Effective Angular Momentum Functions from geodetic residuals (mass+motion term) File name : GAHS_GravIS_COSTG_monthly_2011.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 : 15.01.2011, 00:00 UTC until 15.12.2011, 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 2011 01 15 00 55576.000 -1.058897112280079e-07 1.905515742182568e-09 2.000416688547026e-09 2011 02 15 00 55607.000 1.713326987465040e-08 1.268208303443392e-07 1.813662788191207e-09 2011 03 15 00 55635.000 2.142574089849562e-08 1.323500422674895e-07 2.724305570346791e-09 2011 04 15 00 55666.000 6.686505418028707e-10 3.726745894706272e-08 2.733076315320199e-09 2011 05 15 00 55696.000 7.731783700241172e-08 8.306834015511189e-08 3.061792025880841e-09 2011 06 15 00 55727.000 3.031952195401422e-08 1.037625151834218e-07 2.801127492970827e-09 2011 07 15 00 55757.000 3.305017010731521e-08 -1.236018435302385e-08 2.401326295420127e-09 2011 08 15 00 55788.000 -2.845456231148588e-08 4.783707775599458e-08 2.514496721579917e-09 2011 09 15 00 55819.000 -7.622111364736156e-08 -2.625634359019294e-08 2.790237483005058e-09 2011 10 15 00 55849.000 -1.395820423799651e-08 6.837422153787396e-08 3.029251243118175e-09 2011 11 15 00 55880.000 1.413516138606636e-09 5.338556754146000e-08 2.786707655153059e-09 2011 12 15 00 55910.000 2.590209854387447e-08 1.253574375732497e-07 3.278904640126958e-09