Date: Tue, 21 Jan 2003 16:20:38 +0100 (MET) From: Hans van der Marel To: igsmail@igscb.jpl.nasa.gov Subject: [IGSMAIL-4237]: IUGG Sapporo - GPS-atmosphere related sessions Message-ID: Sender: owner-igsmail Precedence: bulk ****************************************************************************** IGS Electronic Mail 21 Jan 07:20:42 PST 2003 Message Number 4237 ****************************************************************************** Author: Hans van der Marel I would like to bring to your attention two GPS-atmosphere related sessions at the next IUGG meeting in Sapporo, Japan June 30 - July 11, 2003: JSM07 Application of GPS Techniques in the Atmosphere (IAMAS [ICMA], IAGA, IAG) - Wednesday July 2, 2003 GAII.03 Measurement Techniques in the Middle/Upper Atmosphere and Ionosphere (IAGA, ICMA) - Thursday July 3, 2003 You are cordialy invited to submit abstracts. The deadline for electronically submitted abstracts is January 30, 2003. Please ignore this message in case you have received it more than once. Hans van der Marel -- dr.ir. H. van der Marel, Mathematical Geodesy and Positioning (MGP), Faculty of Civil Engineering and Geosciences, Delft University of Technology, Thijsseweg 11, 2629 JA Delft, Netherlands. Phone/fax: ++31 (0)15 278 4907 / 3711, Email: H.vanderMarel@Geo.TUDelft.NL IUGG2003 Sapporo, Japan June 30 - July 11, 2003 JSM07 Application of GPS Techniques in the Atmosphere (IAMAS [ICMA], IAGA, IAG) Signals from GNSS (Global Navigation Satellite Systems) such as GPS and GLONASS received on the ground can effectively be used for monitoring the behavior of water vapor in the lower atmosphere. From GPS propagation delay in a moist atmosphere, the amount of precipitable water vapor is accurately estimated. Applying tomographic techniques three-dimensional distributions of water vapor can be derived from data of a dense GPS receiver network. GPS signals received on Low Earth Orbiting (LEO) satellites are used for an active limb-sounding of the atmosphere. Recent LEO missions such as GPS/MET, Oersted, CHAMP, SAC-C have achieved significant progress in measuring water vapor and temperature profiles in the troposphere and stratosphere. The GPS occultation technique is also applicable to the planetary boundary layer by using GPS receivers on top of high mountains, on balloons and aboard aircrafts. The GPS remote sensing has become a powerful tool for scientific research, and provided valuable data-sets for assimilation into climate and numerical weather prediction models. This symposium shall be a forum for discussing recent developments in retrieval techniques, new findings and applications in atmospheric research, as well as technical questions/solutions for operational monitoring of the atmosphere by ground, air and space based GNSS receivers. Convener: Toshitaka Tsuda, Radio Atmospheric Science Center, Kyoto Univ., Uji, Kyoto 611, Japan, tel: +81-774-33-2994, fax: +81-774-31-8463, tsuda@kurasc.kyoto-u.ac.jp Co-conveners: H. van der Marel (Mathematical Geodesy and Positioning, Delft Univ. of Technology, Netherlands), Alexander Gershunov (Scripps Inst. of Oceanography, Univ. of California San Diego, USA), Norbert Jakowski (German Aerospace Center, Germany) Deadlines for submission of abstracts: Postal submission of abstracts January 20, 2003 Electronic submission of abstracts January 30, 2003 http://www.jamstec.go.jp/jamstec-e/iugg/index.html GAII.03 Measurement Techniques in the Middle/Upper Atmosphere and Ionosphere (IAGA, ICMA) Observations of the dynamical, chemical and electromagnetic properties of the middle/upper atmosphere and ionosphere have been significantly improved in the last decades owing to development of new instruments and essential advance in retrieval and computer technique. The purpose of this symposium is to provide a forum for discussing recent accomplishments in remote-sensing measurements from ground and space. We welcome papers dealing with ground-based radio and optical techniques of the middle atmosphere, lower thermosphere and ionosphere, such as incoherent scatter, MST, MF and meteor radars, Rayleigh and resonance validation and comparison of new satellite instruments in flight and planned. In particular, we highlight recent development in GNSS (Global Navigation Satellite Systems) sounding of the ionosphere, e.g., ionospheric TEC mapping with a dense GPS receiver network, imaging/profiling of spatial/temporal structures of the E, F-region, and topside ionosphere by ground and space based GNSS receivers. Related Sessions: GAII.05 Convener: Toshitaka Tsuda, Radio Atmospheric Science Center, Kyoto Univ., Uji, Kyoto 611-0011, Japan, tel: +81-774-33-2994, fax: +81-774-31-8463, tsuda@kurasc.kyoto-u.ac.jp Co-conveners: Norbert Jakowski (German Aerospace Center, Germany), John C. Foster (Haystack Observatory, USA) Deadlines for submission of abstracts: Postal submission of abstracts January 20, 2003 Electronic submission of abstracts January 30, 2003 http://www.jamstec.go.jp/jamstec-e/iugg/index.html