The Maximum Ice Extent on Island Groups in the Scotia Sea, Antarctica

1977 ◽  
Vol 7 (2) ◽  
pp. 268-282 ◽  
Author(s):  
D.E. Sugden ◽  
C.M. Clapperton
Keyword(s):  
Ice Cover ◽  
South Shetland Islands ◽  
Falkland Islands ◽  
The South ◽  
Scotia Sea ◽  
Shetland Islands ◽  
South Georgia ◽  
Orkney Islands ◽  
Ice Caps ◽  
The Antarctic

Evidence is presented for a more extensive ice cover over South Georgia, the South Orkney Islands, the South Shetland Islands, and the tip of the Antarctic Peninsula. Ice extended across the adjacent submarine shelves to a depth of 200 m below present sea level. Troughs cut into the submarine shelves by ice streams or outlet glaciers and ice-scoured features on the shelf areas suggest that the ice caps were warm-based. The South Shetland Islands appear not to have been overrun by continental ice. Geomorphological evidence in two island groups suggests that the maximum ice cover, which was responsible for the bulk of glacial erosion, predates at least one full glaciation. Subsequently there was a marine interval and then a glaciation which overran all of the lowlying peninsulas. The Falkland Islands, only 2° of latitude north of South Georgia, were never covered by an ice cap and supported only a few slightly enlarged cirque glaciers. This suggests that the major oceanographic and atmospheric boundary represented by the Antarctic Convergence, which is presently situated between the Falkland Islands and South Georgia, has remained in a similar position throughout the glacial age. Its position is probably bathymetrically controlled.

scholarly journals Geodetic Mass Balance of the South Shetland Islands Ice Caps, Antarctica, from Differencing TanDEM-X DEMs

2021 ◽  
Vol 13 (17) ◽  
pp. 3408
Author(s):  
Kaian Shahateet ◽  
Thorsten Seehaus ◽  
Francisco Navarro ◽  
Christian Sommer ◽  
Matthias Braun
Keyword(s):  
Mass Balance ◽  
South Shetland Islands ◽  
The South ◽  
Mass Balance Calculation ◽  
Shetland Islands ◽  
Ice Caps ◽  
The North ◽  
Data Limitations ◽  
Geodetic Mass Balance ◽  
The Antarctic

Although the glaciers in the Antarctic periphery currently modestly contribute to sea level rise, their contribution is projected to increase substantially until the end of the 21st century. The South Shetland Islands (SSI), located to the north of the Antarctic Peninsula, are lacking a geodetic mass balance calculation for the entire archipelago. We estimated its geodetic mass balance over a 3–4-year period within 2013–2017. Our estimation is based on remotely sensed multispectral and interferometric SAR data covering 96% of the glacierized areas of the islands considered in our study and 73% of the total glacierized area of the SSI archipelago (Elephant, Clarence, and Smith Islands were excluded due to data limitations). Our results show a close to balance, slightly negative average specific mass balance for the whole area of −0.106 ± 0.007 m w.e. a−1, representing a mass change of −238 ± 12 Mt a−1. These results are consistent with a wider scale geodetic mass balance estimation and with glaciological mass balance measurements at SSI locations for the same study period. They are also consistent with the cooling trend observed in the region between 1998 and the mid-2010s.

The cryptostigmatid mite Halozetes belgicae (Michael) in the maritime Antarctic

1991 ◽  
Vol 3 (1) ◽  
pp. 53-59 ◽  
Author(s):  
L.B. Minto ◽  
G.J. Shepherd ◽  
M.B. Usher
Keyword(s):  
South Shetland Islands ◽  
Maritime Antarctic ◽  
The South ◽  
Macquarie Island ◽  
Shetland Islands ◽  
Orkney Islands ◽  
South Orkney Islands ◽  
South Sandwich Islands ◽  
The Antarctic ◽  
Morphometrical Study

Halozetes belgicae is distributed widely in the Subantarctic and maritime Antarctic, with subspecies described from Macquarie Island and the South Sandwich Islands. A morphometrical study, based largely on the development of the setae, indicates that the nominate subspecies is confined to the Antarctic Peninsula and its offshore islands (including the South Shetland Islands), whilst specimens from the South Orkney Islands are probably consubspecific with individuals on the South Sandwich Islands. In comparison with other studies of the Acari, the results strengthen the case for the recognition of a South Orkadian biogeographical zone.

Postal History of the Falkland Islands Dependencies

Polar Record ◽  
1947 ◽  
Vol 5 (33-34) ◽  
pp. 45-59 ◽  
Author(s):  
Richard W. Bagshawe
Keyword(s):  
Great Britain ◽  
South Shetland Islands ◽  
Falkland Islands ◽  
The South ◽  
Shetland Islands ◽  
Orkney Islands ◽  
History Of ◽  
Whaling Industry ◽  
South Sandwich Islands ◽  
Set Up

The Antartic continent has been in the limelight during the past year, and it is well known that several countries are claiming parts of the area, which unfortunately overlap. Possessions belonging to Great Britain, but at present disputed, are all islands and territories lying between longitudes 20°and 50° W., south of latitudes 58° S. The islands enclosed by these boundaries are Dependencies of the Falkland Islands consisting of many islands and part the Antartic Continent. South Georgia, the South Orkney Islands, Graham Land, the South Shetland Islands, the South Sandwich Islands, Alexander I Land and part of Coats Land lie within this area, which amounts in all to about three million square miles, and the territories, portions of which are as yet unexplored, extend down to the South Pole. Great Britain permanently occupies the Dependencies, carrying on a whaling industry and scientific research. In addition the Argentine Government has a meteorological station on Laurie Island in the South Orkneys. This was established in 1904 at the request of Dr W. S. Bruce, leader of the Scottish National Antarctic Expedition, who had built the station two years earlier. Since 1904 it has been continually manned by meteorologists sent out each year from Argentina. The original party had a post office, the first to appear in Antarctica. This and the more recent ones set up under British administration are marked on the accompanying map. Owing to the impermanence of the population of this part of the world they are naturally not all open continuously.

scholarly journals Contribution to the knowledge of the infection with Acanthocephala of a predatory Antarctic ice-fish Chaenocephalus aceratus

2010 ◽  
Vol 31 (4) ◽  
pp. 303-308 ◽  
Author(s):  
Zdzisław Laskowski ◽  
Krzysztof Zdzitowiecki
Keyword(s):  
Mature Female ◽  
South Shetland Islands ◽  
The South ◽  
Admiralty Bay ◽  
Shetland Islands ◽  
South Georgia ◽  
Orkney Islands ◽  
Open Sea ◽  
South Orkney Islands ◽  
Chaenocephalus Aceratus

Contribution to the knowledge of the infection with Acanthocephala of a predatory Antarctic ice-fish Chaenocephalus aceratus Adult females of a predatory fish, the blackfin icefish, Chaenocephalus aceratus examined at the South Shetland Islands and South Orkney Islands were by several orders of magnitude more infected with Acanthocephala than the males and immature females. Such phenomenon has not been observed in the neritic zone at South Georgia. Cystacanths of Corynosoma hamanni and Corynosoma pseudohamanni were the dominant parasites in Admiralty Bay, whereas Corynosoma bullosum was the dominant in the open sea off the South Shetland Islands and South Georgia, and in the sub-coastal waters off the South Orkney Islands. However, the dominance of C. bullosum was observed in several hosts in Admiralty Bay and the co-dominance of C. bullosum, C. hamanni, and C. pseudohamanni in one mature female in the neritic zone at the South Shetland Islands. Probably, these fish previously lived in the open sea. Cystacanths of Corynosoma arctocephali and Corynosoma shackletoni occurred in the fish in Admiralty Bay and off South Georgia. The former parasite was present also off the South Orkney Islands. One cystacanth of Andracantha baylisi was found off South Georgia. Two echinorhynchids, Aspersentis megarhynchus and Metacanthocephalus dalmori, occurred in the alimentary tracts of the fish caught in Admiralty Bay and one specimen of Echinorhynchus petrotschenkoi off the South Shetland Islands. The highest infection, amounting to 816 acanthocephalans, was found in a mature female in Admiralty Bay. One cystacanth of C. hamanni occurred in a single immature fish caught in the sub-coastal area off Deception Island.

scholarly journals Relationship between Recruitment of the Antarctic Krill and the Degree of Ice Cover near the South Shetland Islands

1994 ◽  
Vol 60 (1) ◽  
pp. 123-124 ◽  
Author(s):  
So Kawaguchi ◽  
Mikio Satake
Keyword(s):  
Antarctic Krill ◽  
Ice Cover ◽  
South Shetland Islands ◽  
The South ◽  
Shetland Islands ◽  
The Antarctic

Phenotypic plasticity in the Antarctic fish Trematomus newnesi (Nototheniidae) from the South Shetland Islands

Polar Biology ◽  
2009 ◽  
Vol 32 (10) ◽  
pp. 1407-1413 ◽  
Author(s):  
Gabriela L. M. Piacentino ◽  
Esteban Barrera-Oro
Keyword(s):  
Phenotypic Plasticity ◽  
Antarctic Fish ◽  
South Shetland Islands ◽  
The South ◽  
Shetland Islands ◽  
The Antarctic

scholarly journals Identification of marine Important Bird and Biodiversity Areas for penguins around the South Shetland Islands and South Orkney Islands

2018 ◽  
Vol 8 (21) ◽  
pp. 10520-10529 ◽  
Author(s):  
Maria P. Dias ◽  
Ana Paula Bertoldi Carneiro ◽  
Victoria Warwick-Evans ◽  
Colin Harris ◽  
Katharina Lorenz ◽  
...  
Keyword(s):  
South Shetland Islands ◽  
The South ◽  
Shetland Islands ◽  
Orkney Islands ◽  
South Orkney Islands

Fire Precautions at Antarctic Stations

Polar Record ◽  
1953 ◽  
Vol 6 (46) ◽  
pp. 743-745
Author(s):  
Bernard Stonehouse
Keyword(s):  
South Shetland Islands ◽  
Falkland Islands ◽  
Deception Island ◽  
The South ◽  
Shetland Islands ◽  
Antarctic Expedition ◽  
Terre Adélie ◽  
Hope Bay

In 1946 the Falkland Islands Dependencies Survey station on Deception Island in the South Shetland Islands was completely destroyed by fire. Stores, valuable equipment and the records of many months' work were lost. In 1948 the station at Hope Bay in Trinity Peninsula was burnt down, with the loss of two lives. In January 1952 the hut of the French Antarctic Expedition at Port-Martin in Terre Adélie was destroyed in the same way. Smaller outbreaks of fire, fortunately detected early and dealt with promptly, have been reported from other stations. Of all the difficulties which can overtake a polar expedition, the loss of its base is perhaps the most disastrous. Nevertheless, the frequency with which such losses seem to occur suggests that there are fundamental errors in the design of the huts, as well as a tendency to underestimate the danger of fire.

Buoyancy studies of three morphs of the Antarctic fish Trematomus newnesi (Nototheniidae) from the South Shetland Islands

Polar Biology ◽  
2010 ◽  
Vol 33 (6) ◽  
pp. 823-831 ◽  
Author(s):  
Joseph T. Eastman ◽  
Esteban Barrera-Oro
Keyword(s):  
Antarctic Fish ◽  
South Shetland Islands ◽  
The South ◽  
Shetland Islands ◽  
The Antarctic
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