Zobrazeno 1 - 10 of 91 pro vyhledávání: '"H. Jay Zwally"'
1
Akademický článek
Mass balance of the Antarctic ice sheet 1992–2016: reconciling results from GRACE gravimetry with ICESat, ERS1/2 and Envisat altimetry
Autor: H. Jay Zwally, John W. Robbins, Scott B. Luthcke, Bryant D. Loomis, Frédérique Rémy
Publikováno v: Journal of Glaciology, Vol 67, Pp 533-559 (2021)
GRACE and ICESat Antarctic mass-balance differences are resolved utilizing their dependencies on corrections for changes in mass and volume of the same underlying mantle material forced by ice-loading changes. Modeled gravimetry corrections are 5.22
Externí odkaz: https://doaj.org/article/ed03e08c345d4f6cb11abf495e14fd03
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3
Akademický článek
Space Lidar Developed at the NASA Goddard Space Flight Center—The First 20 Years
Autor: Xiaoli Sun, James B. Abshire, Jan F. McGarry, Gregory A. Neumann, James C. Smith, John F. Cavanaugh, David J. Smith, H. Jay Zwally, David E. Smith, Maria T. Zuber
Publikováno v: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 6, Iss 3, Pp 1660-1675 (2013)
During the past 20 years the NASA Goddard Space Flight Center has developed five different lidar for space, and has successfully used them in orbital missions to map Mars, the Earth, the Moon and Mercury. Although similar in some ways, each of these
Externí odkaz: https://doaj.org/article/5261c9a9dc614273acad5bcd31b3e7c9
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4
Simulations of firn processes over the Greenland and Antarctic ice sheets: 1980–2021
Autor: Brooke Medley, Thomas A. Neumann, H. Jay Zwally, Benjamin E. Smith, C. Max Stevens
Publikováno v: The Cryosphere. 16:3971-4011
Conversion of altimetry-derived ice-sheet volume change to mass requires an understanding of the evolution of the combined ice and air content within the firn column. In the absence of suitable techniques to observe the changes to the firn column acr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bac6e74570e1b42016419c3cdc7bfe9
https://doi.org/10.5194/tc-16-3971-2022
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5
Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes
Autor: Matthew R. Siegfried, Johan Nilsson, Nicholas Holschuh, Kaitlin Harbeck, Alex S. Gardner, Brooke Medley, Susheel Adusumilli, Bea Csatho, Ben Smith, Kelly M. Brunt, Thomas Neumann, Fernando S. Paolo, Thorsten Markus, H. Jay Zwally, Helen A. Fricker
Publikováno v: Science. 368:1239-1242
Taking stock of our losses Earth's ice sheets are melting and sea levels are rising, so it behooves us to understand better which climate processes are responsible for how much of the mass loss. Smith et al. estimated grounded and floating ice mass c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54c33f2ebe706129287b5896ed9879ef
https://doi.org/10.1126/science.aaz5845
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6
Forty-year Simulations of Firn Processes over the Greenland and Antarctic Ice Sheets
Autor: Brooke Medley, Benjamin Smith, Thomas Neumann, H. Jay Zwally
Conversion of altimetry-derived ice-sheet volume change to mass requires an understanding of the evolution of the combined ice and air content within the firn column. In the absence of suitable techniques to observe the changes to the firn column acr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc379fdb4d1c419b0d28614fc9504ea3
https://doi.org/10.5194/tc-2020-266
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7
Mass gains of the Antarctic ice sheet exceed losses
Autor: Donghui Yi, John W. Robbins, H. Jay Zwally, Jack L. Saba, Anita C. Brenner, Jun Li
Publikováno v: Journal of Glaciology. 61:1019-1036
Mass changes of the Antarctic ice sheet impact sea-level rise as climate changes, but recent rates have been uncertain. Ice, Cloud and land Elevation Satellite (ICESat) data (2003–08) show mass gains from snow accumulation exceeded discharge losses
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac9a6b0366cf5d6fa9a61426ff6ab065
https://doi.org/10.3189/2015jog15j071
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8
Response times of ice-sheet surface heights to changes in the rate of Antarctic firn compaction caused by accumulation and temperature variations
Autor: Jun Li, H. Jay Zwally
Publikováno v: Journal of Glaciology. 61:1037-1047
Variations in accumulation rate As(t) and temperature Ts(t) at the surface of firn cause changes in the rate of firn compaction (FC) and surface height H(t) that do not involve changes in mass, and therefore need to be accounted for in deriving mass
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::99776db61084589c0d7733f131d19521
https://doi.org/10.3189/2015jog14j182
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