are some example measurements to help you interpret the images in our lidar data archive. For more information, contact:

Prof. Thomas J. Duck
Department of Physics and Atmospheric Science,
Dalhousie University,
Halifax, Nova Scotia, Canada, B3H 3J5

Tel: (902)494-1456
Fax: (902)494-5191

Archived data is available here.

Aerosol extinction is roughly proportional to the total aerosol mass. The "normalization region" is required as a reference for the extinction calculation. Black regions in the images represent a loss of instrument sensivity, usually due to extinction of the laser beam by optically-thick clouds. Anything that looks like a vertical stripe is a measurement retrieval artifact, and should be ignored.

Example 1 Example 2