-
541
Alpine topography of the Gamburtsev Subglacial Mountains, Antarctica, mapped from ice sheet surface morphology
Published 2024-04-01“…The Gamburtsev Subglacial Mountains in central East Antarctica are one such landscape, maintaining evidence of tectonic, fluvial and glacial controls on their distinctly alpine morphology. …”
Get full text
Article -
542
Brief communication: Two well-marked cases of aerodynamic adjustment of sastrugi
Published 2016-04-01“…This paper aims at quantifying the potential influence of sastrugi on the local wind field and on snow erosion over a sastrugi-covered snowfield in coastal Adélie Land, East Antarctica. We focus on two erosion events during which sastrugi responses to shifts in wind direction have been interpreted from temporal variations in drag and aeolian snow mass flux measurements during austral winter 2013. …”
Get full text
Article -
543
Decades of dietary data demonstrate regional food web structures in the Southern Ocean
Published 2021-01-01“…We used network analyses and generalizations of taxonomic food web structure to confirm that while Antarctic krill are dominant as the mid‐trophic level for the Atlantic and East Pacific food webs (including the Scotia Arc and Western Antarctic Peninsula), mesopelagic fish and other krill species are dominant contributors to predator diets in the Indian and West Pacific regions (East Antarctica and the Ross Sea). We also highlight how tracking data and habitat modeling for mobile top predators in the Southern Ocean show that these species integrate food webs over large regional scales. …”
Get full text
Article -
544
Biogeochemical processes accounting for the natural mercury variations in the Southern Ocean diatom ooze sediments
Published 2020-06-01“…To understand the influence of different sea surface conditions (climate-induced changes in ice coverage and biological production) on natural mercury accumulation, we used a continuous <span class="inline-formula">∼170</span> m Holocene biogenic sedimentary record from Adélie Basin, East Antarctica, which mainly consists of silica-based skeletons of diatoms. …”
Get full text
Article -
545
Per-length biomass estimates of Antarctic krill (Euphausia superba)
Published 2023-05-01Get full text
Article -
546
Basal conditions of Denman Glacier from glacier hydrology and ice dynamics modeling
Published 2023-11-01“…We investigate the impact of using effective pressures calculated from the Glacier Drainage System (GlaDS) model on basal friction coefficients calculated using inverse methods in the Ice-sheet and Sea-level System Model (ISSM) at Denman Glacier, East Antarctica, for the Schoof and Budd friction laws. …”
Get full text
Article -
547
Evolving provenance in the Proterozoic Pranhita-Godavari Basin, India
Published 2015-05-01“…These ages are consistent with palaeocurrent data suggesting a southerly source from the Krishna Province and Enderby Land in East Antarctica. The similarity in the maximum depositional age with previously published authigenic glauconite ages suggest that the origin of the Pranhita-Godvari Graben originated as a rift that formed at a high angle to the coeval evolving late Meosproterozoic Krishna Province as Enderby Land collided with the Dharwar craton of India. …”
Get full text
Article -
548
Cascading water underneath Wilkes Land, East Antarctic ice sheet, observed using altimetry and digital elevation models
Published 2014-04-01“…We describe a major subglacial lake drainage close to the ice divide in Wilkes Land, East Antarctica, and the subsequent cascading of water underneath the ice sheet toward the coast. …”
Get full text
Article -
549
Antarctic subglacial drilling rig: Part IV. Electrical and electronic control system
Published 2021-04-01“…The control system of Antarctic subglacial drilling rig was tested during the 2018–2019 summer season near Zhongshan Station, East Antarctica, in the course of drilling to the bedrock at a depth of 198 m. …”
Get full text
Article -
550
REPORT OF UPPER AIR OBSERVATIONS OF THE 7TH JAPANESE ANTARCTIC RESEARCH EXPEDITION, 1966-1967
Published 1967-12-01“…Stratospheric warming started on October 20th from the coast of east Antarctica. Accompanying the movement of the warming centre to the east, the warmed area expanded all over the continent. …”
Get full text
Article -
551
Mass and Number Size Distributions of rBC in Snow and Firn Samples From Pine Island Glacier, West Antarctica
Published 2020-11-01“…We observed a primary mass median diameter of 162 ± 40 nm, smaller than reported for snow in other regions of the globe but similar to East Antarctica rBC size distributions. In addition, we observed other modes at 673, 1,040, and >1,810 nm (uncontained mode). …”
Get full text
Article -
552
Measurements of atmospheric Δ14CO2 along the R/V Xuelong cruise track from Zhongshan Station (Antarctica) to Shanghai
Published 2020-01-01“…In comparison with the atmospheric Δ14CO2 level (45.7 ± 3.5‰ (1σ)) measured in the coastal region of East Antarctica, CDW upwelling caused reduction of ∼10‰ in Δ14CO2 in two cross sections: 62.0°–64.0°S along 74.0°E and 51.7°–54.0°S along 80.5°–84.0°E. …”
Get full text
Article -
553
Timescales of outlet-glacier flow with negligible basal friction: theory, observations and modeling
Published 2023-01-01“…Under these assumptions, the timescales in response to a potential destabilization are fastest for Thwaites Glacier in West Antarctica and Mellor, Ninnis and Cook Glaciers in East Antarctica; between 16 and 67 times faster than for Pine Island Glacier. …”
Get full text
Article -
554
Modeling the Dynamics of the Atmospheric Boundary Layer Over the Antarctic Plateau With a General Circulation Model
Published 2018-01-01“…However, the near‐surface wind remains underestimated over the slopes of East‐Antarctica.…”
Get full text
Article -
555
PetroChron Antarctica: A Geological Database for Interdisciplinary Use
Published 2021-12-01“…Maps of age distribution and isotopic composition highlight major episodes of tectonic and thermal activity that define well known crustal heterogeneities across the continent, with the oldest rocks preserved in East Antarctica and more juvenile lithosphere characterizing West Antarctica. …”
Get full text
Article -
556
The hydrostatic control of load-induced height changes above subglacial Lake Vostok
Published 2022-10-01“…Lake Vostok, East Antarctica, represents an extensive water surface at the base of the ice sheet. …”
Get full text
Article -
557
A benchmark dataset of in situ Antarctic surface melt rates and energy balance
Published 2020-04-01“…Here we present a benchmark dataset of in situ surface melt rates and energy balance from nine sites in the eastern Antarctic Peninsula (AP) and coastal Dronning Maud Land (DML), East Antarctica, seven of which are located on AIS ice shelves. …”
Get full text
Article -
558
Basidiomycetous Yeast, <i>Glaciozyma antarctica,</i> Forming Frost-Columnar Colonies on Frozen Medium
Published 2021-08-01“…The basidiomycetous yeast, <i>Glaciozyma antarctica</i>, was isolated from various terrestrial materials collected from the Sôya coast, East Antarctica, and formed frost-columnar colonies on agar plates frozen at −1 °C. …”
Get full text
Article -
559
Photoprotection enhanced by red cell wall pigments in three East Antarctic mosses
Published 2018-11-01“…This study compares the concentrations and localisation of intracellular and cell wall UVAC in Antarctic Ceratodon purpureus, Bryum pseudotriquetrum and Schistidium antarctici from the Windmill Islands, East Antarctica. Results Multiple stresses, including desiccation and naturally high UV and visible light, seemed to enhance the incorporation of total UVAC including red pigments in the cell walls of all three Antarctic species analysed. …”
Get full text
Article -
560
The Antarctic Crust and Upper Mantle: A Flexible 3D Model and Software Framework for Interdisciplinary Research
Published 2020-11-01“…We demonstrate the usage of the framework by computing new estimates of subglacial steady-state heat flow in a continental scale model for east Antarctica and a regional scale model for the Wilkes Basin in Victoria Land. …”
Get full text
Article