Daylight Time-Resolved Photographs of Lightning
RICHARD E. QRVILLE 1,
G. G. LALA 2, and
VINCENT P. IDONE 3
1 Department of Atmospheric Science, State University of New York at Albany, Albany 12222
2 Atmospheric Sciences Research Center, State University of New York at Albany
3 Department of Atmospheric Science, State University of New York at Albany
Lightning dart leaders and return strokes have been recorded in daylight with both good spatial resolution and good time resolution as part of the Thunder-storm Research International Program. The resulting time-resolved photographs are apparently equivalent to the best data obtained earlier only at night. Average two-dimensional return stroke velocities in four subsequent strokes between the ground and a height of 1400 meters were approximately 1.3 x 108 meters per second. The estimated systematic error is 10 to 15 percent.
Submitted on December 19, 1977
Revised on March 14, 1978
