Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_GFZ_monthly_2011.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 : 15.01.2011, 00:00 UTC until 15.12.2011, 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 2011 01 15 00 55576.000 -1.022083855903340e-07 -2.052264980759447e-09 2.224129794029580e-09 2011 02 15 00 55607.000 9.678115319328443e-09 1.194883459849676e-07 1.997859984622531e-09 2011 03 15 00 55635.000 2.028926656342412e-08 1.242931660698146e-07 2.941157149735663e-09 2011 04 15 00 55666.000 1.572253572735063e-08 5.823802510391537e-08 2.952089972047631e-09 2011 05 15 00 55696.000 8.367634852626467e-08 9.249632944508548e-08 3.346708998406280e-09 2011 06 15 00 55727.000 2.314821828547546e-08 1.089462384624892e-07 3.107687367830462e-09 2011 07 15 00 55757.000 3.141529776859798e-08 1.422189298889284e-08 2.524895241535312e-09 2011 08 15 00 55788.000 -2.289817696955288e-08 4.706194440654876e-08 2.564228306878241e-09 2011 09 15 00 55819.000 -6.387518713464290e-08 -2.921715403890116e-08 2.788849651185778e-09 2011 10 15 00 55849.000 -9.039214553912710e-09 8.079273698036947e-08 3.117116245143938e-09 2011 11 15 00 55880.000 -5.843684832808232e-10 5.431953296782969e-08 2.939413631620404e-09 2011 12 15 00 55910.000 5.639703531743639e-09 1.044313761016432e-07 3.397751214844283e-09