| Date: | 2010-12-09 09:40:00 | |
| Sender: | Richard Gross <Gross, Richard S (335N) <richard.s.gross@jpl.nasa.gov>> | |
| Subject: | [SLR-Mail] No. 1937: Earth Rotation Symposium at IUGG | |
| Author: | Richard Gross | |
| Content: | ******************************************************************************** SLR Electronic Mail 2010-12-09 09:40:00 UTC Message No. 1937 ******************************************************************************** Author: Richard Gross Subject: Earth Rotation Symposium at IUGG Dear Colleagues - As part of the XXV IUGG General Assembly that will be held in Melbourne, Au= stralia during 28 June - 07 July 2011 there will be an IAG Symposium on ”Mo= nitoring and Modelling Earth Rotation”. The description of the Symposium is= given below. On behalf of the conveners I would like to draw your attention to this Symp= osium and encourage you to participate in it. We are developing a rich prog= ram that will cover all aspects of the Earth´s rotation including theory, m= easurement, analysis, excitation, and integration with other geodetic measu= rements. We hope that you will be able to join us in Melbourne for this exc= iting Symposium. More information about the XXV IUGG General Assembly can b= e obtained from its web site at Please note that the deadline for submitting abstracts is 01 February 2011 = unless you are applying for a grant to assist in attending the IUGG in whic= h case the abstract deadline is 17 January 2011. Hope to see you in Melbourne! Best regards, Richard .......................................................... IAG Symposium G03=20 Lead Convenor: Richard Gross (United States of America)=20 Co-Convenors: Harald Schuh (Austria), Oleg Titov (Australia) = =20 Scope: The Earth=92s rotation is highly irregular. It varies on all observa= ble time scales, from subdaily to decadal and longer. The gravitational att= raction of the Sun, Moon, and planets causes the Earth to precess and nutat= e in space and, by periodically deforming the solid and fluid parts of the = Earth, causes periodic changes in the Earth=92s rate of rotation and wobble= . Torques acting on the solid Earth associated with the transport of mass w= ithin the Earth=92s atmosphere, hydrosphere, oceans, and core also change t= he Earth=92s rotation as does mass displacement occurring within the solid = Earth caused by earthquakes and other tectonic and non-tectonic motions lik= e glacial isostatic adjustment. Measurements of the Earth=92s rotation can = therefore be used to gain greater understanding of a wide variety of geophy= sical and geodynamical processes. Astrometric measurements of the Earth=92s= changing length-of-day have been available since the middle 1600s and of t= he Earth=92s wobble since the late 1800s. The development of the space-geod= etic measurement techniques of lunar and satellite laser ranging (LLR and S= LR), very long baseline interferometry (VLBI), global navigation satellite = systems (GNSS), and Doppler orbitography and radio positioning integrated b= y satellite (DORIS) starting in the late 1960s revolutionized the accuracy,= temporal resolution, and latency of Earth rotation measurements, a revolut= ion that continues today with the availability of new GNSS constellations a= nd signals and the development of new generation LLR, SLR, and VLBI station= s. This symposium will be a forum for discussing the monitoring and modelli= ng of the Earth=92s rotation and the use of Earth rotation measurements to = further our understanding of the Earth=92s complex, interacting systems. Keywords: earth rotation, precession, nutation, VLBI, LLR, SLR, GNSS, DORIS Review: All contributed abstracts will be reviewed by the Convenors Options: Contributed papers are optionally oral or poster presentations ...........................................................= From: ”Gross, Richard S (335N)” ******************************************************************************** |