Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2006.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 : 15.01.2006, 00:00 UTC until 15.12.2006, 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 2006 01 15 00 53750.000 -8.565686091852406e-08 1.332159431966680e-07 3.184827070342338e-09 2006 02 15 00 53781.000 -5.970829213131967e-08 1.924790629323771e-07 3.705976860224109e-09 2006 03 15 00 53809.000 -7.226960044527667e-08 1.802492349399787e-07 4.400705403477735e-09 2006 04 15 00 53840.000 -6.375860289161301e-08 1.032323145613279e-07 5.023212018042765e-09 2006 05 15 00 53870.000 -7.784525211390930e-08 1.695226639431095e-07 5.525886837807013e-09 2006 06 15 00 53901.000 -1.128645332390948e-07 1.916179940174524e-07 4.929741906610110e-09 2006 07 15 00 53931.000 -5.875551183012920e-08 4.176060695951357e-08 5.376928973010755e-09 2006 08 15 00 53962.000 -6.011136657783518e-08 6.801730280683487e-08 5.523835315091045e-09 2006 09 15 00 53993.000 -4.886946879861412e-08 -3.434318051511540e-08 6.012833890605097e-09 2006 10 15 00 54023.000 -1.864448002867986e-08 1.333979140048317e-07 6.465473472379035e-09 2006 11 15 00 54054.000 -8.179256180087115e-08 1.057490388127673e-07 5.964614993622535e-09 2006 12 15 00 54084.000 -3.797849275572030e-08 2.056199879417755e-07 6.329989631164497e-09