The Recent Advance of the Ross Ice Shelf Antarctica

  title={The Recent Advance of the Ross Ice Shelf Antarctica},
  author={Stanley S. Jacobs and Douglas R. Macayeal and J. L. Ardai},
  journal={Journal of Glaciology},
  pages={464 - 474}
Abstract The seaward edge of the Ross Ice Shelf advanced northward at a minimum average velocity of 0.8 km a–1 between 1962 and 1985. That advance approximated velocities that have been obtained from glaciological data, indicating little recent wastage by iceberg calving. West of long. 178° E., the ice shelf has attained its most northerly position in the past 145 years, and has not experienced a major calving episode for at least 75 years. Since 1841 the ice-front position has advanced and… 

Figures from this paper

Continued northward expansion of the Ross Ice Shelf, Antarctica

The last major calving event along the Ross Ice Shelf (RIS, Antarctica) front occurred a decade ago, following a substantial increase in the rate of ice-front advance in the few years preceding the

The calving and drift of iceberg B-9 in the Ross Sea, Antarctica

Major rifts is the Ross Ice Shelf controlled the October 1987 calving of the 154 × 35 km “B-9” iceberg, one of the longest on record. The 2000 km, 22 month drift of this iceberg and the quite

Mega-Giant Iceberg Calved from the Ross Ice Shelf, Antarctica

  • H. Keys
  • Geology, Environmental Science
    Annals of Glaciology
  • 1989
Beneath the upper part of the ablation area of Storglaciaren, northern Sweden, the glacier bed is overdeepened. The overdeepening has a closure of -60 m. Electrical resistivity measurements in bore

Sea ice and oceanic process on the Ross Sea continental shelf

We have investigated the spatial and temporal variability of Antarctic sea ice concentrations on the Ross Sea continental shelf, in relation to oceanic and atmospheric forcing. Sea ice data were

Surface elevation changes at the front of the Ross Ice Shelf: Implications for basal melting

[1] Rapid melting beneath the Ross Ice Shelf (RIS) occurs near the ice front, likely in response to a secondary buoyant plume with tidal mixing, and is sensitive to seasonal water temperatures in

Reconstruction of late Wisconsinan Ice Sheet and sea-level implications

The Ross Sea exhibits north-south oriented troughs associated with modern ice streams and outlet glaciers. Seismic reflection profiles across the troughs show evidence that they were glacially

Ice front fluctuation, iceberg calving flux and mass balance of Victoria Land glaciers

The coast of Victoria Land extends from Williamson Head (69°11'S, 158°E) to McMurdo Sound (77°S, 163°E). A comparison of various documents and images spanning several decades has allowed the ice

Sea-level response to ice sheet evolution: An ocean perspective

The ocean's influence upon and response to Antarctic ice sheet changes is considered in relation to sea level rise over recent and future decades. Assuming present day ice fronts are in approximate

Ice-shelf dynamics near the front of the Filchner—Ronne Ice Shelf, Antarctica, revealed by SAR interferometry

Abstract Fifteen synthetic aperture radar (SAR) images of the Ronne Ice Shelf (also referred to as the Filchner-Ronne Ice Shelf), Antarctica, obtained by the European remote-sensing satellites ERS-1

Is the number of Antarctic icebergs really increasing

Icebergs released from the ice shelves and glaciers of Antarctica account for the majority of the continent's freshwater flux into the ocean. It is estimated that an average of nearly 2000 km3



Derived Characteristics of the Ross Ice Shelf, Antarctica (Abstract only)

Results of the Ross Ice Shelf Geophysical and Glaciologlcal Survey (RIGGS) provide the most complete data set available for any large portion of the polar ice sheets. In this paper, we use RIGGS data

Ice-thickness Patterns and the Dynamics of the Ross Ice Shelf, Antarctica

Abstract As part of the Ross Ice Shelf Geophysical and Glaciological Survey, a detailed map of ice thickness has been produced from airborne radar measurements closely tied to the network of survey

Mapping Ice-Sheet Margins from Radar Altimetry Data

The Seasat radar altimeter, which was designed to measure ranges to the sea surface, has also provided the most accurate available maps of ice-sheet elevation. Seasat operated for three months during

Geodetic Results of the Ross Ice Shelf Survey Expeditions, 1962–63 and 1965–66

By means of modern geodetic observation techniques the ice movement along an east-west and a north-south profile across the Ross Ice Shelf, Antarctica, was measured during the two Antarctic summers,

Heating and Melting of Floating Ice Shelves

  • H. Wexler
  • Environmental Science
    Journal of Glaciology
  • 1960
Abstract Based on an observed temperature profile through the Ross Ice Shelf at Little America and partial profiles in the Maudheim Is-shelf and the Filchner Ice Shelf near the Ellsworth I.G.Y.

Glaciological Investigations in the Frontal Zone of the Filchner and Ronne Ice Shelves

In the 1979-80 field season, a site survey was carried out in the southern Weddell Sea for the construction of a wintering station. The survey comprised glaciological investigations on the Filchner

Accelerating Flow of the Brunt Ice Shelf, Antarctica

Abstract Position fixes made at the British Antarctic Survey station, Halley, on the Brunt Ice Shelf are considered for the period 1968–82. These show an initial westward velocity of approximately

Ice Front Fluctuations in the Eastern and Southern Weddell Sea

We report new data on the position of ice edges in the eastern and southern Weddell Sea for the years 1983 and 1984. The data are derived from ship-borne radar measurements of individual points along

Ice pumps and their rates

An ice pump is a heat engine, driven by the change of freezing point with pressure, which will melt ice at depth in the ocean and deposit it at a shallower location: it is self-starting. Calculations

Tabular Icebergs: Implications from Geophysical Studies of Ice Shelves

Abstract Recent geophysical and glaciological investigations of the Ross Ice Shelf have revealed many complexities in the ice shelf that can be important factors in iceberg structure. The presence of