Subtleties of Estimating Scale Changes in Regional GPS Networks and Their Impact on Height Estimates.

Thomas Herring1, Timothy Ian Melbourne2, Mark H Murray3, Michael Floyd4, Walter Michael Szeliga2, Walter Michael Szeliga2, Robert W King5, David A Phillips6 and Christine Maria Puskas7, (1)Massachusetts Institute of Technology, Cambridge, United States, (2)Central Washington University, Ellensburg, WA, United States, (3)New Mexico Institute of Mining and Technology, Socorro, NM, United States, (4)Massachusetts Institute of Technology, Cambridge, MA, United States, (5)MIT, Cambridge, MA, United States, (6)UNAVCO, Inc. Boulder, Boulder, CO, United States, (7)UNAVCO, Inc., Boulder, CO, United States