Dear colleagues,

for your information the following session will be held at the next 
AGU Fall Meeting, San Francisco, December 5-9, 2005.

The deadline for abstract is September 8 and is now approaching 
rapidly.

G11: Challenges in the Determination and Maintenance of an Accurate 
and Reliable Terrestrial Reference Frame
Conveners: Christopher Cox, Pascal Willis, Alexander Franklin Mayer


Global and temporally continuous monitoring of sea-surface and 
ice-surface topography, gravity field changes, and ground motions 
needs to be conducted in a uniform terrestrial reference frame. 
Development of an integrated and uniform reference frame requires 
precise modeling of the corrections as well as estimation of suitable 
empirical parameters that allow the different technologies to 
contribute without contaminating the resulting reference frame with 
errors. GPS, SLR, VLBI, and DORIS network observations all contribute 
to solution development, with overlapping but not redundant 
contributions. The solution process is complicated by the non-uniform 
temporal and spatial distribution of the geodetic networks. This 
session will focus on the geodetic networks, the modeling challenges 
in consistently merging these data sets to support the end use 
applications, as well as the effects of network evolution. We solicit 
contributions on significance to geophysics of long-term stability 
and continuity as well as papers addressing new/emerging geodetic 
requirements drawn from future geophysical data applications. 


more details on 
http://www.agu.org/meetings/fm05/?pageRequest=search&show=detail&sessid=406

-- 
Pascal Willis
Jet Propulsion Laboratory, MS 238-646   Ph : 1-818-393-4748
4800 Oak Grove Drive                    FAX: 1-818-393-4965
Pasadena CA 91109                       Em : Pascal.R.Willis@jpl.nasa.gov