Results 11 to 20 of about 106,138 (355)

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

Climate 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

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

Climate 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, R. McKay, J. Etourneau, J. Etourneau, F. J. Jimenez-Espejo, F. J. Jimenez-Espejo, A. Condron, A. Albot, X. Crosta, C. Riesselman, C. Riesselman, O. Seki, G. Massé, N. R. Golledge, N. R. Golledge, E. Gasson, D. P. Lowry, D. P. Lowry, N. E. Barrand, K. Johnson, K. Johnson, N. Bertler, N. Bertler, C. Escutia, R. Dunbar, J. A. Bendle   +25 more
doaj   +1 more source

Antarctic Sea Ice Area in CMIP6 [PDF]

Geophysical Research Letters, 2020
AbstractFully coupled climate models have long shown a wide range of Antarctic sea ice states and evolution over the satellite era. Here, we present a high‐level evaluation of Antarctic sea ice in 40 models from the most recent phase of the Coupled Model Intercomparison Project (CMIP6). Many models capture key characteristics of the mean seasonal cycle
Dirk Notz, Dirk Notz, François Massonnet, Cecilia M. Bitz, Edward W. Blockley, David A. Bailey, Siobhan O'Farrell, Lettie A. Roach, Caroline R. Holmes, Marilyn N. Raphael, Jakob Dörr, Thomas Rackow   +11 more
openaire   +6 more sources

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

Environmental 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

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

Remote 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, Yizhuo Chen, Qing Ji, Guoyuan Li, Lijian Shi, Musheng Lan, Zeyu Liang   +6 more
doaj   +1 more source

Thermochemistry of per‐ and polyfluoroalkyl substances

Journal of Computational Chemistry, Volume 44, Issue 4, Page 570-580, February 5, 2023., 2023
In this study, gas phase enthalpies of formation of three types of linear per‐ and polyfluoro alkyl substances (PFAS) were predicted using the correlation consistent composite approach (ccCA), DLPNO‐CCSD(T), B3LYP, and M06‐2X. The atomization and the isogyric reaction schemes were employed.
Timothé R. L. Melin, Preston Harell, Betoul Ali, Narasimhan Loganathan, Angela K. Wilson   +4 more
wiley   +1 more source

First results of Antarctic sea ice type retrieval from active and passive microwave remote sensing data [PDF]

The Cryosphere, 2023
Polar sea ice is one of the Earth's climate components that has been significantly affected by the recent trend of global warming. While the sea ice area in the Arctic has been decreasing at a rate of about 4 % per decade, the multi-year ice (MYI), also ...
C. Melsheimer, G. Spreen, Y. Ye, M. Shokr   +3 more
doaj   +1 more source

Analysis of Spatiotemporal Variations and Influencing Factors of Sea Ice Extent in the Arctic and Antarctic

Remote Sensing, 2023
The 44 years (1979–2022) of satellite-derived sea ice extent in the Arctic and Antarctic reveals the details and new trends in the process of polar sea ice coverage changes.
Xiaoyu Sun, Tingting Lv, Qizhen Sun, Zhuoming Ding, Hui Shen, Yi Gao, Yawen He, Min Fu, Chunhua Li   +8 more
doaj   +1 more source

Sensitivity of the Antarctic ice sheets to the warming of marine isotope substage 11c [PDF]

The Cryosphere, 2021
Studying the response of the Antarctic ice sheets during periods when climate conditions were similar to the present can provide important insights into current observed changes and help identify natural drivers of ice sheet retreat. In this context, the
M. Mas e Braga, M. Mas e Braga, J. Bernales, M. Prange, A. P. Stroeven, A. P. Stroeven, I. Rogozhina   +6 more
doaj   +1 more source

Impacts of Observed Extreme Antarctic Sea Ice Conditions on the Southern Hemisphere Atmosphere

Atmosphere, 2022
The Antarctic sea ice has undergone dramatic changes in recent years, with the highest recorded sea ice extent in 2014 and the lowest in 2017. We investigated the impacts of the observed changes in these two extremes of Antarctic sea ice conditions on ...
Zhu Zhu, Mirong Song
doaj   +1 more source