A2 – Commission A2 Rotation of the Earth
Description
Earth rotation is an interdisciplinary topic that bridges astronomy and geodesy. Precise knowledge of the Earth's rotation and its variations is needed for positioning and navigating objects on Earth and in space. And the analysis of Earth rotation variations provides important information about interactions between the various components of the Earth system and about global change phenomena.
The objectives of Commission A2 on Rotation of the Earth are to:
- Encourage and develop cooperation and collaboration in observation and theoretical studies of Earth orientation variations (the motions of the pole in the terrestrial and celestial reference systems and rotation about the pole).
- Serve the astronomical community by linking it to the official organizations that provide the International Terrestrial and Celestial Reference Systems/Frames (ITRS/ITRF and ICRS/ICRF) and Earth orientation parameters (EOP): International Association of Geodesy (IAG), International Earth Rotation and Reference Systems Service (IERS), International VLBI Service for Geodesy and Astrometry (IVS), International GNSS Service (IGS), International Laser Ranging Service (ILRS), International DORIS Service (IDS).
- Develop methods for improving the accuracy and understanding of Earth orientation variations and related reference systems/frames.
- Ensure agreement and continuity of the reference frames used for studying Earth orientation variations with other astronomical reference frames and their densification.
- Provide means of comparing observational and analysis methods and results to ensure accuracy of data and models and encourage the development of new observation techniques.
The Commission meets its objectives by fostering research and discussion on Earth rotation and reference frames, by organizing topical symposia and workshops, and by forming relevant Working Groups.
Under Division
Division A Fundamental Astronomy
Commission Working Groups
Commission A2 WG Consistent Realization of TRF, CRF and EOP
Commission A2 WG Improving Theories and Models of the Earth’s Rotation (ITMER)
Technische Universität München
Deutsches Geodätisches Forschungsinstitut (DGFI)
Arcisstr. 21
D-80333 Munich
Germany
Phone: +49 89 23031 1106
Email: florian
seitz
tum
de
Organization website: http://www.dgfi.tum.de
NCA adherence: Germany
Last updated:
April 16, 2020
Pulkovo Observatory RAS
Radioastronomy Researches Department
Pulkovskoe Shosse 65
196140 St Petersburg
Russian Federation
Phone: +7 812 363 7442
Email 1: malkin
gaoran
ru
Email 2: zmalkin
zmalkin
com
Personal website: http://www.zmalkin.com/
Organization website: http://www.gaoran.ru/
NCA adherence: Russian Federation
Last updated:
March 25, 2021
Universidad de Alicante/Universidad de León
Alicante/León
Spain
Email: alberto
escapa
ua
es
NCA adherence: Spain
Last updated:
September 17, 2020
Organizing Committee