Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_GFZ_monthly_2004.asc File contents : Effective angular momentum functions from geodetic excitation File units : dimensionless earth rotation excitation functions Issue date : 2026-10-27 References : Stumpe et al. (2027) Closing Mass-Consistent Earth Angular Momentum Budgets: Impact of Oceanic Excitation Uncertainty Contact : Lone Stumpe (stumpe@gfz.de), Robert Dill (dill@gfz.de) Affiliation : GFZ Helmholtz Centre for Geosciences, Potsdam, Germany, Section 1.3: Earth System Modelling Temporal domain : 15.01.2004, 00:00 UTC until 15.12.2004, 00:00 UTC Temporal resolution : monthly (GravIS epochs; GAM and AAM averaged over each epoch interval) Number of data records : 12 Subtracted mean values : mean of each component over total period of all yearly files Notes : These G-AHS data are constructed based on a set of consistently processed Earth rotation excitation functions and the geodetic angular momentum (GAM) derived from the 20 C04 series from the International Earth Rotation and Reference System Service (IERS) G-AHS = GAM - (AAM + HAM + SLAM). For the underlying excitation functions and the calculation of the GAM, see Stumpe et al. (2027) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- YYYY MM DD HH MJD G-AHS (mass + motion) x-component y-component z-component 2004 01 15 00 53019.000 -5.999243090387526e-08 2.091713200112848e-07 -1.425484798403912e-09 2004 02 15 00 53050.000 -9.347404504763953e-08 2.396627781666691e-08 -1.669533223966731e-09 2004 03 15 00 53079.000 -4.786863846394646e-08 6.535324516586158e-08 -1.231391020278591e-09 2004 04 15 00 53110.000 -4.599786348583596e-08 1.246953712286871e-07 -1.126149482867079e-09 2004 05 15 00 53140.000 -1.937542322032256e-07 -2.131858549919565e-08 -6.980174095707010e-10 2004 06 15 00 53171.000 -1.040073590488654e-07 7.774907055215889e-08 -7.930735874675315e-10 2004 07 15 00 53201.000 -5.848812473193218e-08 5.524305759060281e-08 -1.460832202037472e-09 2004 08 15 00 53232.000 -1.155715977480832e-08 5.345045607867425e-08 -1.196647951420407e-09 2004 09 15 00 53263.000 -9.456424517287245e-08 2.302645911990386e-08 -1.312829866060811e-09 2004 10 15 00 53293.000 -3.886730768199494e-08 5.179190247683760e-08 -1.126579292530047e-09 2004 11 15 00 53324.000 -1.762072830855405e-08 1.114858925976888e-07 -6.522996827949551e-10 2004 12 15 00 53354.000 -1.211539499430037e-07 1.103009063548609e-07 -1.029039200493659e-10