@article{fdi:010060624, title = {{T}he new {ESA} satellite-only gravity field model via the direct approach}, author = {{B}ruinsma, {S}. {L}. and {F}orste, {C}. and {A}brikosov, {O}. and {M}arty, {J}. {C}. and {R}io, {M}. {H}. and {M}ulet, {S}. and {B}onvalot, {S}ylvain}, editor = {}, language = {{ENG}}, abstract = {{R}eprocessed {G}ravity {F}ield and {S}teady-{S}tate {O}cean {C}irculation {E}xplorer ({GOCE}) gravity gradient data were combined with data from {L}aser {G}eodynamics {S}atellite ({LAGEOS}) 1/2 and {G}ravity {R}ecovery and {C}limate {E}xperiment ({GRACE}) to generate a satellite-only gravity field model to degree 260 using the direct approach, named {DIR}-{R}4. {W}hen compared to {E}arth {G}ravitational {M}odel 2008 ({EGM}2008), it is more accurate at low to medium resolution thanks to {GOCE} and {GRACE} data. {W}hen compared to earlier releases of {ESA} {GOCE} models, it is more accurate at high degrees owing to the larger amount of data ingested. {I}t is also slightly more accurate than {ESA}'s fourth release of the time-wise model ({TIM}-{R}4), as demonstrated by {GPS}/leveling, orbit determination tests, and an oceanographic evaluation. {A}ccording to the formal, probably too optimistic by a factor of 2-2.5, cumulated geoid (1.3cm) and gravity anomaly (0.4 m{G}al) errors at 100km resolution, the {GOCE} mission objectives have been reached.}, keywords = {satellite-only gravity field model ; {GOCE} ; geostrophic ocean circulation}, booktitle = {}, journal = {{G}eophysical {R}esearch {L}etters}, volume = {40}, numero = {14}, pages = {3607--3612}, ISSN = {0094-8276}, year = {2013}, DOI = {10.1002/grl.50716}, URL = {https://www.documentation.ird.fr/hor/fdi:010060624}, }