@Article{SantiniSouzWainMuel:2018:TeAnWa,
author = "Santini, Marcelo Freitas and Souza, Ronald Buss de and Wainer,
Ilana and Muelbert, M{\^o}nica M.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universidade de
S{\~a}o Paulo (USP)} and {Universidade Federl do Rio Grande
(FURG)}",
title = "Temporal analysis of water masses and sea ice formation rate west
of the Antarctic Peninsula in 2008 estimated from southern
elephant seals' SRDL-CTD data",
journal = "Deep-Sea Research Part Ii-Topical Studies In Oceanography",
year = "2018",
volume = "149",
pages = "58--69",
keywords = "massas de agua, Oceano Austral, taxa de forma{\c{c}}{\~a}o de
gelo marinho, water masses, sea ice formation rate, SRDL-CTD,
Antarctic peninsula.",
abstract = "As an alternative method to collect oceanographic data in the
polar oceans, especially during winter when traditional methods
are very difficult to be used, sea mammals can be tagged with
Satellite Relay Data Loggers with CTD capabilities (SRDLCTD).
Using data from nine southern elephant seals (SES; Mirounga
leonina) tagged during a field campaign of the MEOPBR project (the
Brazilian Counterpart to the Marine Mammal Exploration of the
Oceans Pole to Pole), this work presents a temporal analysis of
the water masses and the sea ice formation rate at the western
part of the Antarctic Peninsula (AP) during 2008. We found that
the seasonal and local processes controlling the surface and
intermediate layers of the ocean produced differences in the water
mass composition and the sea ice formation rates in our study
region. Sea ice formation rates ranged from less than 1 cm/day in
deep sea waters off the northern part of the AP to 14 cm/day at
the vicinity of ice shelves such as the Abbot and Wilkins ice
shelves, further south in the AP. Maximum sea ice formation rates,
as expected, occurred during autumn to winter. After the
successive collapse events of the Wilkins Ice Shelf (WIS) in 2008,
the sea ice formation rate endured significant reductions even
when sea ice concentrations were high in the region. These
reductions, observed by SES in the vicinity of WIS can be
associated with freshwater input derived from shelf collapses. The
presence of the Circumpolar Deep Water (CDW) over the continental
shelf west of the AP affected the sea ice formation rate by both
contributing to the observed low sea ice coverage and to the
acceleration of the ice shelf melting. Another process that
demonstrated influence on the formation of sea ice was the
advection of more saline waters in the oceanic layer considered
here for the application of salt balance equation. This advection
resulted in unrealistic sea ice formation rates in regions where
there was no sea ice cover. The data and results presented here
can be used to feed and to validate climate oceanatmosphere
coupled models. The data can be combined with other (more
traditional) meteorological and oceanographic data in order to
provide a better understanding of both oceanic and oceanatmosphere
coupled processes yet not very well known in our study region.",
doi = "10.1016/j.dsr2.2018.02.013",
url = "http://dx.doi.org/10.1016/j.dsr2.2018.02.013",
issn = "0967-0645",
label = "lattes: 0537824080913130 2 SantiniSouzWainMuel:2018:TeAnWa",
language = "en",
targetfile = "santini_temporal.pdf",
urlaccessdate = "28 abr. 2024"
}