Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2022.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 : 15.01.2022, 00:00 UTC until 15.12.2022, 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 2022 01 15 00 59594.000 3.837130737511503e-08 -7.204527651646753e-08 -9.617351403527908e-09 2022 02 15 00 59625.000 2.632393776190518e-09 -4.832948237602077e-08 -9.597387447878642e-09 2022 03 15 00 59653.000 1.345954582930168e-07 -6.458550054348945e-08 -9.670307800177308e-09 2022 04 15 00 59684.000 1.321519503370449e-07 -5.745272878248492e-08 -9.597076216658621e-09 2022 05 15 00 59714.000 6.496125738327528e-08 -1.207092921775216e-07 -9.185484080742863e-09 2022 06 15 00 59745.000 -2.640494977902636e-08 -3.302344413867936e-08 -9.081221842799334e-09 2022 07 15 00 59775.000 5.602596886997412e-08 -3.875347241971248e-08 -8.929389828557079e-09 2022 08 15 00 59806.000 6.333629320594098e-08 -5.433591510514082e-11 -9.097561286642888e-09 2022 09 15 00 59837.000 5.977269534313700e-08 -2.926204710440678e-08 -8.522177827395878e-09 2022 10 15 00 59867.000 3.237848033596206e-08 -1.103677084696892e-07 -8.540602173729783e-09 2022 11 15 00 59898.000 1.240673247433842e-07 -1.299210168166651e-08 -8.877695004724170e-09 2022 12 15 00 59928.000 3.525010649299398e-08 -4.874330572678647e-08 -8.715486465436128e-09