Characteristics of ice rises and ice rumples in Dronning Maud Land and Enderby Land, Antarctica
| Autor: | Ian Lee, Kenichi Matsuoka, Jørgen Dall, René Forsberg, Vikram Goel, Cesar Deschamps Berger |
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| Přispěvatelé: | Norwegian Polar Institute, Department of Geosciences [Oslo], Faculty of Mathematics and Natural Sciences [Oslo], University of Oslo (UiO)-University of Oslo (UiO), National Centre for Polar and Ocean Research, Ministry of Earth Sciences [India], Department of Earth Sciences, University of Washington [Seattle], Technical University of Denmark [Lyngby] (DTU), National Centre for Polar and Ocean Research (NCPOR) from the Ministry of Earth Sciences (MoES), Government of India MoES/16/22/12-RDEASUS National Geospatial-Intelligence Agency European Space Agency DTU Research Council of Norway230945Research Council of Norway24780Norwegian Antarctic Research Expeditions Center for Ice, Climate and Ecosystems (ICE) of the Norwegian Polar Institute India's Ministry of Earth Sciences Research Council of Norway |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010504 meteorology & atmospheric sciences
010502 geochemistry & geophysics 01 natural sciences Ice shelf Antarctic glaciology Ice dynamics Glacier mass balance Ice core Paleoclimatology Satellite imagery 14. Life underwater ice shelves [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology 0105 earth and related environmental sciences Earth-Surface Processes ice rise geography geography.geographical_feature_category Ice rise Drilling Ice shelves 15. Life on land Coring 13. Climate action Physical geography Geology |
| Zdroj: | Journal of Glaciology Journal of Glaciology, International Glaciological Society, 2020, 66 (260), pp.1064-1078. ⟨10.1017/jog.2020.77⟩ Goel, V, Matsuoka, K, Berger, C D, Lee, I, Dall, J & Forsberg, R 2020, ' Characteristics of ice rises and ice rumples in Dronning Maud Land and Enderby Land, Antarctica ', Journal of Glaciology, vol. 66, no. 260, pp. 1064–1078 . https://doi.org/10.1017/jog.2020.77 |
| ISSN: | 0022-1430 |
| Popis: | Ice rises and rumples, locally grounded features adjacent to ice shelves, are relatively small yet play significant roles in Antarctic ice dynamics. Their roles generally depend upon their location within the ice shelf and the stage of the ice-sheet retreat or advance. Large, long-stable ice rises can be excellent sites for deep ice coring and paleoclimate study of the Antarctic coast and the Southern Ocean, while small ice rises tend to respond more promptly and can be used to reveal recent changes in regional mass balance. The coasts of Dronning Maud Land (DML) and Enderby Land in East Antarctica are abundant with these features. Here we review existing knowledge, presenting an up-to-date status of research in these regions with focus on ice rises and rumples. We use regional datasets (satellite imagery, surface mass balance and ice thickness) to analyze the extent and surface morphology of ice shelves and characteristic timescales of ice rises. We find that large parts of DML have been changing over the past several millennia. Based on our findings, we highlight ice rises suitable for drilling ice cores for paleoclimate studies as well as ice rises suitable for deciphering ice dynamics and evolution in the region. |
| Databáze: | OpenAIRE |
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