In this Session, we will discuss new sensor measurement and mission concepts that apply advanced techniques for the study of the gravitational field of the Earth on ground and in space. Novel developments in quantum physics can excellently be used for geodetic applications, where new technologies and concepts lead to enhanced capabilities for satellite geodesy and terrestrial gravity sensing. Terrestrial gravity anomalies will be determined by observing free-falling atoms (quantum gravimetry) instead of using falling corner cubes. Additionally, changes in the gravity field can also be derived from GNSS displacement which play an increasingly important role due to their cheap and easy deployment and large number of available stations. This will open the door for a vast bundle of applications such as fast local gravimetric surveys and exploration, and the observation of Earth system processes with high spatial and temporal resolution.
Furthermore, highly precise optical clocks connected by dedicated fiber links have reached an accuracy level to measure differences of the gravity potential over long distances (relativistic geodesy), that is interesting for geodesy now. In future, relativistic geodesy might be applied for defining and realizing height systems in a new way, locally as well as globally. Moreover, accurate clocks help to improve the accuracy of the International Atomic Time standard TAI. They are important for all space geodetic techniques as well as for the realization of reference systems and their connections. One example of increasing importance is positioning and navigation with GNSS for terrestrial and space applications.
Finally, laser-interferometric ranging between test masses in space with nanometer accuracy does also belong to those novel developments. GRACE-FO will demonstrate it, and in the future even more refined concepts (tracking a swarm of satellites, space gradiometry) will be realized.
We invite presentations to illustrate the principles and state of the art of those novel techniques and the application of the new methods for terrestrial and satellite geodesy (where local and global mass variations and surface deformations will be observed with unforeseen accuracy and resolution, variations that reflect changes in the Earth system), navigation and fundamental physics. We also welcome papers for further applications and invite contributions covering the theoretical description of the new methods, introducing novel theoretical concepts as well as new modelling schemes.

Convener: Jürgen Müller | Co-conveners: Arnaud Landragin, Helen Margolis, Roland Pail, Michel Van Camp, WenBin Shen, Sergei Kopeikin
| Thu, 11 Apr, 14:00–18:00
Room -2.91
| Attendance Fri, 12 Apr, 10:45–12:30
Hall X3

Thursday, 11 April 2019 | Room -2.91

Chairperson: Jürgen Müller
Quantum Gravimetry
14:00–14:15 |
| solicited
| Highlight
Franck Pereira Dos Santos
14:15–14:30 |
Bastian Leykauf, Anne Stiekel, Sascha Vowe, Benjamin Wiegand, Hartmut Wziontek, Axel Rülke, Markus Krutzik, and Achim Peters
14:30–14:45 |
Vitali Müller and the GRACE Follow-On LRI Team
14:45–15:00 |
Michael Murböck, Christoph Dahle, Grzegorz Michalak, Karl Neumayer, Rolf König, and Frank Flechtner
15:00–15:15 |
Matthias Weigelt, Vitali Müller, Gerhard Heinzel, Karsten Danzmann, and Balaji Devaraju
Relativistic Geodesy with Clocks
15:15–15:30 |
| Highlight
Sébastien Bize
15:30–15:45 |
Hu Wu, Annike Knabe, and Jürgen Müller
Coffee break
Chairperson: Wenbin Shen
16:15–16:30 |
Christian Lisdat, Jacopo Grotti, Silvio Bernd Koller, Sofia Herbers, Erik Benkler, Ali Al-Masoudi, Roman Schwarz, Sören Dörscher, Nils Huntemann, Richard Lange, Moustafa Abdel-Hafiz, Christian Tamm, Ekkehard Peik, Thomas Waterholter, Sebastian Koke, Alexander Kuhl, Gesine Grosche, Ludger Timmen, Heiner Denker, and Gulnarat Vishnyakova and the Chronometric Levelling Team PTB-MPQ
16:30–16:45 |
Dongdong Jiao and Tao Liu
16:45–17:00 |
Thomas Waterholter, Alexander Kuhl, Sebastian Koke, Gulnara Vishnyakova, Ronald Holzwarth, and Gesine Grosche
17:00–17:15 |
Mamoru Sekido, Kazuhiro Takefuji, Hideki Ujihara, Masanori Tsutsumi, Tetsuro Kondo, Eiji Kawai, Ryuichi Ichikawa, Hidekazu Hachisu, Nils Nemitz, Tetsuya Ido, Marco Pizzocaro, Filippo Bregolin, Filippo Levi, Alberto Mura, Cecilia Clivati, Giancalo Cerretto, Davide Calonico, Federico Perini, Monia Negusini, and Roberto Ricci and the INRiM-INAF-NICT Collaboration Project Team
17:30–17:45 |
Alexandre Belli, Pierre Exertier, Frank Lemoine, and Nikita Zelensky
17:45–18:00 |
Zhongping Zhang, Haifeng Zhang, Zhibo Wu, and Kai Tang