ESMGFZ Products for Earth Rotation Prediction

• Autorzy: Dill Robert , Dobslaw Henryk , Thomas Maik

Identyfikatory

DOI

10.2478/arsa-2022-0022

• Konferencja: Proceedings of the Second Earth Orientation Parameters Prediction Comparison Campaign (2nd EOP PCC) Workshop, online, February 15-16, 2022
• Języki publikacji: EN

Abstrakty

EN

The Earth System Modelling Group of GeoForschungsZentrum Potsdam (ESMGFZ) provides geodetic products for gravity variations, Earth rotation excitations, and Earth surface deformations related to mass redistributions and mass loads in the atmosphere, ocean, and terrestrial water storage. Earth rotation excitation compiled as effective angular momentum (EAM) functions for each Earth subsystem (atmosphere, ocean, continental hydrology) are important for Earth rotation prediction. Especially the 6-day forecasts extending the model analysis runs offer essential information for the improvement of ultra-short-term Earth rotation predictions. In addition to the individual effective angular momentum function of each subsystem, ESMGFZ calculates a combined EAM prediction product. Adjusted to the official Earth orientation parameter (EOP) products IERS 14C04 and Bulletin A, this EAM prediction product allows to extrapolate the polar motion and Length-of-Day parameter time series for 90 days into the future via the Liouville equation. ESMGFZ submits such an EOP prediction to the 2nd EOPPCC campaign.

Słowa kluczowe

EN

effective angular momentum; ESMGFZ; earth rotation prediction; polar motion; length of day

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2022
• Tom: Vol. 57, Special Issue 1
• Strony: 254--261
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Dill Robert

• Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany

autor

Dobslaw Henryk

• Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany

autor

Thomas Maik

• Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany

Bibliografia

• Dill, R. (2008). Hydrological model LSDM for operational Earth rotation and gravity field variations, Scientific Technical Report, 08/09, GFZ, Potsdam, DOI:10.2312/GFZ.b103-08095. 7, 8, 37.
• Dill R., Klemann V., Martinec Z., Tesauro M. (2015) Applying local Green’s functions to study the influence of the crustal structure on hydrological loading displacements, Journal of Geodynamics, DOI:10.1016/j.jog.2015.04.005.
• Dobslaw H. (2016) Homogenizing surface pressure time series from operational numerical weather prediction models for geodetic applications, Journal of Geodetic Science, Vol. 6, No. 1, 61-68, DOI:10.1515/jogs-2016-0004.
• Dobslaw H., Bergmann-Wolf I., Dill R., Poropat L., Thomas M., Dahle C., Esselborn S., Konig ¨ R., Flechtner F. (2017) A new high-resolution model of non-tidal atmosphere and ocean mass variability for de-aliasing of satellite gravity observations: AOD1B RL06, Geophysical Journal International, 211, 1, 263-269, DOI:10.1093/gji/ggx302.
• Greatbatch R. J. (1994) A note on the representation of steric sea level in models that conserve volume rather than mass, J. Geophys. Res., 99, 12, 767-771, DOI:10.1029/94JC00847.
• Jungclaus J. H., Fischer N., Haak H., Lohmann K., Marotzke J., Matei D., Mikolajewicz U., Notz D., Von Storch J. S. (2013) Characteristics of the ocean simulations in the Max Planck Institute Ocean Model (MPIOM) the ocean component of the MPI-Earth system model, Journal of Advances in Modeling Earth Systems, Vol. 5, No. 2, 422-446.
• Tamisiea M. E., Hill E. M., Ponte R. M., Davis J. L., Velicogna I., Vinogradova N. T.(2010) Impact of self-attraction and loading on the annual cycle in sea level, Journal of Geophysical Research: Oceans, Vol. 115, No. C7, 1-15, DOI:10.1029/2009JC005687.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).