DOI: 10.5194/tc-11-2883-2017
Scopus记录号: 2-s2.0-85038351977
论文题名: Glaciological settings and recent mass balance of blåskimen island in dronning maud land, antarctica
作者: Goel V ; , Brown J ; , Matsuoka K
刊名: Cryosphere
ISSN: 19940416
出版年: 2017
卷: 11, 期: 6 起始页码: 2883
结束页码: 2896
语种: 英语
英文关键词: glacier mass balance
; glaciology
; ice shelf
; ice thickness
; radar
; sea level
; stratigraphy
; Antarctica
; East Antarctica
; Fimbul Ice Shelf
; Queen Maud Land
英文摘要: The ice-shelf-fringed coast of Dronning Maud Land in East Antarctica contains numerous ice rises that influence the dynamics and mass balance of the region. However, only a few of these ice rises have been investigated in detail. Here, we present field measurements of Blåskimen Island, an isle-Type ice rise adjacent to Fimbul Ice Shelf. This ice rise is largely dome shaped, with a pronounced ridge extending to the south-west from its summit (410ma.s.l.). Its bed is mostly flat and about 100m below the current sea level. Shallow radar-detected isochrones dated with a firn core reveal that the surface mass balance is higher on the south-eastern (upwind) slope than on the north-western (downwind) slope by -37 %, and this pattern has persisted for at least the past decade. Moreover, arches in radar stratigraphy suggest that the summit of the ice rise has been stable for -600 years. Ensemble estimates of the mass balance using the input-output method show that this ice rise has thickened by 0.12-0.37m ice equivalent per year over the past decade. © Author(s) 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75460
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
There are no files associated with this item.
作者单位: Norwegian Polar Institute, Tromsø, Norway; Aesir Consulting LLC, Missoula, MT, United States
Recommended Citation:
Goel V,, Brown J,, Matsuoka K. Glaciological settings and recent mass balance of blåskimen island in dronning maud land, antarctica[J]. Cryosphere,2017-01-01,11(6)