@article{fdi:010091963,
  title = {{S}ubsurface floats in the {F}ilchner {T}rough provide the first direct under-ice tracks of the circulation on shelf},
  author = {{S}all{\'e}e, {J}. {B}. and {V}ignes, {L}. and {M}ini{\`e}re, {A}. and {S}teiger, {N}. and {P}authenet, {E}tienne and {L}ourenco, {A}. and {S}peer, {K}. and {L}azarevich, {P}. and {N}icholls, {K}. {W}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ottom water formation in the {W}eddell {S}ea and mass loss from the {F}ilchner-{R}onne {I}ce {S}helf are tightly linked by the supply of {W}arm {D}eep {W}ater to the continental shelf. {H}eavy sea ice cover and icebergs restrict ship access and upper-ocean measurements by moorings, compelling us to try new sampling methods. {W}e present results from the first dedicated under-sea-ice float experiment tracking circulation on the continental shelf of the eastern {W}eddell {S}ea. {S}even {A}pex profiling floats were deployed in 2017 at three different locations on the eastern {W}eddell {S}ea continental shelf, targeting the inflowing modified {W}arm {D}eep {W}ater (m{WDW}), as well as the outflowing {I}ce {S}helf {W}ater ({ISW}). {T}he floats capture a warm m{WDW} regime with southward inflow over the eastern continental shelf and a cold {ISW} regime with a recirculation of {ISW} in the {F}ilchner {T}rough throughout the 4 years of observations. {W}e provide the first {L}agrangian in situ confirmation that the m{WDW} flowing onto the continental shelf follows two pathways: the eastern flank of the {F}ilchner {T}rough and a small trough on the shallow shelf farther east. {I}n the present circulation regime, this warm water is blocked from reaching the ice shelf cavity due to the presence of the thick {ISW} layer inside the {F}ilchner {T}rough. {T}he floats' trajectories and hydrography reveal the dynamically active front, flow reversal, and eddying motion between these two water masses along the eastern flank of the {F}ilchner {T}rough.},
  keywords = {{ANTARCTIQUE} ; {ATLANTIQUE} ; {WEDDELL} {MER}},
  booktitle = {},
  journal = {{O}cean {S}cience},
  volume = {20},
  numero = {5},
  pages = {1267--1280},
  ISSN = {1812-0784},
  year = {2024},
  DOI = {10.5194/os-20-1267-2024},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091963},
}