<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The hydrological contribution to decadal, inter-annual and multi-annual suppress polar motion derived from climate model as well as from GRACE (Gravity Recovery and Climate Experiment) data is discussed here for the period 2002.3-2016.0. The data set used here are Earth Orientation Parameters Combined 04 (EOP C04), Flexible Global Ocean-Atmosphere-Land System Model: Grid-point Version 2 (FGOAL-g2) and Global Land Data Assimilation System (GLDAS) climate models and GRACE CSR RL05 data for polar motion, hydrological and gravimetric excitation, respectively. Several Hydrological Angular Momentum (HAM) functions are calculated here from the selected variables: precipitation, evaporation, runoff, soil moisture, accumulated snow of the FGOALS and GLDAS climate models as well as from the global mass change fields from GRACE data provided by the International Earth Rotation and Reference System Service (IERS) Global Geophysical Fluids Center (GGFC).</p><p>The contribution of different HAM excitation functions to achieve the full agreement between geodetic observations and geophysical excitation functions of polar motion is studied here.</p></abstract>

The hydrological contribution to decadal, inter-annual and multi-annual suppress polar motion derived from climate model as well as from GRACE (Gravity Recovery and Climate Experiment) data is discussed here for the period 2002.3-2016.0. The data set used here are Earth Orientation Parameters Combined 04 (EOP C04), Flexible Global Ocean-Atmosphere-Land System Model: Grid-point Version 2 (FGOAL-g2) and Global Land Data Assimilation System (GLDAS) climate models and GRACE CSR RL05 data for polar motion, hydrological and gravimetric excitation, respectively. Several Hydrological Angular Momentum (HAM) functions are calculated here from the selected variables: precipitation, evaporation, runoff, soil moisture, accumulated snow of the FGOALS and GLDAS climate models as well as from the global mass change fields from GRACE data provided by the International Earth Rotation and Reference System Service (IERS) Global Geophysical Fluids Center (GGFC).The contribution of different HAM excitation functions to achieve the full agreement between geodetic observations and geophysical excitation functions of polar motion is studied here.

Hydrological Excitations of Polar Motion Derived from Different Variables of <italic>Fgoals − g</italic>2 Climate Model

Artificial Satellites

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Hydrological Excitations of Polar Motion Derived from Different Variables of 2 Climate Model

The hydrological contribution to decadal, inter-annual and multi-annual suppress polar motion derived from climate model as well as from GRACE (Gravity...

Hydrological Excitations of Polar Motion Derived from Different Variables of Fgoals − g2 Climate Model

Publié en ligne: 23 déc. 2016

Pages: 107 - 122

Reçu: 12 janv. 2016

Accepté: 25 oct. 2016

DOI: https://doi.org/10.1515/arsa-2016-0010

Mots clés
polar motion, Hydrological Angular Momentum, geodetic residuals

© 2016 Artificial Satellites

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Hydrological Excitations of Polar Motion Derived from Different Variables of Fgoals − g2 Climate Model

Publié en ligne: 23 déc. 2016

Pages: 107 - 122

Reçu: 12 janv. 2016

Accepté: 25 oct. 2016

DOI: https://doi.org/10.1515/arsa-2016-0010

Mots cléspolar motion, Hydrological Angular Momentum, geodetic residuals

© 2016 Artificial Satellites

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
polar motion, Hydrological Angular Momentum, geodetic residuals