@article{fdi:010084265,
  title = {{S}ea surface salinity reemergence in an updated {N}orth {A}tlantic in situ salinity dataset},
  author = {{F}rankignoul, {C}. and {K}estenare, {E}lodie and {R}everdin, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}onthly sea surface salinity ({SSS}) fields are constructed from observations, using objective mapping on a 1 degrees x 1 degrees grid in the {A}tlantic {O}cean between 30 degrees {S} and 50 degrees {N} in the 1970-2016 period in an update of the dataset of {R}everdin et al. {D}ata coverage is heterogeneous, with increased density in 2002 when {A}rgo floats become available, high density along {V}oluntary {O}bserving {S}hip lines, and low density south of 10 degrees {S}. {U}sing lag correlation, the seasonal reemergence of {SSS} anomalies is investigated between 20 degrees and 50 degrees {N} in 5 degrees x 5 degrees boxes during the 1993-2016 period, both locally and remotely following the displacements of the deep mixed layer waters estimated from virtual float trajectories derived from the daily {AVISO} surface geostrophic currents. {A}lthough {SSS} data are noisy, local {SSS} reemergence is detected in about one-half of the boxes, notably in the northeast and southeast, whereas little reemergence is seen in the central and part of the eastern subtropical gyre. {I}n the same period, sea surface temperature ({SST}) reemergence is found only slightly more frequently, reflecting the short data duration. {H}owever, taking geostrophic advection into account degrades the detection of remote {SSS} and even {SST} reemergence. {W}hen anomalies are averaged over broader areas, robust evidence of a second and third {SSS} reemergence peak is found in the northeastern and southeastern parts of the domain, indicating long cold-season persistence of large-scale {SSS} anomalies, whereas only a first {SST} reemergence is seen. {A}n oceanic reanalysis is used to confirm that the correlation analysis indeed reflects the reemergence of subsurface salinity anomalies.},
  keywords = {{S}alinity ; {N}orth {A}tlantic {O}cean ; {O}ceanic mixed layer ; {S}ea surface ; temperature ; {ATLANTIQUE} ; {ATLANTIQUE} {NORD}},
  booktitle = {},
  journal = {{J}ournal of {C}limate},
  volume = {34},
  numero = {22},
  pages = {9007--9023},
  ISSN = {0894-8755},
  year = {2021},
  DOI = {10.1175/jcli-d-20-0840.1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084265},
}