@InProceedings{CasagrandeNobrSouz:2013:EvArAn,
author = "Casagrande, F. and Nobre, P. and Souza, R.",
title = "Evaluation of Arctic and Antarctic Sea Ice Extent between 1981 and
2012 using Satellite-derived data",
booktitle = "Extended Abstracts...",
year = "2013",
organization = "American Geophysical Union, Spring Meeting 2013. (abstract
#A31A-16)",
keywords = "Cryosphere, Sea ice.",
abstract = "Sea Ice is a key element of the cryosphere, mainly due to its
global influence on the heat and mass transfer processes. Its
capacity of isolation restricts the mass and energy transfers
between ocean and atmosphere, influences salinity and, by
consequence, de density of the upper layers of the ocean, that can
influence oceanic circulation and formation of deep waters. On the
last decades, Arctic and Antarctic sea ice have presented very
distinct tendencies in relation to variations in Sea Ice Extend.
Arctic Sea Ice is retreating moves very fast , contrasting with
the Antarctic sea ice, that presents a tendency of increase in
almost of of its regions. In this study, variations of the Arctic
and Antarctic sea ice extent were analyzed using satellite-derived
data. The data set used was NOAA Optimum Interpolation SST (Oi
SST), a global one degree latitude and longitude resolution data
set . The results indicate a tendency of increase in the Antarctic
Sea Ice, specially in the Ross and Weddell Seas, and a decrease in
the extent on Bellingshausen and Amundsen Seas. In the years 2006
and 2012, maximums in the Sea Ice extent were observed in
Antarctica. In contrast, Arctic Sea Ice presented a tendency of
decrease and minimum extent records were observed in the years
2007 and 2012. This type of analysis is important because sea ice
acts an important role in the thermal balance of the planet,
restricting the vertical fluxes of heat between ocean and
atmosphere and increasing the albedo, allowing an analysis of the
feedback albedo sea ice mechanism that contributes greatly to the
climatic changes.",
conference-year = "05/2013",
label = "self-archiving-INPE-MCTI-GOV-BR",
language = "en",
targetfile = "casagrande_evaluation.pdf",
urlaccessdate = "28 abr. 2024"
}