Elevation changes and dynamic provinces of Jakobshavn Isbræ, Greenland, derived using generalized spatial surface roughness from ICESat GLAS and ATM data
نویسندگان
چکیده
منابع مشابه
ESA’s Ice Sheets CCI: validation and inter-comparison of surface elevation changes derived from laser and radar altimetry over Jakobshavn Isbræ, Greenland – Round Robin results
Introduction Conclusions References
متن کاملBed topography of Jakobshavn Isbræ, Greenland, and Byrd Glacier, Antarctica
This paper presents the bed topography of Jakobshavn Isbræ, Greenland, and Byrd Glacier, Antarctica, derived from sounding these glaciers with high-sensitivity radars. To understand the processes causing the speed-up and retreat of outlet glaciers, and to enable the development of nextgeneration ice-sheet models, we need information on bed topography and basal conditions. To this end, we perfor...
متن کاملICESat measurement of Greenland ice sheet surface slope and roughness
The Ice, Cloud and land Elevation Satellite (ICESat) in its 8 day repeat orbit mode provided data not only on the along-track surface slope, but also on the cross-track surface slope from adjacent repeat ground tracks. During the first 36 days of operation, four to five such repeat orbits occurred within 1 km in the cross-track direction. This provided an opportunity to use ICESat data to measu...
متن کاملSpatiotemporal interpolation of elevation changes derived from satellite altimetry for Jakobshavn Isbr, Greenland
[1] Estimation of ice sheet mass balance from satellite altimetry requires interpolation of point-scale elevation change (dH/dt) data over the area of interest. The largest dH/dt values occur over narrow, fast-flowing outlet glaciers, where data coverage of current satellite altimetry is poorest. In those areas, straightforward interpolation of data is unlikely to reflect the true patterns of d...
متن کاملSlope Estimation from ICESat/GLAS
1 Department of Geography, College of Science, Swansea University, Singleton Park, Swansea, SA28PP, UK; E-mails: [email protected] (N.K.); [email protected] (S.O.L.); [email protected] (P.R.J.N.); [email protected] (J.A.B.R.) 2 Centre for Studies of Carbon Cycle and Climate Interactions (LUCCI), Department of Physical Geography and Ecosystem Science, Lund University, Lund,...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 2014
ISSN: 0022-1430,1727-5652
DOI: 10.3189/2014jog13j129