Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_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 -8.395439291825320e-08 1.688337776293092e-07 2.027607512213483e-10 2002 05 15 00 52409.000 -9.497513220411053e-08 3.999290593116463e-08 3.603416373192467e-10 2002 06 15 00 52440.000 -1.637543120837125e-07 6.773959764595865e-09 -4.866673149533280e-10 2002 07 15 00 52470.000 -1.834718389245892e-07 -9.161352142378751e-08 3.269242942138419e-10 2002 08 15 00 52501.000 -6.751468225450896e-08 1.418873281625413e-07 -1.068877694623872e-10 2002 09 15 00 52532.000 -5.554255806996502e-08 6.400215382739690e-08 -6.866362231753962e-10 2002 10 15 00 52562.000 -1.004235723445428e-07 4.027216723229502e-08 -9.678845771093453e-10 2002 11 15 00 52593.000 -1.463104446003038e-07 3.712076309603826e-08 -1.157927838878334e-09 2002 12 15 00 52623.000 -8.320738122194060e-09 1.586933010639200e-07 -1.305802200371198e-09