Results 91 to 100 of about 91,538 (269)

Enabling Under Ice Glider Operations: A Backseat Driver Approach

Journal of Field Robotics, EarlyView.
ABSTRACT Polar Oceans are key locations for forcing global ocean circulation, influencing both global climate and biogeochemical cycles. Due to restricted access to these seasonally and perennially ice‐covered regions, these areas are severely undersampled.
Yaomei Wang, Benjamin Allsup, Georgios Salavasidis, Stephen Woodward, Adeniyi Adenaya, Mike Smart, Alexis Johnson, Felipe Marques Dos Santos, Jake Ludgate, Daniel Matterson, Alvaro Lorenzo, J. Alexander Brearley, Alexander Brian Phillips   +12 more
wiley   +1 more source

The association of Antarctic krill Euphausia superba with the under-ice habitat.

PLoS ONE, 2012
The association of Antarctic krill Euphausia superba with the under-ice habitat was investigated in the Lazarev Sea (Southern Ocean) during austral summer, autumn and winter.
Hauke Flores, Jan Andries van Franeker, Volker Siegel, Matilda Haraldsson, Volker Strass, Erik Hubert Meesters, Ulrich Bathmann, Willem Jan Wolff   +7 more
doaj   +1 more source

Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO [PDF]

, 1976
The results of an updated satellite analysis of hemispheric and regional Antarctic sea-ice cover are presented based on October 1987-September I999 Special Sensor Microwave/Imager (SSM/I) data.
Edward Hanna, Bell, Bjørgo, Bromwich, Cavalieri, Comiso, De la Mare, Federov, Hanna, Hanna, Hanna, Johannessen, Parkinson, Simmons, Slingo, Smith, Stammerjohn, Timmermann, Urban, Van den Broeke, Vinnikov, Watkins, White, Wu, Yuan   +24 more
core   +2 more sources

Semi‐automated seal detection on the Western Antarctic Peninsula: an unsupervised machine learning approach for detecting ice seals in aerial survey data

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a semi‐automated, rule‐based image analysis pipeline to detect ice seals in aerial surveys of the Western Antarctic Peninsula during an unusually low sea ice year. By using simple hierarchical clustering instead of deep learning, the method substantially reduced human annotation effort while achieving 82% recall, identifying 758 ...
Claire McGinnity, Connor C.G. Bamford, Nathan Fenney, Andrew Fleming, Jaume Forcada, Michael S. Tift, Luis A. Hückstädt, Daniel P. Costa, Peter T. Fretwell   +8 more
wiley   +1 more source

The long-term sea-level commitment from Antarctica [PDF]

The Cryosphere
The evolution of the Antarctic Ice Sheet is of vital importance given the coastal and societal implications of ice loss, with a potential to raise sea level by up to 58 m if it melts entirely.
A. K. Klose, A. K. Klose, V. Coulon, F. Pattyn, R. Winkelmann, R. Winkelmann, R. Winkelmann   +6 more
doaj   +1 more source

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

Remote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis, Michelle LaRue, Benjamin M. Kraemer, Catalina Munteanu   +3 more
wiley   +1 more source

Change and Variability in East Antarctic Sea Ice, and Its Implications [PDF]

, 2016
Although Antarctic sea ice has undergone a small increase in overall extent over the past 30 years, major regional changes have occurred in sea ice coverage in response to changing patterns of large-scale atmospheric circulation.

core   +1 more source

Multianalytical provenance analysis of Eastern Ross Sea LGM till sediments (Antarctica): Petrography, geochronology, and thermochronology detrital data [PDF]

, 2017
In order to reveal provenance of detrital sediments supplied by West Antarctic Ice Sheet (WAIS), 19 glaciomarine cores of Last Glacial Maximum age were analyzed from Eastern Ross Sea and Sulzberger Bay.
Andreucci, Benedetta, Langone, Antonio, Perotti, Matteo, Talarico, Franco, Zattin, Massimiliano   +4 more
core   +2 more sources

Rhyming in the cold: first evidence of soniferous fishes in the Southern Ocean

Remote Sensing in Ecology and Conservation, EarlyView.
The acoustic ecology of Southern Ocean fishes remains unknown due to a lack of dedicated acoustic research on the fishes of this ocean. Passive acoustic monitoring data were collected at the South African sub‐Antarctic Prince Edward Islands using an underwater acoustic recorder, and towed underwater Ski‐Monkey cameras were deployed to identify fish ...
Fannie W. Shabangu, Grant van der Heever, Charles von der Meden, Hannah Truter, Stephen J. Lamberth, Ofer Gon   +5 more
wiley   +1 more source

The impacts of past climate change on sub-Antarctic nearshore ecosystems [PDF]

, 2012
Pleistocene glacial–interglacial cycles would have resulted in drastic changes in the structure of sub-Antarctic littoral ecosystems. Genetic data indicate that the large kelps that dominate intertidal and shallow subtidal sub-Antarctic shores today ...
Fraser, C
core   +1 more source