Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2003.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 : 15.01.2003, 00:00 UTC until 15.12.2003, 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 2003 01 15 00 52654.000 -1.261713761326471e-07 9.707066052514940e-08 -1.200985598539865e-09 2003 02 15 00 52685.000 -1.018945931253970e-07 1.133109113991851e-07 -9.997135994525156e-10 2003 03 15 00 52713.000 -5.772443611875961e-08 1.202378157406989e-07 -1.534738828038291e-09 2003 04 15 00 52744.000 -3.319327747795615e-09 1.726530036258625e-07 -1.411012554498970e-09 2003 05 15 00 52774.000 -2.606225649669356e-08 6.238071121872672e-08 -9.179801901359528e-10 2003 06 15 00 52805.000 -8.483667350983828e-08 2.473754961626843e-07 -2.067356610113057e-09 2003 07 15 00 52835.000 -5.694547381242350e-08 9.574917985765350e-08 -1.456087909641876e-09 2003 08 15 00 52866.000 -3.271225084438489e-08 1.261591314355139e-07 -1.150902247679703e-09 2003 09 15 00 52897.000 -5.281721958493437e-08 7.649963251203980e-08 -1.732930608756334e-09 2003 10 15 00 52927.000 -4.052253310469496e-08 9.741074003756392e-08 -1.744236906641286e-09 2003 11 15 00 52958.000 -3.233014676057228e-08 9.439583349626805e-08 -2.064321465521589e-09 2003 12 15 00 52988.000 -6.648303854762406e-08 5.092172701885080e-08 -2.014889906074799e-09