Images

This is the cover of the September 2008 Photogrammetric Engineering and Remote Sensing Journal

This is the cover of the June 2006 Photogrammetric Engineering and Remote Sensing Journal

Graphical illustration of lidar pulse versus a lidar return

Landsat 7 imagery was used to create a full continent mosaic of Antarctica. 

Warren "Buz" Brown making second-order measurements using a Kern theodolite. The blind is to prevent temperature variations from affecting the instrument.

Warren "Buz" Brown making second-order measurements using a Kern theodolite. The blind is to prevent temperature variations from affecting the instrument.

USGS topographer Don Winstead working with a level in Hawaii.

USGS topographer Russ Curtis using a Wild N3 level.

Topographer Jim Tennant making measurements with a Wild T-2 theodolite on Mount Trumball in Arizona.