Results 1 to 10 of about 2,475,812 (303)

Records of Parochlus steinenii in the Maritime Antarctic and sub-Antarctic regions [PDF]

ZooKeys, 2021
This study provides the summary of the reports of the geographical distribution in the Maritime Antarctic and sub-Antarctic regions of Parochlus steinenii (Gercke, 1889) (Diptera, Chironomidae), the only flying insect occurring naturally in the Antarctic
Melisa Gañan, Tamara Contador, Javier Rendoll, Felipe Simoes, Carolina Pérez, Gillian Graham, Simón Castillo, James Kennedy, Peter Convey   +8 more
doaj   +9 more sources

Spatial-temporal variations of one-year ice in Antarctic different regions, 1988–2020

Ecological Indicators, 2023
In order to increase the comparability of Antarctic sea ice changes, we proposed a new method to quantitatively assess the spatial–temporal variation characteristics of Antarctic one-year ice based on daily Antarctic sea ice concentration data provided ...
Xingdong Wang, Hailong Zhou, Mingzhu Ji
doaj   +3 more sources

Decoupling of the Surface and Bottom‐Intensified Antarctic Slope Current in Regions of Dense Shelf Water Export

Geophysical Research Letters, 2023
The Antarctic Slope Current is guided by the topographic gradient of the Antarctic continental slope and creates a dynamical barrier between the continental shelf and the open ocean.
Wilma G. C. Huneke, Adele K. Morrison, Andrew McC. Hogg   +2 more
doaj   +2 more sources

Mass balance, ice volume, and flow velocity of the Vestre Grønfjordbreen (Svalbard) from 2013/14 to 2019/20

Arctic, Antarctic, and Alpine Research, 2022
The first seven years (2013/14–2019/20) of annual and seasonal mass-balance monitoring on the glacier Vestre Grønfjordbreen (16.4 km2), located south of the town of Barentsburg on Spitsbergen, Svalbard, are presented.
Anton V. Terekhov, Sergei Verkulich, Alexander Borisik, Vasiliy Demidov, Uliana Prokhorova, Kseniia Romashova, Mikhail Anisimov, Olga Sidorova, Gleb Tarasov   +8 more
doaj   +1 more source

Two decades of mass-balance observations on Aldegondabreen, Spitsbergen: interannual variability and sensitivity to climate change

Annals of Glaciology, 2023
Aldegondabreen is a relatively small (5.3 km2) land-terminating glacier located in Nordeskiöld Land of Svalbard, ~10 km southwest of Barentsburg. Cumulative mass balance during 2002–20 equalled −21.79 m w.e., which corresponds to 37% of the total mass ...
Anton Terekhov, Uliana Prokhorova, Sergey Verkulich, Vasiliy Demidov, Olga Sidorova, Mikhail Anisimov, Kseniia Romashova   +6 more
doaj   +1 more source

Heat balance of a low-elevated Svalbard glacier during the ablation season: A case study of Aldegondabreen

Arctic, Antarctic, and Alpine Research, 2023
On the basis of in situ weather observations and a physical-based model, verified by a glaciological method, this article investigates the surface energy balance of the Aldegondabreen glacier during the summer melt season of 2021. Aldegondabreen (5.3 km2)
Uliana Prokhorova, Anton Terekhov, Boris Ivanov, Vasiliy Demidov   +3 more
doaj   +1 more source

Molecular Detection of Histoplasma capsulatum in Antarctica

Emerging Infectious Diseases, 2022
We detected Histoplasma capsulatum in soil and penguin excreta in the Antarctic Peninsula by sequencing after performing species-specific PCR, confirming previous observations that this pathogen occurs more broadly than suspected.
Lucas Machado Moreira, Wieland Meyer, Márcia Chame, Martha Lima Brandão, Adriana Marcos Vivoni, Juana Portugal, Bodo Wanke, Luciana Trilles   +7 more
doaj   +1 more source

Topography, ice thickness and ice volume of the glacier Pedersenbreen in Svalbard, using GPR and GPS [PDF]

Polar Research, 2014
Pedersenbreen is a small valley glacier (ca. 6 km2 in 2009), ending on land, located in north-western Spitsbergen, Svalbard. Ground-based radio-echo sounding in April 2009, using a 100-MHz commercial radar and a self-made low-frequency radar, revealed a ...
Songtao Ai, Zemin Wang, Dongchen E, Kim Holmén, Zhi Tan, Chunxia Zhou, Weijun Sun   +6 more
doaj   +1 more source

Antarctic climate variability on regional and continental scales over the last 2000 years [PDF]

Climate of the Past, 2017
Climate trends in the Antarctic region remain poorly characterized, owing to the brevity and scarcity of direct climate observations and the large magnitude of interannual to decadal-scale climate variability.
B. Stenni, B. Stenni, M. A. J. Curran, M. A. J. Curran, N. J. Abram, N. J. Abram, A. Orsi, S. Goursaud, S. Goursaud, V. Masson-Delmotte, R. Neukom, H. Goosse, D. Divine, D. Divine, T. van Ommen, T. van Ommen, E. J. Steig, D. A. Dixon, E. R. Thomas, N. A. N. Bertler, N. A. N. Bertler, E. Isaksson, A. Ekaykin, A. Ekaykin, M. Werner, M. Frezzotti   +25 more
doaj   +1 more source

Diversity and distribution patterns in high southern latitude sponges. [PDF]

PLoS ONE, 2012
Sponges play a key role in Antarctic marine benthic community structure and dynamics and are often a dominant component of many Southern Ocean benthic communities.
Rachel V Downey, Huw J Griffiths, Katrin Linse, Dorte Janussen   +3 more
doaj   +1 more source