@article{fdi:010062045, title = {{O}bservations of the {U}shant front displacements with {MSG}/{SEVIRI} derived sea surface temperature data}, author = {{C}hevallier, {C}. and {H}erbette, {S}teven and {M}arie, {L}. and {L}e {B}orgne, {P}. and {M}arsouin, {A}. and {P}ere, {S}. and {L}evier, {B}. and {R}eason, {C}.}, editor = {}, language = {{ENG}}, abstract = {{H}ourly {S}ea {S}urface {T}emperature ({SST}) fields derived from the {S}pinning {E}nhanced {V}isible and {I}nfra-{R}ed {I}mager ({SEVIRI}) onboard {M}eteosat {S}econd {G}eneration ({MSG}) are frequently used in studies of the diurnal cycle of the ocean. {I}n this article, we focus on high frequency {SST} variability induced by tidal currents in the {I}roise {S}ea, west of {B}rittany ({F}rance). {T}his region is known for its strong tidal currents that are responsible in summer for the generation of an intense thermal front, the {U}shant front {W}e use hourly {MSG}/{SEVIRI} derived {SST} to compute the displacements of this front {I}n the northern part of the front, at 48.75 degrees {N}, we show that the longitudinal displacements of the front on subdiurnal time scales can be explained by the {L}agrangian advection induced by surface currents. {W}e also present maps of surface currents computed from hourly {SEVIRI} derived {SST} data using the {M}aximum {C}ross {C}orrelation ({MCC}) method. {C}omparison of {SEVIRI} derived velocities with velocities obtained with high frequency ({HF}) radar measurements and a hindcast numerical simulation ({M}ercator {O}cean) gives encouraging results in the northern part of the {U}shant front, near the {U}shant {I}sland. {W}ithin that region, the mean bias of the {SEVIRI} velocities was below 0.12 m.s(-1), with the standard deviation ranging from 0.26 ms(-1) during moderate tides to 0.49 m.s(-1) during spring tides. {F}urther offshore, where the surface thermal structures are weaker and the {SST} more homogeneous, currents derived using the {MCC} method were overestimated by 0.3 m.s(-1) and showed larger error standard deviations.}, keywords = {{T}idal {F}ront ; {H}igh frequency {S}eviri {SST} ; {F}ront {D}etection ; {T}idal advection observed from satellite ; {S}urface {C}urrents {R}econstruction}, booktitle = {}, journal = {{R}emote {S}ensing of {E}nvironment}, volume = {146}, numero = {{SI}}, pages = {3--10}, ISSN = {0034-4257}, year = {2014}, DOI = {10.1016/j.rse.2013.07.038}, URL = {https://www.documentation.ird.fr/hor/fdi:010062045}, }