HR: 14:40h
AN: G43D-05    [Abstracts]
TI: Airborne Laser Swath Mapping Imagery for GeoEarthScope
AU: * Phillips, D A
EM: phillips@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Jackson, M E
EM: jackson@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80301, United States
AU: Meertens, C M
EM: meertens@unavco.org
AF: UNAVCO, 6350 Nautilus Drive, Boulder, CO 80301, United States
AB: UNAVCO is acquiring Airborne Laser Swath Mapping (a.k.a. airborne LiDAR) imagery for GeoEarthScope, a component of the EarthScope Facility project funded by the National Science Foundation. Guided by the UNAVCO GeoEarthScope LiDAR Working Group, these projects are designed and conducted based on community recommendations with respect to target identification and data collection practices so as to provide the EarthScope community with a rich, high quality data set capable of supporting a wide range of interests and applications. Anticipated applications range from operational, such as assisting with EarthScope instrument siting, to pioneering research in many fields of study including tectonophysics, geomorphology and paleoseismology to name a few. As of September 2007, two GeoEarthScope ALSM projects have been completed: 1) a 1500+ sq km project in northern California that focused on the San Andreas fault and other active structures, and 2) a ~450 sq km project in Death Valley that focused on the Death Valley-Fish Lake Valley fault system. The northern California data were collected during an extensive, highly collaborative field campaign in Spring 2007. ALSM data were collected by the National Center for Airborne Laser Mapping (NCALM) with a new generation Optech Gemini scanner at high pulse rate frequencies, and high rate GPS data were collected by regional networks such as PBO and by campaign systems deployed by a team of personnel from Ohio State University, UNAVCO, the U.S. Geological Survey and student volunteers from local universities. Also for this project, primary GeoEarthScope targets were expanded to include additional targets such as the Hayward fault through supplemental funding contributions from the USGS, the City of Berkeley, and the San Francisco Public Utilities Commission. The northern California dataset complements the previously acquired "B4" ALSM dataset in southern California by overlapping B4 coverage along the creeping section of the San Andreas fault and by using B4 style data collection methods. The Death Valley ALSM data were collected in Fall 2006, also by NCALM, as part of an NSF funded research project led by the University of Southern California (USC). Several additional GeoEarthScope ALSM projects are planned for completion prior to conclusion of the EarthScope MREFC in Fall 2008. Proposed future projects include targets in the Intermountain Seismic Belt (e.g. Wasatch fault), southern and eastern California, the Pacific northwest, and Alaska. Like all EarthScope data, GeoEarthScope ALSM imagery will be freely available to the community. This presentation addresses GeoEarthScope ALSM imagery activities from an overall programmatic and logistical perspective. Projects to date are highlighted and future plans are presented.
UR: http://www.unavco.org/geoearthscope
DE: 1200 GEODESY AND GRAVITY
DE: 1800 HYDROLOGY
DE: 8100 TECTONOPHYSICS
DE: 9350 North America
DE: 9820 Techniques applicable in three or more fields
SC: Geodesy [G]
MN: 2007 Fall Meeting