Results 11 to 20 of about 4,621 (211)

Characterization of Campylobacter spp. isolated from wild birds in the Antarctic and Sub-Antarctic. [PDF]

open access: yesPLoS ONE, 2018
A lack of knowledge of naturally occurring pathogens is limiting our ability to use the Antarctic to study the impact human-mediated introduction of infectious microorganisms have on this relatively uncontaminated environment.
Håkan Johansson   +16 more
doaj   +1 more source

Preliminary Appraisal of a Correlation Between Glaciations and Large Igneous Provinces Over the Past 720 Million Years

open access: yesGeophysical Monograph Series, Page 169-190., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Nasrrddine Youbi   +9 more
wiley  

+2 more sources

Mapping lichen distribution on the Antarctic Peninsula using remote sensing, lichen spectra and photographic documentation by citizen scientists [PDF]

open access: yesPolar Research, 2015
On the Antarctic Peninsula, lichens are the most diverse botanical component of the terrestrial ecosystem. However, detailed information on the distribution of lichens on the Antarctic Peninsula region is scarce, and the data available exhibit ...
Paula Casanovas   +3 more
doaj   +1 more source

Sightings of Antarctic minke whales, Balaenoptera bonaerensis, near the Kiev Peninsula (West Antarctica) during the summer period of 2019

open access: yesУкраїнський антарктичний журнал, 2020
Antarctic Peninsula region is experiencing one of the fastest rates of climate change on Earth. Its waters are known as important feeding grounds for the Antarctic minke whales (Balaenoptera bonaerensis).
O. Savenko
doaj   +1 more source

High-resolution spatio-temporal analysis of snowmelt over Antarctic Peninsula ice shelves from 2015 to 2021 using SAR images

open access: yesInternational Journal of Digital Earth, 2023
Ice shelves play an essential role in the dynamics of the Antarctic ice sheet. The surface meltwater is important, as it can irreversibly weaken ice shelves by exerting additional hydrostatic pressure.
Qi Zhu   +6 more
doaj   +1 more source

Variability of extreme precipitation in West Antarctica and its response to the Amundsen Sea Low changes

open access: yesУкраїнський антарктичний журнал, 2023
Changes in precipitation extremes over West Antarctica and the Antarctic Peninsula belong to the observed consequences of current climate change. We discuss the spatio-temporal patterns of extreme precipitation and their relationships with the Amundsen ...
L. Pysarenko   +2 more
doaj   +1 more source

Correlation and interaction between temperature and freeze-thaw in representative regions of Antarctica

open access: yesInternational Journal of Digital Earth, 2022
As the most sensitive and direct indicator of global climate change, the freezing and thawing of the Antarctic ice sheet is of great significance for research on surface mass and energy balance.
Dong Liang   +4 more
doaj   +1 more source

Analysis of GNSS Time Series Recorded on South Shetland Island and Antarctic Peninsula during the Geodynamic Activity in 2020 of the Orca Underwater Volcano (Brandfield Sea Rift, Antarctica)

open access: yesEngineering Proceedings, 2023
The region defined by the South Shetland Islands, Bransfield Sea, and Antarctic Peninsula has complex geodynamic activity resulting from the active subduction process of the Phoenix Plate under the Antarctic Plate.
Belén Rosado   +9 more
doaj   +1 more source

Antarctic skin temperature warming related to enhanced downward longwave radiation associated with increased atmospheric advection of moisture and temperature

open access: yesEnvironmental Research Letters, 2021
We investigate linear trends in Antarctic skin temperatures (temperatures from about the top millimeter of the surface) over the four seasons using ERA5 ensemble mean reanalysis data. During 1950–2020, statistically significant warming occurred over East
Kazutoshi Sato, Ian Simmonds
doaj   +1 more source

Aerobiology in High Latitudes: Evidence of Bacteria Acting as Tracer of Warm Air Mass Advection reaching Northern Antarctic Peninsula [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2023
Despite the extent use of geochemical tracers to track warm air mass origin reaching the Antarctic continent, we present here evidences that microorganisms being transported by the atmosphere and deposited in fresh snow layers of Antarctic ice sheets do ...
MARCIO CATALDO   +10 more
doaj   +1 more source

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