DOI: 10.1002/2016GL070589
论文题名: A 15 year record of frontal glacier ablation rates estimated from seismic data
作者: Köhler A. ; Nuth C. ; Kohler J. ; Berthier E. ; Weidle C. ; Schweitzer J.
刊名: Geophysical Research Letters
ISSN: 0094-8341
EISSN: 1944-8072
出版年: 2016
卷: 43, 期: 23 起始页码: 12155
结束页码: 12164
语种: 英语
英文关键词: calving
; frontal ablation
; seismic monitoring
; Svalbard
; tidewater glacier
Scopus关键词: Ablation
; Calving
; Input parameter
; Potential methods
; Seismic background noise
; Seismic instrumentation
; Seismic monitoring
; Svalbard
; Tidewater glaciers
; Seismology
英文摘要: We present a unique time series of continuous glacier frontal ablation rates with weekly resolution over 15 years estimated from seismic calving observations at Kronebreen, Svalbard. Using linear statistical models, we calibrate the seismic record with 7 years of satellite-derived frontal ablation measurements. The two basic input parameters required for our models are the cumulative duration of individual seismic calving events and the incompleteness of the seismic record to correct for the effect of seismic background noise. Frontal ablation follows the seasonal glacier speedup, peaking 1–2 months after the melt season maximum. Short-lived peaks are associated with melt and rain events. Cumulative frontal ablation of Kronebreen between 2001 and 2015 is about 4.0 km3 (3.7 Gt), with the greatest annual loss (0.45 km3) between 2013 and 2014 at the onset of the recent accelerated retreat of the glacier. Our approach provides a potential method for monitoring tidewater glaciers worldwide that have sufficiently close seismic instrumentation. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006918763&doi=10.1002%2f2016GL070589&partnerID=40&md5=c5ea4fde74f0004660224c56ce203ba9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9304
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geosciences, University of Oslo, Oslo, Norway
Recommended Citation:
Köhler A.,Nuth C.,Kohler J.,et al. A 15 year record of frontal glacier ablation rates estimated from seismic data[J]. Geophysical Research Letters,2016-01-01,43(23).