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

Małgorzata Wińska

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).
Author Małgorzata Wińska IDM
Małgorzata Wińska,,
- The Institute of Roads and Bridges
Journal seriesArtificial Satellites, Journal of Planetary Geodesy, ISSN 0208-841X, e-ISSN 2083-6104 [2083-6104]
Issue year2016
Vol51
No4
Pages107-122
Publication size in sheets0.75
Keywords in Englishpolar motion; Hydrological Angular Momentum; geodetic residuals
DOIDOI:10.1515/arsa-2016-0010
Languageen angielski
Score (nominal)8
ScoreMinisterial score = 6.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 8.0, 28-11-2017, ArticleFromJournal
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