Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2013.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 : 15.01.2013, 00:00 UTC until 15.12.2013, 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 2013 01 15 00 56307.000 -5.623672721627900e-08 -6.788690529097979e-08 3.553752823826274e-09 2013 02 15 00 56338.000 2.228474486539024e-08 6.036381652400935e-08 3.428678537295305e-09 2013 03 15 00 56366.000 1.850347658670062e-08 4.970300936703133e-08 3.724253995917093e-09 2013 04 15 00 56397.000 -2.489647698392891e-08 2.711733497827770e-08 4.079598805551836e-09 2013 05 15 00 56427.000 3.576753188884390e-08 2.951676331761730e-08 3.716391955317139e-09 2013 06 15 00 56458.000 -2.816961878722853e-08 -4.402442570772202e-08 3.485784237271050e-09 2013 07 15 00 56488.000 -3.266859380706554e-08 3.533895311709449e-09 3.286707770657963e-09 2013 08 15 00 56519.000 -5.122275946287248e-08 -1.379994091824867e-07 3.349785605676059e-09 2013 09 15 00 56550.000 -7.115785977724957e-08 -1.524244552474589e-07 3.185034568069614e-09 2013 10 15 00 56580.000 -2.547339663674710e-09 -9.201731376003012e-08 3.215421779445078e-09 2013 11 15 00 56611.000 -4.195700526091583e-08 6.301110124301298e-08 2.942750329223082e-09 2013 12 15 00 56641.000 -2.889845808541365e-09 4.769691478455693e-08 2.410583008695038e-09