@article{fdi:010053377, title = {{A}n ocean modelling and assimilation guide to using {GOCE} geoid products}, author = {{H}aines, {K}. and {J}ohannessen, {J}. {A}. and {K}nudsen, {P}. and {L}ea, {D}. and {R}io, {M}. {H}. and {B}ertino, {L}. and {D}avidson, {F}. and {H}ernandez, {F}abrice}, editor = {}, language = {{ENG}}, abstract = {{W}e review the procedures and challenges that must be considered when using geoid data derived from the {G}ravity and steady-state {O}cean {C}irculation {E}xplorer ({GOCE}) mission in order to constrain the circulation and water mass representation in an ocean general circulation model. {I}t covers the combination of the geoid information with time-mean sea level information derived from satellite altimeter data, to construct a mean dynamic topography ({MDT}), and considers how this complements the time-varying sea level anomaly, also available from the satellite altimeter. {W}e particularly consider the compatibility of these different fields in their spatial scale content, their temporal representation, and in their error covariances. {T}hese considerations are very important when the resulting data are to be used to estimate ocean circulation and its corresponding errors. {W}e describe the further steps needed for assimilating the resulting dynamic topography information into an ocean circulation model using three different operational forecasting and data assimilation systems. {W}e look at methods used for assimilating altimeter anomaly data in the absence of a suitable geoid, and then discuss different approaches which have been tried for assimilating the additional geoid information. {W}e review the problems that have been encountered and the lessons learned in order the help future users. {F}inally we present some results from the use of {GRACE} geoid information in the operational oceanography community and discuss the future potential gains that may be obtained from a new {GOCE} geoid.}, keywords = {}, booktitle = {}, journal = {{O}cean {S}cience}, volume = {7}, numero = {1}, pages = {151--164}, ISSN = {1812-0784}, year = {2011}, DOI = {10.5194/os-7-151-2011}, URL = {https://www.documentation.ird.fr/hor/fdi:010053377}, }