TITLE

Modelled glacier response to centennial temperature and precipitation trends on the Antarctic Peninsula

AUTHOR(S)
Davies, Bethan J.; Golledge, Nicholas R.; Glasser, Neil F.; Carrivick, Jonathan L.; Ligtenberg, Stefan R. M.; Barrand, Nicholas E.; van den Broeke, Michiel R.; Hambrey, Michael J.; Smellie, John L.
PUB. DATE
November 2014
SOURCE
Nature Climate Change;Nov2014, Vol. 4 Issue 11, p993
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The northern Antarctic Peninsula is currently undergoing rapid atmospheric warming. Increased glacier-surface melt during the twentieth century has contributed to ice-shelf collapse and the widespread acceleration, thinning and recession of glaciers. Therefore, glaciers peripheral to the Antarctic Ice Sheet currently make a large contribution to eustatic sea-level rise, but future melting may be offset by increased precipitation. Here we assess glacier-climate relationships both during the past and into the future, using ice-core and geological data and glacier and climate numerical model simulations. Focusing on Glacier IJR45 on James Ross Island, northeast Antarctic Peninsula, our modelling experiments show that this representative glacier is most sensitive to temperature change, not precipitation change. We determine that its most recent expansion occurred during the late Holocene 'Little Ice Age' and not during the warmer mid-Holocene, as previously proposed. Simulations using a range of future Intergovernmental Panel on Climate Change climate scenarios indicate that future increases in precipitation are unlikely to offset atmospheric-warming-induced melt of peripheral Antarctic Peninsula glaciers.
ACCESSION #
100251301

 

Related Articles

  • Observational Evidence of Increases in Freshwater Inflow to the Arctic Ocean. Dyurgerov, Mark B.; Carter, Carissa L. // Arctic, Antarctic & Alpine Research;Feb2004, Vol. 36 Issue 1, p117 

    Analysis of mass balance data from arctic mountain and subpolar glaciers with an aggregate area of more than 300* 10³ km² reveals that these glaciers were the main source of increased freshwater inflow to the Arctic Ocean over the 1961-1998 period. The sum of net water inflow from glaciers...

  • Impact of inter- and intra-annual variation in weather parameters on mass balance and equilibrium line altitude of Naradu Glacier (Himachal Pradesh), NW Himalaya, India. Koul, M. N.; Ganjoo, R. K. // Climatic Change;Mar2010, Vol. 99 Issue 1/2, p119 

    Glaciers in Himalaya have been studied with respect to their mass balance to assess their response, if any, to global warming. Naradu glacier in the Baspa Valley of Himachal Pradesh is one such glacier that has been studied in the backdrop of the impact of inter- and intra-annual variation in...

  • Interhemispheric coupling and warm Antarctic interglacials. Holden, P. B.; Edwards, N. R.; Wolff, E. W.; Lang, N. J.; Singarayer, J. S.; Valdes, P. J.; Stocker, T. F. // Climate of the Past Discussions;2009, Vol. 5 Issue 6, p2555 

    Ice core evidence indicates that even though atmospheric CO2 concentrations did not exceed ∼300 ppm at any point during the last 800 000 years, East Antarctica was at least ∼3-4 °C warmer than pre-industrial (CO2 ∼280 ppm) in each of the last four interglacials. During the...

  • THE LONG GOODBYE. Monastersky, Richard // New Scientist;04/14/2001, Vol. 170 Issue 2286, p30 

    Reports on the work of glaciologist Keith Echelmeyer to determine whether glaciers are shrinking as a result of global warming. Suggestion that environmentalists have been too quick to assume the glaciers are shrinking; Details of Echelmeyer's work flying over glaciers in Alaska using the...

  • Half a Century of Measurements of Glaciers on Axel Heiberg Island, Nunavut, Canada. COGLEY, J. G.; ADAMS, W. P.; ECCLESTONE, M. A. // Arctic;Sep2011, Vol. 64 Issue 3, p371 

    We illustrate the value of longevity in high-latitude glaciological measurement series with results from a programme of research in the Expedition Fiord area of western Axel Heiberg Island that began in 1959. Diverse investigations in the decades that followed have focused on subjects such as...

  • Glacier changes in the Garhwal Himalaya, India, from 1968 to 2006 based on remote sensing. BHAMBRI, Rakesh; BOLCH, Tobias; CHAUJAR, Ravinder Kumar; KULSHRESHTHA, Subhash Chandra // Journal of Glaciology;2011, Vol. 57 Issue 203, p543 

    The article presents the study which determined the glacier changes at the Garhwal Himalaya in India during 1968-2006, as well as the influencing variables like debris cover, topography and climate parameters. In the study, the Advanced Spaceborne Thermal Emission and Reflection Radiometer...

  • Rapid response of Helheim Glacier, southeast Greenland, to early Holocene climate warming. Hughes, Anna L. C.; Rainsley, Eleanor; Murray, Tavi; Fogwill, Christopher J.; Schnabel, Christoph; Sheng Xu // Geology;May2012, Vol. 40 Issue 5, p427 

    Recent changes in speed, thinning, and retreat rates of marine-terminating outlet glaciers have raised concerns about the future stability of the Greenland Ice Sheet. Establishing a longer term record of outlet glacier retreat rates is essential to provide a context for present-day observations...

  • Potential feedback mediated by soil microbiome response to warming in a glacier forefield. Wang, Yuwan; Ma, Anzhou; Liu, Guohua; Ma, Jianpeng; Wei, Jing; Zhou, Hanchang; Brandt, Kristian Koefoed; Zhuang, Guoqiang // Global Change Biology;Feb2020, Vol. 26 Issue 2, p697 

    Mountain glaciers are retreating at an unprecedented rate due to global warming. Glacier retreat is widely believed to be driven by the physiochemical characteristics of glacier surfaces; however, the current knowledge of such biological drivers remains limited. An estimated 130 Tg of organic...

  • Abstractions.  // Nature;1/19/2006, Vol. 439 Issue 7074, pxiii 

    The article focuses on the sophisticated model built by scientist Sarah Raper in assessing the effects of global warming on glaciers and ice caps. This model suggests that the global rise in sea levels caused by global warming might not be as great as some estimates have found. But it also shows...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics