Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Edwin D. Waddington"'
Autor:
Annika N. Horlings, Knut Christianson, Nicholas Holschuh, C. Max Stevens, Edwin D. Waddington
Publikováno v:
Journal of Glaciology, Vol 67, Pp 287-296 (2021)
Ice-sheet mass-balance estimates derived from repeat satellite-altimetry observations require accurate calculation of spatiotemporal variability in firn-air content (FAC). However, firn-compaction models remain a large source of uncertainty within ma
Externí odkaz:
https://doaj.org/article/301454f1fb55432ebb6ddbe290d5f131
Autor:
DAN KLUSKIEWICZ, EDWIN D. WADDINGTON, SRIDHAR ANANDAKRISHNAN, DONALD E. VOIGT, KENICHI MATSUOKA, MICHAEL P. McCARTHY
Publikováno v:
Journal of Glaciology, Vol 63, Pp 603-617 (2017)
We describe methods for measuring crystal orientation fabric with sonic waves in an ice core borehole, with special attention paid to vertical-girdle fabrics that are prevalent at the WAIS Divide. The speed of vertically propagating compressional wav
Externí odkaz:
https://doaj.org/article/12af70a67c97417dbef04fed621360ba
Autor:
JESSICA M.D. LUNDIN, C. MAX STEVENS, ROBERT ARTHERN, CHRISTO BUIZERT, ANAIS ORSI, STEFAN R.M. LIGTENBERG, SEBASTIAN B. SIMONSEN, EVAN CUMMINGS, RICHARD ESSERY, WILL LEAHY, PAUL HARRIS, MICHIEL M. HELSEN, EDWIN D. WADDINGTON
Publikováno v:
Journal of Glaciology, Vol 63, Pp 401-422 (2017)
Evolution of cold dry snow and firn plays important roles in glaciology; however, the physical formulation of a densification law is still an active research topic. We forced eight firn-densification models and one seasonal-snow model in six differen
Externí odkaz:
https://doaj.org/article/4f6b06da84474268adbe406392f21de4
Autor:
C. Max Stevens, David A. Lilien, Howard Conway, T. J. Fudge, Michelle R. Koutnik, Edwin D. Waddington
Publikováno v:
Journal of Glaciology, Pp 1-15
Converting measurements of ice-sheet surface elevation change to mass change requires measurements of accumulation and knowledge of the evolution of the density profile in the firn. Most firn-densification models are tuned using measured depth–dens
Externí odkaz:
https://doaj.org/article/d725d94676d44dd99dde3e01e5f8dbf4
Autor:
Michael J. MacFerrin, C. Max Stevens, Baptiste Vandecrux, Edwin D. Waddington, Waleed Abdalati
Publikováno v:
Earth System Science Data. 14:955-971
Assessing changes in the density of snow and firn is vital to convert volume changes into mass changes on glaciers and ice sheets. Firn models simulate this process but typically rely upon steady-state assumptions and geographically and temporally li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f4ab70741e425f30125e854fbeeebb2
https://doi.org/10.5194/essd-14-955-2022
https://doi.org/10.5194/essd-14-955-2022
Autor:
Tyler J. Fudge, Raphael Sauvage, Linh Vu, Benjamin H. Hills, Mirko Severi, Edwin D. Waddington
Publikováno v:
eISSN
Volcanic deposition of sulfuric acid in ice cores is important both for understanding past volcanic activity and for synchronizing ice core timescales. Sulfuric acid has a low eutectic point, so it can potentially exist in liquid at grain boundaries
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0114130bf2e484f96a9c0b0751a2ca70
https://doi.org/10.5194/egusphere-2022-1219
https://doi.org/10.5194/egusphere-2022-1219
Autor:
Nicholas Holschuh, C. Max Stevens, Knut Christianson, Annika N. Horlings, Edwin D. Waddington
Publikováno v:
Journal of Glaciology. 67:287-296
Ice-sheet mass-balance estimates derived from repeat satellite-altimetry observations require accurate calculation of spatiotemporal variability in firn-air content (FAC). However, firn-compaction models remain a large source of uncertainty within ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1770a84a72fef886dbab3660a99bb88b
https://doi.org/10.1017/jog.2020.105
https://doi.org/10.1017/jog.2020.105
Assessing changes in the density of snow and firn is vital to convert volume changes into mass changes on glaciers and ice sheets. Firn models simulate this process but typically rely upon steady-state assumptions and geographically and temporally li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d9bc609c1837b9c2cb079735afef63b
https://essd.copernicus.org/preprints/essd-2021-274/
https://essd.copernicus.org/preprints/essd-2021-274/
Autor:
Bruce H. Vaughn, Tyler R. Jones, Christo Buizert, Michelle Koutnik, Tyler J. Fudge, Emma C. Kahle, Valerie Morris, Howard Conway, James W. C. White, Jenna Epifanio, C. Max Stevens, Andrew J. Schauer, Eric J. Steig, Edwin D. Waddington
Data from the South Pole ice core (SPC14) are used to constrain climate conditions and ice-flow-induced layer thinning for the last 54,000 years. Empirical constraints are obtained from the SPC14 i...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7a8ca28511fdd816bfd1381e60d304a
https://doi.org/10.1002/essoar.10503447.3
https://doi.org/10.1002/essoar.10503447.3
Autor:
Edwin D. Waddington, Bernard Hallet
Publikováno v:
Periglacial Geomorphology ISBN: 9781003028901
Indications of diapirism and soil circulation are common in periglacial areas, but governing mechanisms remain unclear. We explore the possibility that such motion may be driven, at least in part, by buoyancy forces that arise seasonally in thawing i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd15b1dac2dc8fbf4ddde0433a5dc670
https://doi.org/10.4324/9781003028901-11
https://doi.org/10.4324/9781003028901-11