Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2014.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 : 15.01.2014, 00:00 UTC until 15.12.2014, 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 2014 01 15 00 56672.000 -3.121019093225682e-08 -2.365833134059768e-08 2.500549764392729e-09 2014 02 15 00 56703.000 8.793420059412323e-09 -1.653730227233712e-08 2.562908886780122e-09 2014 03 15 00 56731.000 -3.500762415651621e-08 -7.357642791381311e-09 2.643578757809224e-09 2014 04 15 00 56762.000 -1.635047373184339e-08 -3.162024408241455e-08 3.116234263802226e-09 2014 05 15 00 56792.000 -2.636017897830025e-08 1.169959074460016e-08 2.910407929189000e-09 2014 06 15 00 56823.000 -6.679624147074350e-08 -2.702658682731237e-08 2.904606333353590e-09 2014 07 15 00 56853.000 3.619396259858604e-08 -1.257555441530990e-07 3.009923467937798e-09 2014 08 15 00 56884.000 6.213480944256864e-08 1.036498200693812e-09 2.662028049488581e-09 2014 09 15 00 56915.000 -3.171403896878162e-08 -8.361908769920574e-08 3.087456284216520e-09 2014 10 15 00 56945.000 1.347598104234982e-08 -1.005438502546955e-07 2.874397704143404e-09 2014 11 15 00 56976.000 5.142838548313819e-08 -1.467960095570376e-08 2.449755288433193e-09 2014 12 15 00 57006.000 -1.294775248564014e-08 -2.675122689045341e-09 3.741231797107218e-09