A key input to a global strain rate map will be GPS velocity data being compiled as part of the UNAVCO GPS Global Velocity Field (GPSVEL) Working Group. The goal of this working group, chaired by G. Blewitt (gblewittunr.edu) (Univ. of Nevada, Reno), is to synthesize data from numerous GPS studies to produce a combined, consistent, high quality global velocity field for the Earth's crust.

Introduction

GPS Site Motion Vector/Crustal Velocity Archive

Plate Motion Calculator

The Global Strain Rate Map project was initiated in 1998 by the International Lithosphere Program (ILP). Under the guidance of investigators W. Holt (wholtmantle.geo.sunysb.edu) (SUNY Stony Brook) and J. Haines (Cambridge University) the first steps towards the establishment of such a map have been made. A completed Global Strain Rate Map, determined by combining GPS, seismological and netotectonic data, will provide a large amount of information that is vital for our understanding of continental dynamics and for the quantification of seismic hazards.

Strain Rate Models Archive

GPS height positions are relative to the WGS84 reference ellipsoid, whereas traditional heights are relative to mean sea level. We supply a calculator using the EGM96 gravity model to make the correction.

EGM96 Correction Calculator

For interactive map creation and science product investigation we provide the Jules Verne Voyager map tool (requires Java), and for more casual image browsing the Voyager Junior image server (Javascript enhanced).

see the jules home page for more information

Last modified Friday, 21-Jul-2006 16:34:54 MDT

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