[1] Albertella A, Savcenko R, Janjić T, et al. 2012. High resolution dynamic ocean topography in the southern ocean from GOCE. Geophysical Journal Interna-tional, 190(2): 922–930. doi: 10.1111/j.1365-246X.2012.05531.x
[2] Andersen O, Knudsen P, Stenseng L. 2015. The DTU13 MSS (mean sea surface) and MDT (mean dynamic topography) from 20 years of Satellite Altimetry. In: Jin S, Barzaghi R, eds. IGFS 2014. International Association of Geodesy Symposia, Vol 144. Shanghai, China: Springer, Cham: 111–121
[3] Bingham R J, Haines K, Hughes C W. 2008. Calculating the ocean’s mean dynamic topography from a mean sea surface and a geoid. Journal of Atmospheric and Oceanic Technology, 25(10): 1808–1822. doi: 10.1175/2008JTECHO568.1
[4] Bingham R J, Haines K, Lea D. 2015. A comparison of GOCE and drifter-based estimates of the North Atlantic steady-state surface circulation. International Journal of Applied Earth Observation and Geoinformation, 35: 140–150. doi: 10.1016/j.jag.2014.03.012
[5] Bingham R J, Knudsen P, Andersen O, et al. 2011. An initial estimate of the North Atlantic steadystate geostrophic circulation from GOCE. Geophysical Research Letters, 38(1): L01606. doi: 10.1029/2010GL045633
[6] Brockmann J M, Schubert T, Mayer-Gürr T, et al. 2019. The Earth’s gravity field as seen by the GOCE satellite—An improved sixth release derived with the time-wise approach (GO_CONS _GCF_2_TIM_R6). GFZ Data Services
[7] Brockmann J M, Zehentner N, Höck E, et al. 2014. EGM_TIM_RL05: An independent geoid with centimeter accuracy purely based on the GOCE mission. Geophysical Research Letters, 41(22): 8089–8099. doi: 10.1002/2014GL061904
[8] Bruinsma S L, Förste C, Abrikosov O, et al. 2013. The new ESA satellite-only gravity field model via the direct approach. Geophysical Research Letters, 40(14): 3607–3612. doi: 10.1002/grl.50716
[9] Bruinsma S L, Förste C, Abrikosov O, et al. 2014. ESA’s satellite-only gravity field model via the direct approach based on all GOCE data. Geophysical Research Letters, 41(21): 7508–7514. doi: 10.1002/2014GL062045
[10] Feng Guiping, Jin Shuanggen, Reales J M S. 2013. Antarctic circumpolar current from satellite gravimetric models ITG-GRACE2010, GOCE-TIM3 and satellite altimetry. Journal of Geodynamics, 72: 72–80. doi: 10.1016/j.jog.2013.08.005
[11] Förste C, Abrykosov O, Bruinsma S, et al. 2019. ESA’s Release 6 GOCE gravity field model by means of the direct approach based on improved filtering of the reprocessed gradients of the entire mission (GO_CONS_GCF_2_DIR_R6). GFZ Data Services, https://doi.org/10.5880/ICGEM.2019.004
[12] Förste C, Schmidt R, Stubenvoll R, et al. 2008. The GeoForschungs Zentrum Potsdam/Groupe de Recherche de Gèodésie Spatiale satellite-only and combined gravity field models: EIGEN-GL04S1 and EIGEN-GL04C. Journal of Geodesy, 82(6): 331–346. doi: 10.1007/s00190-007-0183-8
[13] Haines K, Johannessen J A, Knudsen P, et al. 2011. An ocean modelling and assimilation guide to using GOCE geoid products. Ocean Science, 7(1): 151–164. doi: 10.5194/os-7-151-2011
[14] Jin Shuanggen, Feng Guiping, Andersen O. 2014. Errors of mean dynamic topography and geostrophic current estimates in China’s marginal seas from GOCE and satellite altimetry. Journal of Atmos-pheric and Oceanic Technology, 31(11): 2544–2555. doi: 10.1175/JTECH-D-13-00243.1
[15] Knudsen P, Andersen O, Maximenko N. 2019. A new ocean mean dynamic topography model, derived from a combination of gravity, altimetry and drifter velocity data. Advances in Space Research:
[16] Knudsen P, Bingham R, Andersen O B, et al. 2011a. Enhanced mean dynamic topography and ocean circulation estimation using GOCE preliminary models. In: Proceedings of the 4th International GOCE User Workshop. Munich, Germany: European Space Agency
[17] Knudsen P, Bingham R, Andersen O, et al. 2011b. A global mean dynamic topography and ocean circulation estimation using a preliminary GOCE gravity model. Journal of Geodesy, 85(11): 861–879. doi: 10.1007/s00190-011-0485-8
[18] Kvas A, Mayer-Gürr T, Krauss S, et al. 2019. The satellite-only gravity field model GOCO06s. GFZ Data Services, https://doi. org/10.5880/ICGEM.2019.002
[19] Laurindo L C, Mariano A J, Lumpkin R. 2017. An improved near-surface velocity climatology for the global ocean from drifter observations. Deep Sea Research Part I: Oceanographic Research Papers, 124: 73–92. doi: 10.1016/j.dsr.2017.04.009
[20] Lumpkin R, Grodsky S A, Centurioni L, et al. 2013. Removing spurious low-frequency variability in drifter velocities. Journal of Atmospheric and Oceanic Technology, 30(2): 353–360. doi: 10.1175/JTECH-D-12-00139.1
[21] Lumpkin R, Johnson G C. 2013. Global ocean surface velocities from drifters: Mean, variance, El Niño-Southern Oscillation response, and seasonal cycle. Journal of Geophysical Research: Oceans, 118(6): 2992–3006. doi: 10.1002/jgrc.20210
[22] Mayer-Gürr T, Behzadpur S, Ellmer M, et al. 2018. ITSG-Grace2018-monthly, daily and static gravity field solutions from GRACE. GFZ Data Services
[23] Pail R, Bruinsma S, Migliaccio F, et al. 2011. First GOCE gravity field models derived by three different approaches. Journal of Geodesy, 85(11): 819–843. doi: 10.1007/s00190-011-0467-x
[24] Pail R, Goiginger H, Schuh W D, et al. 2010. Combined satellite gravity field model GOCO01S derived from GOCE and GRACE. Geophysical Research Letters, 37(20): L20314. doi: 10.1029/2010GL044906
[25] Pavlis N K, Holmes S A, Kenyon S C, et al. 2008. An earth gravitational model to degree 2160: EGM2008. In: Proceedings of the 2008 General Assembly of the European Geosciences Union. Vienna, Austria: European Geosciences Union
[26] Rio M H, Mulet S, Picot N. 2014. Beyond GOCE for the ocean circulation estimate: Synergetic use of altimetry, gravimetry, and in situ data provides new insight into geostrophic and Ekman currents. Geophysical Research Letters, 41(24): 8918–8925. doi: 10.1002/2014GL061773
[27] Schaeffer P, Faugére Y, Legeais J F, et al. 2012. The CNES_CLS11 global mean sea surface computed from 16 years of satellite altimeter data. Marine Geodesy, 35(Sup1): 3–19. doi: 10.1080/01490419.2012.718231
[28] Siegismund F. 2013. Assessment of optimally filtered recent geodetic mean dynamic topographies. Journal of Geophysical Research: Oceans, 118(1): 108–117. doi: 10.1029/2012JC008149
[29] Sjöberg L E. 2005. A discussion on the approximations made in the practical implementation of the remove-compute-restore technique in regional geoid modelling. Journal of Geodesy, 78(11–12): 645–653
[30] Tsoulis D, Patlakis K. 2013. A spectral assessment review of current satellite-only and combined Earth gravity models. Reviews of Geophysics, 51(2): 186–243. doi: 10.1002/rog.20012