Zobrazeno 1 - 10
of 314
pro vyhledávání: '"J. Wingham"'
Autor:
Olga V. Sergienko, Duncan J. Wingham
Publikováno v:
Journal of Glaciology, Vol 68, Pp 124-138 (2022)
This paper examines the effect of basal topography and strength on the grounding-line position, flux and stability of rapidly-sliding ice streams. It does so by supposing that the buoyancy of the ice stream is small, and of the same order as the long
Externí odkaz:
https://doaj.org/article/990911c953ab4a5895ef8d92775740f4
Autor:
O. V. Sergienko, D. J. Wingham
Publikováno v:
Journal of Glaciology, Vol 65, Pp 833-849 (2019)
The dynamics of a marine ice sheet's grounding lines determine the rate of ice discharge from the grounded part of ice sheet into surrounding oceans. In many locations in West Antarctica ice flows into ice shelves through ice streams experiencing low
Externí odkaz:
https://doaj.org/article/091b22302d5d4cad8180bbf4c372245f
Autor:
Duncan J. Wingham, Olga V. Sergienko
Publikováno v:
Journal of Glaciology. 68:124-138
This paper examines the effect of basal topography and strength on the grounding-line position, flux and stability of rapidly-sliding ice streams. It does so by supposing that the buoyancy of the ice stream is small, and of the same order as the long
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc5985d8145d7cb9cee970b0cdb8e668
https://doi.org/10.1017/jog.2021.79
https://doi.org/10.1017/jog.2021.79
Autor:
Olga V. Sergienko, D. J. Wingham
Publikováno v:
Journal of Glaciology. 65:833-849
The dynamics of a marine ice sheet's grounding lines determine the rate of ice discharge from the grounded part of ice sheet into surrounding oceans. In many locations in West Antarctica ice flows into ice shelves through ice streams experiencing low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac90af35c2f5398a85b937c7f32b4d39
https://doi.org/10.1017/jog.2019.53
https://doi.org/10.1017/jog.2019.53
Autor:
Duncan J. Wingham, Olga V. Sergienko
The "marine ice-sheet instability hypothesis", which states that unconfined marine ice sheets are unconditionally unstable on retrograde slopes, was developed under assumptions of negligible bed slopes. Realistic ice sheets, however, flow over beds w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd2cca9b91a084873fb39fdf7b73d816
https://doi.org/10.5194/egusphere-egu21-1413
https://doi.org/10.5194/egusphere-egu21-1413
Autor:
Walter H. F. Smith, Robert Cullen, Natalia Galin, K. A. Giles, Thomas W. K. Armitage, Duncan J. Wingham
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 56:2539-2553
This paper develops a model of the synthetic aperture, interferometric satellite radar altimeter echo power, and echo cross-product. The model uses the smallness of the satellite pitch and roll angles, and the limited range of satellite altitude to p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::386a9cbcdfd20c7818eeabb09cf679f4
https://doi.org/10.1109/tgrs.2017.2756854
https://doi.org/10.1109/tgrs.2017.2756854
Publikováno v:
Nature Geoscience. 8:643-646
Changes in Arctic sea ice volume are difficult to quantify. Five years of satellite data reveal a reduction in autumn sea ice volume in 2010–2012, but a sharp increase in 2013 and 2014, suggesting that ice volume can recover quickly.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80cd4b787a345eb28633d8b06b58809a
https://doi.org/10.1038/ngeo2489
https://doi.org/10.1038/ngeo2489
Autor:
Elizabeth M. Morris, Duncan J. Wingham
Publikováno v:
Journal of Glaciology. 61:345-356
Repeated measurements of density profiles and surface elevation along a 515 km traverse of the Greenland ice sheet are used to determine elevation change rates and the error in determining mass-balance trends from these rates which arises from short-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8526f3f9a0a7dfeb548cbe9c483103a3
https://doi.org/10.3189/2015jog14j123
https://doi.org/10.3189/2015jog14j123
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 11:1399-1403
This letter describes the retrieval of the pitch of the CryoSat-2 satellite from the full bit rate (FBR) SAR mode data that are collected over the ocean by the SAR/Interferometric Radar Altimeter (SIRAL). Starting with the FBR SAR mode data, we form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3220e96aab464db2846d11d1e9c9fb70
https://doi.org/10.1109/lgrs.2013.2293960
https://doi.org/10.1109/lgrs.2013.2293960