Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_GFZ_monthly_2002.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 : 15.04.2002, 00:00 UTC until 15.12.2002, 00:00 UTC Temporal resolution : monthly (GravIS epochs; GAM and AAM averaged over each epoch interval) Number of data records : 9 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 2002 04 15 00 52379.000 -6.097503303902648e-08 1.416471374623924e-07 5.500124888673095e-10 2002 05 15 00 52409.000 -1.039605439322320e-07 8.008140623684988e-09 5.951951595983282e-10 2002 06 15 00 52440.000 -1.509133821433115e-07 9.238544326307856e-10 -1.267198670591362e-10 2002 07 15 00 52470.000 -1.659984721567461e-07 -9.205642442138626e-08 5.933306462520384e-10 2002 08 15 00 52501.000 -6.777390477511096e-08 1.206711891236491e-07 6.227494936600558e-11 2002 09 15 00 52532.000 -3.118148322740010e-08 5.745942149477152e-08 -4.539979158039805e-10 2002 10 15 00 52562.000 -8.599739442189957e-08 2.650283564314964e-08 -8.172514520646197e-10 2002 11 15 00 52593.000 -1.369917213122124e-07 1.097154604576564e-08 -1.025825268256986e-09 2002 12 15 00 52623.000 1.448746088217961e-08 1.460517850309721e-07 -1.158134400121557e-09