Results 11 to 20 of about 2,868,735 (385)

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

open access: yesArctic, 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   +3 more
doaj   +1 more source

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

open access: yesEcological 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   +1 more source

Molecular Detection of Histoplasma capsulatum in Antarctica

open access: yesEmerging 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   +7 more
doaj   +1 more source

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

open access: yesPolar 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   +6 more
doaj   +1 more source

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

open access: yesClimate 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   +25 more
doaj   +1 more source

Antarctic Basal Water Storage Variation Inferred from Multi-Source Satellite Observation and Relevant Models

open access: yesRemote Sensing, 2022
Antarctic basal water storage variation (BWSV) refers to mass changes of basal water beneath the Antarctic ice sheet (AIS). Identifying these variations is critical for understanding Antarctic basal hydrology variations and basal heat conduction, yet ...
Jingyu Kang   +4 more
doaj   +1 more source

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

open access: yesPLoS 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   +3 more
doaj   +1 more source

Gene Transfer Agent g5 Gene Reveals Bipolar and Endemic Distribution of Roseobacter Clade Members in Polar Coastal Seawater

open access: yesDiversity, 2022
The Roseobacter clade represents one of the most abundant groups of marine bacteria and plays important biogeochemical roles in marine environments. Roseobacter genomes commonly contain a conserved gene transfer agent (GTA) gene cluster.
Yin-Xin Zeng, Hui-Rong Li, Wei Luo
doaj   +1 more source

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

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