Delivered-To: igsmail@igscb.jpl.nasa.gov Message-ID: <1090433692.40feb29cb998e@webmail.unr.edu> Date: Wed, 21 Jul 2004 11:14:52 -0700 From: Geoff Blewitt To: igsmail@igscb.jpl.nasa.gov Subject: [IGSMAIL-4978]: Fall AGU: Reference Frame Practice to Enhance Science Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit User-Agent: Internet Messaging Program (IMP) 4.0-cvs Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 21 Jul 11:14:53 PDT 2004 Message Number 4978 ****************************************************************************** Author: Geoff Blewitt, Zuheir Altamimi & Mike Craymer Dear Colleagues, (with apologies to those on multiple lists) We encourage your abstract submissions (web deadline: 9 September) to the following special Geodesy session of the Fall 2004 AGU meeting, to be held in San Francisco 13-17 December . We would like this session to be a forum on reference frame procedures that scientists actually use to compute station velocities or time series, and that are proving to be effective for scientific interpretation. The focus is not on producing station coordinates within a conventional frame, but rather on station kinematics for scientific investigations in practice, and so the concept of a "frame" here is intended to be very broad, the focus being on "practice". Session G09: Reference Frame Procedures in Practice to Enhance Scientific Investigations We solicit scientific investigators to present papers on the actual practice of reference frames to specific scientific problems. Scientific investigators do not necessarily apply the same conventional reference frame procedure to all scientific problems, but often apply various procedures appropriate to the signal under investigation. Reasons for selecting a specific procedure might be to improve signal to noise ratio in station coordinate time series, or to simplify the scientific interpretation by a physically useful choice of datum, or to simplify the analysis in cases where the choice of frame is irrelevant. Scientists often do not require accurate determination of station positions, but they more generally do require very precise knowledge of station kinematics. Reference frame procedures appropriate to the study of seasonal loading signals might be more relaxed than studies that also require scientific interpretation of secular loading signals. Frames used in practice for the study of secular tectonics might not be the same as those for the study of secular loading or GIA. Depending on the situation, frames procedures that produce globally-reference coordinate time series (such as fiducial-free precise point positioning) may be more or less effective for scientific interpretation of tectonics than regionally-filtered coordinate time series. We welcome papers that present results on the application of reference frame procedures to specific scientific problems, and also papers that discuss the effectiveness of different possible procedures appropriate to scientific problems over a wide variety of spatial and temporal scales. Our definition of “reference frame procedure” is intended to be broad, including spatial and temporal filtering schemes. Thank you for your consideration, Geoff Blewitt, Zuheir Altamimi, and Mike Craymer Session Conveners -- Dr Geoff Blewitt Research Professor University of Nevada, Reno +1-775-784-6691 extension 171 http://www.nbmg.unr.edu/staff/geoff.htm ------------------------------------------------- This mail sent through https://webmail.unr.edu