Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Andrew Shepherd"'
Autor:
Robert Mulvaney, Brooke Medley, Hannes Konrad, Anna E. Hogg, Robert J. Arthern, Andrew Shepherd, Rebecca Tuckwell
Surface mass balance (SMB) is the net input of mass on a glacier's upper surface, composed of snow deposition, melt and erosion processes, and is a major contributor to the overall mass balance. Pine Island Glacier (PIG) in West Antarctica has been d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85cb2efb300368637ebb374b8b8c7e94
https://www.cambridge.org/core/journals/journal-of-glaciology/article/observations-of-surface-mass-balance-on-pine-island-glacier-west-antarctica-and-the-effect-of-strain-history-in-fastflowing-sections/4F04455D66CB8E3D5B65B301813E1F2F
https://www.cambridge.org/core/journals/journal-of-glaciology/article/observations-of-surface-mass-balance-on-pine-island-glacier-west-antarctica-and-the-effect-of-strain-history-in-fastflowing-sections/4F04455D66CB8E3D5B65B301813E1F2F
Autor:
Malcolm McMillan, Robert Cullen, Hugh F. J. Corr, Andrew Ridout, Seymour W. Laxon, Andrew Shepherd
Publikováno v:
Geophysical Research Letters. 40:4321-4327
We analyze data acquired by the CryoSat-2 interferometric radar altimeter and demonstrate its novel capability to track topographic features on the Antarctic Ice Sheet. We map the perimeter and depth of a 260 km2 surface depression above an Antarctic
Publikováno v:
Geophysical Research Letters. 40:2137-2142
We use satellite observations to show that, between 1992 and 2011, the Pine Island Glacier hinge line retreated at a rate of 0.95 ± 0.09 km yr−1 despite a progressive steepening and shoaling of the glacier surface and bedrock slopes, respectively,
Publikováno v:
Geophysical Research Letters. 43:12-12,145
We apply swath processing to CryoSat-2 interferometric mode data acquired over the Icelandic ice caps to generate maps of rates of surface elevation change at 0.5 km postings. This high-resolution mapping reveals complex surface elevation changes in
Publikováno v:
Journal of Glaciology. 55:834-838
We have computed the velocity of Langjökull ice cap (LIC), Iceland, using InSAR data acquired by the European Remote-sensing Satellite in 1994 and an ice-surface elevation model derived from a GPS survey conducted in 1997. The velocity map covers 68
Publikováno v:
Journal of Glaciology. 54:41-48
Rutford Ice Stream and Carlson Inlet are neighbouring glaciers in West Antarctica. Rutford Ice Stream flows at speeds greater than 350 m a−1, whereas Carlson Inlet, which has some similar dimensions and supports a similar driving stress, flows 10
Publikováno v:
Palmer, S J, Shepherd, A, Sundal, A, Rinnem, E & Nienow, P 2010, ' InSAR observations of ice elevation and velocity fluctuations at the Flade Isblink ice cap, eastern North Greenland ', Journal of Geophysical Research, vol. 115, F04037, pp.-. https://doi.org/10.1029/2010JF001686
The 8500 km(2) Flade Isblink ice cap (FIIC) (81 degrees 15'N, 15 degrees 0'W) is the largest ice cap in Greenland. We use repeat-pass interferometric synthetic aperture radar (InSAR) techniques to investigate the form and flow of the FIIC. European R
Publikováno v:
Geophysical Research Letters. 36
We use ERS-2 and ENVISAT satellite radar altimetry to examine spatial and temporal changes in the rate of thinning of the Pine Island Glacier, West Antarctica, during the period 1995 to 2006. We show that the pattern of thinning has both accelerated
Techniques for measuring high-resolution firn density profiles: case study from Kongsvegen, Svalbard
Autor:
Ola Brandt, Elizabeth M. Morris, Duncan J. Wingham, Jack Kohler, Robert L. Hawley, Andrew Shepherd
Publikováno v:
Journal of Glaciology
On an 11 m firn/ice core from Kongsvegen, Svalbard, we have used dielectric profiling (DEP) to measure electrical properties, and digital photography to measure a core optical stratigraphy (COS) profile. We also used a neutron-scattering probe (NP) t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::055faad1fc9758e16adf07a5fadfe1fe
https://hdl.handle.net/11250/174348
https://hdl.handle.net/11250/174348
Satellite observations revealed that beside a rapid thinning, the Larsen B ice shelf (LBIS) was undergoing a significant acceleration before its collapse in 2002. This paper investigates the ice shelf acceleration between 1995 and 1999 using a combin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac126a9b5ed7f3f85cfa9f2cd3a822e3
https://www.zora.uzh.ch/id/eprint/136288/
https://www.zora.uzh.ch/id/eprint/136288/