Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_GFZ_monthly_2024.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 : 15.01.2024, 00:00 UTC until 15.12.2024, 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 2024 01 15 00 60324.000 4.674633441146988e-08 -1.053939164802255e-07 -8.534525103129478e-09 2024 02 15 00 60355.000 1.425219501034052e-07 -1.445345042018641e-07 -8.573570445391869e-09 2024 03 15 00 60384.000 5.985324959597536e-08 -1.624485613434253e-07 -8.343651766715357e-09 2024 04 15 00 60415.000 4.500542215739767e-08 -8.256550772588561e-08 -8.120560917910771e-09 2024 05 15 00 60445.000 -2.154300622580408e-08 -1.050914780480609e-07 -8.184106273623445e-09 2024 06 15 00 60476.000 -1.675546959097998e-08 -9.107756323241206e-08 -8.281346311347470e-09 2024 07 15 00 60506.000 4.877821193587651e-08 -9.870323819835461e-08 -8.071324407948273e-09 2024 08 15 00 60537.000 1.571200611585833e-09 -2.280883436660114e-07 -7.799633544133587e-09 2024 09 15 00 60568.000 1.223362816820153e-07 -2.522666075080536e-07 -7.499787601118017e-09 2024 10 15 00 60598.000 1.241572920873369e-07 -1.811240000289808e-07 -7.422283709717421e-09 2024 11 15 00 60629.000 2.728592977324279e-08 -6.046131418627853e-08 -7.965635613196363e-09 2024 12 15 00 60659.000 2.846212879936544e-08 -2.269321961565266e-07 -7.661451843623704e-09