Terms of Reference
Purpose
The purpose of this regional sub-commission is to provide international focus
and cooperation for issues involving the horizontal, vertical, and
three-dimensional geodetic control networks of North America,
including Central America, the Caribbean and Greenland (Denmark).
Some of these issues include
- Densification of the ITRF reference frame network in North
America and promotion of its use
- Maintenance and future evolution of vertical datums (ellipsoidal
and orthometric), including NAVD88 and the International Great
Lakes Datum
- Collocation of different measurement techniques such as VLBI, SLR,
DORIS, GPS, etc.
- Effects of crustal motion, including tectonic motions along, e.g.,
the western coast of N.A. and in the Caribbean, and post-glacial
rebound
- Standards for the accuracy of geodetic positions
- Outreach to the general public through focused symposia, articles,
workshops and lectures and technology transfer to other groups,
particularly in N.A.
Structure
The membership of this regional sub-commission shall consist of:
- One representative from each country within North American and the Caribbean
- Chairpersons of each working group (WG) in this regional sub-commission
- Sub-Commission 1.3
national representatives from countries covered by this regional sub-commission
will be de facto members
The regional sub-commission will elect a Chairperson and, optionally,
a Secretary. It will also create working groups (WG) as necessary to
address specific issues. The preliminary terms of reference and
Chairperson of each WG will be established by the regional
sub-commission. The Chairperson of each WG will recruit further
members as required and define a formal charter.
Members
Mike Craymer (GSD/NRCan, Canada) -- Chair
Richard Snay (NGS/NOAA USA) -- Co-Chair
Per Knudsen (KMS, Denmark)
TBD (Mexico)
TBD (Caribbean)
Working Groups
Last revised: March 22, 2008
Webmaster: Mike Craymer
