Spatiotemporal mapping of a large mountain glacier from CryoSat-2 altimeter data: surface elevation and elevation change of Bering Glacier during surge (2011–2014)
Spatiotemporal mapping of a large mountain glacier from CryoSat-2 altimeter data: surface elevation and elevation change of Bering Glacier during surge (2011–2014)
复制标题
根据 CryoSat-2 高度计数据绘制大型山地冰川时空图:白令冰川涌动期间的表面高程和高程变化(2011 年至 2014 年)
DOI:
10.1080/01431161.2016.1187318
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发表时间:
2016
影响因子:
3.4
通讯作者:
Herzfeld, U. C.
中科院分区:
文献类型:
--
作者:
Trantow, T.;Herzfeld, U. C.
CryoSat-2 radar altimeter data have been applied to map surface elevations of the Greenland and Antarctic ice sheets, and of Arctic icecaps. In this article we investigate the feasibility of using CryoSat-2 data for spatiotemporal analysis of surface elevation of a large mountain glacier. Bering Glacier, Alaska (which is 8–20 km wide and approximately 80 km long) is selected as a study area because it surges and hence shows short-term elevation changes. The approach includes a correction method, geostatistical analysis, and several methods for error assessment. A time series of digital elevation models (DEMs) is derived for six-month increments from Summer 2011 to Winter 2013/2014. DEMs have, on average, numerical Kriging errors of 1.65 + 3.19 m and Kriging estimation standard deviations of 11.32 + 1.01 m. A crossover analysis with airborne laser altimeter data from the fall months of 2011, 2012, and 2013 produced differences of 5.03 + 13.67 m compared to respective CryoSat-2 data sets. Difference maps are derived from the DEMs and are used to infer dynamical changes associated with the recent surge. In conclusion, CryoSat-2 data can be employed for spatiotemporal mapping of the evolution of surface elevation in Bering Glacier and other mountain glaciers of similar width, while providing key insight into large-scale elevation change over relatively short time periods.
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影响因子:
8.2
作者:
N. Galin;D. Wingham;R. Cullen;M. Fornari;Walter H. F. Smith;S. Abdalla
通讯作者:
N. Galin;D. Wingham;R. Cullen;M. Fornari;Walter H. F. Smith;S. Abdalla
影响因子:
2.9
作者:
M. Truffer;K. Echelmeyer
通讯作者:
K. Echelmeyer
影响因子:
8.2
作者:
D. Wingham;L. Phalippou;C. Mavrocordatos;D. Wallis
通讯作者:
D. Wallis
影响因子:
2.9
作者:
R. Stosius;U. Herzfeld
通讯作者:
U. Herzfeld
DOI:
--
发表时间:
1989
期刊:
影响因子:
--
作者:
U. Herzfeld
通讯作者:
U. Herzfeld