Zobrazeno 1 - 10
of 98
pro vyhledávání: '"William B. Krabill"'
Autor:
William Alex Yearsley, S. Manizade, Brian C. McDonald, Ute Christina Herzfeld, Phillip A. Chen, Bruce F. Wallin, Alexander Weltman, Helmut Mayer, William B. Krabill, John Sonntag
Publikováno v:
Journal of Glaciology. 60:834-848
Our objective is to map dynamic provinces and investigate dynamic changes in Jakobshavn Isbræ, Greenland. We use an approach that combines structural glaciology and remote-sensing data analysis, facilitated by mathematical characterization of genera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b14925fade2b8a282104733efe4d18a8
https://doi.org/10.3189/2014jog13j129
https://doi.org/10.3189/2014jog13j129
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 51:2188-2200
Only in the past eight years has the feasibility of using satellite-borne altimeters to estimate sea ice freeboard and thickness been demonstrated, and these estimates still have uncertainties primarily associated with limited knowledge of snow loadi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4ce5f460832421e4f64485f223697e1
https://doi.org/10.1109/tgrs.2012.2211603
https://doi.org/10.1109/tgrs.2012.2211603
Autor:
Thorsten Markus, Ludovic Brucker, Alvaro Ivanoff, Jack M. Miller, Albin J. Gasiewski, William B. Krabill, Matthew Sturm, John Sonntag, Carl Leuschen, John Heinrichs, James A. Maslanik, Donald J. Cavalieri
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 50:3027-3040
A comparison of snow depths on sea ice was made using airborne altimeters and an Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) simulator. The data were collected during the March 2006 National Aeronautics and Space Ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b053295a9815ea1aedf47b8875de461
https://doi.org/10.1109/tgrs.2011.2180535
https://doi.org/10.1109/tgrs.2011.2180535
Autor:
W. A. Shaffer, B. D. Beckley, Edward J. Walsh, Leonard J. Pietrafesa, Stephen R. Baig, Peter G. Black, C.W. Wright, William B. Krabill, Frank D. Marks, A. W. Garcia, John Sonntag, Machuan Peng
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 26:2200-2215
Over the years, hurricane track forecasts and storm surge models, as well the digital terrain and bathymetry data they depend on, have improved significantly. Strides have also been made in the knowledge of the detailed variation of the surface wind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d67d0fd68ff52cfc90e2481bc5e11777
https://doi.org/10.1175/2009jtecho627.1
https://doi.org/10.1175/2009jtecho627.1
Publikováno v:
Remote Sensing of Environment. 113:563-570
Sea ice thickness is a crucial, but very undersampled cryospheric parameter of fundamental importance for climate modeling. Advances in satellite altimetry have enabled the measurement of sea ice freeboard using satellite microwave altimeters. Unfort
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46dd2536f959adcdb4a06bcdddf85b46
https://doi.org/10.1016/j.rse.2008.10.015
https://doi.org/10.1016/j.rse.2008.10.015
Publikováno v:
Journal of Glaciology. 55:147-162
Aircraft laser-altimeter surveys during the 1990s showed near-coastal parts of the Greenland ice sheet to be thinning; despite slow thickening at higher elevations, the ice sheet lost mass to the ocean. Many outlet glaciers thinned more rapidly than
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1085c0da6d584bfe9e7ec0c78351afd
https://doi.org/10.3189/002214309788608958
https://doi.org/10.3189/002214309788608958
Publikováno v:
Journal of Volcanology and Geothermal Research. 177:531-548
The lidar observations reported here have provided the first high precision topographic data on the active craters of Erebus volcano, Antarctica. Digital elevation data are invaluable for geomorphic analysis of volcanoes especially when combined with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dcc33e3e6903f0a94a6dfa02ea9aebb
https://doi.org/10.1016/j.jvolgeores.2008.08.016
https://doi.org/10.1016/j.jvolgeores.2008.08.016
Autor:
Nathan Kurtz, Donald J. Cavalieri, William B. Krabill, Thorsten Markus, John Sonntag, Jack M. Miller
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 46:1913-1924
Surface elevation and roughness measurements from NASA's Ice, Cloud, and land Elevation Satellite (ICESat) are compared with high-resolution airborne laser altimeter measurements over the Arctic sea ice north of Alaska, which were taken during the Ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e3216a4beaa935fbe40a391e6d9e2e0
https://doi.org/10.1109/tgrs.2008.916639
https://doi.org/10.1109/tgrs.2008.916639
Autor:
S. Manizade, Yonghong Li, Curt H. Davis, E. Frederick, C. Martin, Robert H. Thomas, William B. Krabill
Publikováno v:
Journal of Glaciology. 54:203-212
We compare rates of surface-elevation change on the Greenland ice sheet derived from European Remote-sensing Satellite-2 (ERS-2) radar-altimeter data with those obtained from laser-altimeter data collected over nearly the same time periods. Radar-alt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4794ba51358fee1138f2cf8003b2f00b
https://doi.org/10.3189/002214308784886225
https://doi.org/10.3189/002214308784886225
Publikováno v:
Journal of Glaciology. 54:131-144
Rapid thinning and velocity increase on major Greenland outlet glaciers during the last two decades may indicate that these glaciers became unstable as a consequence of the Jakobshavn effect (Hughes, 1986), with terminus retreat leading to increased
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ebf1f5eed36d99eca74dc8343065ace
https://doi.org/10.3189/002214308784409035
https://doi.org/10.3189/002214308784409035