Results 21 to 30 of about 123,794 (282)

Thickness distribution of Antarctic sea ice [PDF]

open access: yesJournal of Geophysical Research, 2008
Ship‐based observations are used to describe regional and seasonal changes in the thickness distribution and characteristics of sea ice and snow cover thickness around Antarctica. The data set comprises 23,373 observations collected over more than 2 decades of activity and has been compiled as part of the Scientific Committee on Antarctic Research ...
Worby, A. P. (Anthony P.)   +5 more
exaly   +3 more sources

An evaluation of Antarctic sea-ice thickness from the Global Ice-Ocean Modeling and Assimilation System based on in situ and satellite observations [PDF]

open access: yesThe Cryosphere, 2022
Antarctic sea ice is an important component of the Earth system. However, its role in the Earth system is still unclear due to limited Antarctic sea-ice thickness (SIT) data. A reliable sea-ice reanalysis can be useful to study Antarctic SIT and its role
S. Liao   +5 more
doaj   +1 more source

Multimodel Analysis of the Atmospheric Response to Antarctic Sea Ice Loss at Quadrupled CO2

open access: yesGeophysical Research Letters, 2019
Antarctic sea ice cover is projected to significantly decrease by the end of the twenty‐first century if greenhouse gas concentrations continue to rise, with potential consequences for Southern Hemisphere weather and climate.
H.C. Ayres, J.A. Screen
doaj   +2 more sources

Estimating summer sea ice extent in the Weddell Sea during the early 19th century [PDF]

open access: yesClimate of the Past, 2023
Over the past 3 decades, discordant trends in sea ice extent have been observed between the Arctic and Antarctic regions. Arctic sea ice extent has been characterised by a rapid decline, whereas Antarctic sea ice extent, while highly variable ...
E. Love, G. R. Bigg
doaj   +1 more source

Record low 2022 Antarctic sea ice led to catastrophic breeding failure of emperor penguins

open access: yesCommunications Earth & Environment, 2023
The spring season of 2022 saw record low sea ice extent in Antarctica that persisted throughout the year. At the beginning of December, the Antarctic sea ice extent was tracking with the all-time low set in 2021. The greatest regional negative anomaly of
P. Fretwell, A. Boutet, N. Ratcliffe
semanticscholar   +1 more source

Summertime linkage between Antarctic sea-ice extent and ice-shelf basal melting through Antarctic coastal water masses’ variability: a circumpolar Southern Ocean model study

open access: yesEnvironmental Research Letters, 2021
Recent observations indicate that two cryospheric components, namely the Antarctic sea ice and ice shelf over the Southern Ocean, have been changing over the decades. Here we analyze results from an ocean–sea ice–ice shelf model to examine variability in
Kazuya Kusahara
doaj   +1 more source

Mid-Holocene Antarctic sea-ice increase driven by marine ice sheet retreat [PDF]

open access: yesClimate of the Past, 2021
Over recent decades Antarctic sea-ice extent has increased, alongside widespread ice shelf thinning and freshening of waters along the Antarctic margin. In contrast, Earth system models generally simulate a decrease in sea ice.
K. E. Ashley   +25 more
doaj   +1 more source

Biological responses to change in Antarctic sea ice habitats

open access: yesFrontiers in Ecology and Evolution, 2023
Sea ice is a key habitat in the high latitude Southern Ocean and is predicted to change in its extent, thickness and duration in coming decades. The sea-ice cover is instrumental in mediating ocean–atmosphere exchanges and provides an important substrate
K. Swadling   +26 more
semanticscholar   +1 more source

An Improved Algorithm for the Retrieval of the Antarctic Sea Ice Freeboard and Thickness from ICESat-2 Altimeter Data

open access: yesRemote Sensing, 2022
ICESat-2 altimeter data could be used to estimate sea ice freeboard and thickness values with a higher measuring accuracy than that achievable with data provided by previous altimeter satellites.
Xiaoping Pang   +6 more
doaj   +1 more source

Recent changes in Antarctic Sea Ice [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
In contrast to the Arctic, total sea ice extent (SIE) across the Southern Ocean has increased since the late 1970s, with the annual mean increasing at a rate of 186×10 3  km 2 per decade (1.5% per decade; p <0 ...
Turner, John   +4 more
openaire   +3 more sources

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