Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2019.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 : 15.01.2019, 00:00 UTC until 15.12.2019, 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 2019 01 15 00 58498.000 6.256247044409589e-08 -9.277144481623253e-08 -1.858090889339244e-09 2019 02 15 00 58529.000 6.757373702965096e-08 -6.903326178318580e-08 -2.581496529380324e-09 2019 03 15 00 58557.000 4.190679170230794e-08 -3.134389583133585e-08 -2.467639031601327e-09 2019 04 15 00 58588.000 7.031618735853253e-08 -5.852667351220477e-08 -2.671032877730159e-09 2019 05 15 00 58618.000 5.107508819596945e-08 -6.392369597666119e-08 -2.989600956245720e-09 2019 06 15 00 58649.000 2.340189848049872e-08 -2.268020026977668e-08 -3.530615527644963e-09 2019 07 15 00 58679.000 -3.210466153912518e-09 -5.752836009840133e-08 -3.886111239043252e-09 2019 08 15 00 58710.000 3.249047444043570e-08 -1.138192294828581e-07 -4.520472676943409e-09 2019 09 15 00 58741.000 7.690253045767293e-08 -1.098586248748052e-07 -4.807994023272286e-09 2019 10 15 00 58771.000 4.824683975382492e-08 -5.338389142831189e-08 -5.429360544731895e-09 2019 11 15 00 58802.000 5.581302991480583e-08 -6.263543022850266e-08 -5.435570420240544e-09 2019 12 15 00 58832.000 4.912723131976132e-08 -9.953299094024703e-08 -6.022136658799477e-09