****************************************************************************** dorismail 14-Dec-2020 10:23:06 Message No 1256 ****************************************************************************** Author: Kyriakos Balidakis Subject: vEGU2021: Numerical Weather Prediction Data for Space Geodesy Author: Kyriakos Balidakis Dear colleagues, Do you work with numerical weather prediction to model observations of=20 geodetic interest? Do you study weather-driven variations in crustal=20 deformation, the gravity field, atmospheric delays, or Earth's rotation? If yes, we would like to invite you to join us in sharing relevant=20 research during the next EGU General Assembly (online, April 19-30,=20 2021). Our session "Numerical Weather Prediction Data for Space Geodesy"=20 falls under the "Geodesy" block and is co-organized by "Atmospheric=20 Sciences" and "Hydrological Sciences". For the session description,=20 please visit { https://meetingorganizer.copernicus.org/EGU21/session/39901 } or read below, and to contribute, please turn in your abstract by=20 January 13, 2021, 13:00 CET. Should you have any questions, please do not hesitate to contact us. We look forward to having your research feature in our session! Best regards, Kyriakos Balidakis, Jean-Paul Boy, Henryk Dobslaw, and Richard Gross - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -=20 - - - - Session description G3.2: Numerical Weather Prediction Data for Space Geodesy Weather largely drives space geodetic sensor data, that is, signal delay=20 due to atmospheric refraction, as well as site displacements, Earth=20 rotation fluctuations and gravity field variations due to mass=20 redistribution within Earth=E2=80=99s fluid envelope (atmosphere, oceans, a= nd=20 continental hydrology). State-of-the-art numerical weather prediction=20 provides the resources to approximate these geodetic estimates either=20 for re-analysis or forecasting purposes, thus enhancing the related=20 geodetic analysis. The growing number and accuracy of meteorological=20 observations, the deeper understanding of the underlying dynamics, and=20 the allocation of high-performance computing facilities have rendered=20 modern numerical weather models capable of representing and predicting=20 the atmospheric state with unprecedented accuracy. While the fact that=20 more accurately represented driving agents (pressure, temperature,=20 humidity, and wind are but a few) result in more reliable geophysical=20 modeling holds true to a certain extend, it is critically important that=20 the derived geodetic models are utilized properly. Therefore, the fusion=20 approach is of particular interest. Sought are contributions from geodesists, astronomers, meteorologists,=20 and Earth system scientists working on the exploitation of weather=20 models to improve geodesy. We welcome - but not limit ourselves to -=20 contributions discussing the efficient handling of the ever-growing=20 hydrometeorological data volume stemming from increased spatio-temporal=20 resolutions, and studies utilizing meso-beta (e.g., ERA5), meso-gamma=20 scale (e.g., COSMO-DE) weather models or other means to approximate=20 parameters such as atmospheric delays, non-tidal geophysical loading=20 displacements, and length-of-day fluctuations, and fuse them with=20 geodetic observations from e.g., GNSS, very long baseline=20 interferometry, satellite laser ranging, and InSAR. --=20 Dr.-Ing. Kyriakos Balidakis Section 1.1, Space Geodetic Techniques Phone: +49 (0)331 288 1183 Fax: +49 (0)331 288 1111 Email: kyriakos.balidakis@gfz-potsdam.de ___________________________________ Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences Foundation under public law of the federal state of Brandenburg Telegrafenberg A17, D-14473 Potsdam