Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2007.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 : 15.01.2007, 00:00 UTC until 15.12.2007, 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 2007 01 15 00 54115.000 -7.456372796424483e-08 9.048214657554969e-08 6.995914369714279e-09 2007 02 15 00 54146.000 -2.032151255240935e-08 1.038911847209690e-07 6.267292125668690e-09 2007 03 15 00 54174.000 -3.640583492455084e-08 2.512611377393011e-08 6.790655855837503e-09 2007 04 15 00 54205.000 -7.720286527989139e-09 7.926925073593980e-08 7.510822151578753e-09 2007 05 15 00 54235.000 -1.516105931552874e-07 7.259945572893973e-08 7.638054402218979e-09 2007 06 15 00 54266.000 -6.057062365052530e-08 1.822589671271933e-07 6.953834448254555e-09 2007 07 15 00 54296.000 -1.440690724934053e-07 -1.741019296622891e-08 6.979390323680954e-09 2007 08 15 00 54327.000 -6.667618895829528e-08 1.324457480329276e-08 7.085007497589627e-09 2007 09 15 00 54358.000 -5.073781953355530e-08 -4.749066057668096e-09 7.399324704732922e-09 2007 10 15 00 54388.000 -9.198801194712805e-09 4.179506276609901e-08 6.916109079001824e-09 2007 11 15 00 54419.000 -5.324554590733738e-08 1.983500406570523e-08 6.959047250105225e-09 2007 12 15 00 54449.000 -5.447279651753680e-08 1.693840847131634e-07 6.355070357233936e-09