Type: report

Article abstract: Ceanothus verrucosus, a rare species of ceanothus chaparral, occurs on City of San Diego land around the Lake Hodges reservoir in San Diego County. White flowers are a unique feature of this type of chaparral and these flowers are generally expected to bloom for a brief period during April. The objective of this project was to acquire digital and photographic imagery during the flowering period at two sites near Lake Hodges, georeference and mosaic the imagery, and map the extent of the C. verrucosus population using semi-automated image classification. For this project, Blackhawk Helicopters, Inc. provided the helicopter platform and Imagis provided the flight planning, aerial imaging, and image processing.