@InProceedings{SantiniSouWaiMueHin:2013:SeIcFo,
author = "Santini, Marcelo Freitas and Souza, Ronald Buss de and Wainer,
Ilana and Muelbert, Monica and Hindell, Mark",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Sea ice formation rate and temporal variation of temperature and
salinity at the vicinity of Wilkins ice shelf from data collected
by southern elephant seals in 2008",
booktitle = "Abstracts...",
year = "2013",
organization = "AGU Meeting of the Americas.",
keywords = "sea ice formation, temperature, salinity.",
abstract = "The use of marine mammals as autonomous platforms for collecting
oceanographic data has revolutionized the understanding of
physical properties of low or non-sampled regions of the polar
oceans. The use of these animals became possible due to
advancements in the development of electronic devices, sensors and
batteries carried by them. Oceanographic data collected by two
southern elephant seals (Mirounga leonina) during the Fall of 2008
were used to infer the sea-ice formation rate in the region
adjacent to the Wilkins Ice Shelf, west of the Antarctic Peninsula
at that period. The sea-ice formation rate was estimated from the
salt balance equation for the upper (100 m) ocean at a daily
frequency for the period between 13 February and 20 June 2008. The
oceanographic data collected by the animals were also used to
present the temporal variation of the water temperature and
salinity from surface to 300 m depth in the study area. Sea ice
formation rate ranged between 0,087 m/day in early April and 0,008
m/day in late June. Temperature and salinity ranged from -1.84 oC
to 1.60 oC and 32.85 to 34.85, respectively, for the upper 300 m
of the water column in the analyzed period. The sea-ice formation
rate estimations do not consider water advection, only temporal
changes of the vertical profile of salinity. This may cause
underestimates of the real sea-ice formation rate. The intense
reduction of sea ice rate formation from April to June 2008 may be
related to the intrusion of the Circumpolar Depth Water (CDW) into
the study region. As a consequence of that we believe that this
process can be partly responsible for the disintegration of the
Wilkins Ice Shelf during the winter of 2008. The data presented
here are considered a new frontier in physical and biological
oceanography, providing a new approach for monitoring sea ice
changes and oceanographic conditions in polar oceans. This is
especially valid for regions covered by sea ice where traditional
instruments deployed by research vessels cannot be used.",
conference-location = "Cancun, Mexico",
conference-year = "14-17 May, 2013",
label = "self-archiving-INPE-MCTI-GOV-BR",
targetfile = "santini_sea.pdf",
urlaccessdate = "27 abr. 2024"
}