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Recent Papers

Fournier et al. (2009): Tracking magma volume recovery at Okmok Volcano using GPS and an Unscented Kalman Filter [PDF]

Freymueller et al. (2008): Active deformation processes in Alaska, based on 15 years of GPS measurements [PDF]


Alaska Spatial Referance Page

Alaska doesn't (yet) have a formal Spatial Reference Center, but I will put some info of use to Land Surveyors and others using spatial reference data on this page. At the moment it just has some presentations.

PDF files of presentations given at UAF Distance Education center on March 12, 2009:
Basics of GPS -- how it works (2.6MB)
Summary of GPS applications (17MB)

Right now I am working on an update to the HTDP (Horizontal Time-Dependent Positioning) model for the NGS. This model is used by surveyors to correct survey positions for crustal motion.


Dr. Jeffrey T. Freymueller
Professor of Geophysics
Geophysical Institute
University of Alaska, Fairbanks
Fairbanks, AK 99775-7320

jfreymueller@alaska.edu
Phone 907-474-7286
Fax 907-474-7290
Office 413B Elvey