Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Roy M. Koerner"'
Autor:
Shawn J. Marshall, Claude Labine, David Burgess, Alex S. Gardner, Sarah Boon, Martin Sharp, Roy M. Koerner, David Lewis
Publikováno v:
Journal of Climate. 22:4281-4298
Distributed glacier surface melt models are often forced using air temperature fields that are either downscaled from climate models or reanalysis, or extrapolated from station measurements. Typically, the downscaling and/or extrapolation are perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2848918c5dff37f64cda19380a66fe2
https://doi.org/10.1175/2009jcli2845.1
https://doi.org/10.1175/2009jcli2845.1
Autor:
Jocelyne Bourgeois, Paul Andrew Mayewski, Eric J. Steig, Mike Demuth, Brian H. Luckman, Dorthe Dahl-Jensen, Cameron P. Wake, Kaplan Yalcin, Karl J. Kreutz, Erich C. Osterberg, James Zheng, Christian Zdanowicz, Art Dyke, Summer Rupper, Kumiko Goto-Azuma, Roy M. Koerner, David A. Fisher
Publikováno v:
The Holocene. 18:667-677
The ice core recovered from Prospector Russell Col on Mt Logan (5.4 km a.s.l.), in the Yukon spans over 20 000 years. This unique record offers a Pacific view of the stable isotope and chemical record from the Lateglacial to the present. The timescal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4ef3337251c12c0339eb2a454c52a5c
https://doi.org/10.1177/0959683608092236
https://doi.org/10.1177/0959683608092236
Autor:
S. Jeffers, Margo M. Burgess, Jocelyne Bourgeois, G. Henry, Sharon L. Smith, K.L. Young, M‐k. Woo, Antoni G. Lewkowicz, A. Walker, Martin Sharp, Stephen A. Wolfe, D.E. Atkinson, K. Wilson, Steve McCourt, B. Alt, Tom Agnew, Humfrey Melling, Ross Brown, Claude R. Duguay, Roy M. Koerner
Publikováno v:
Atmosphere-Ocean. 44:347-375
As of 2003, the warmest year on record in Canada (and globally) was 1998. Extensive warming was observed over the Canadian Arctic during the summer of 1998. A collaborative, interdisciplinary project involving government, universities, and the privat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::764c71383722d9f4806babcd6ba5538c
https://doi.org/10.3137/ao.440403
https://doi.org/10.3137/ao.440403
Autor:
Roy M. Koerner, Glen M. MacDonald, M. Montoay, Julie Brigham-Grette, Patricia M. Anderson, Nancy H. Bigelow, Ole Bennike, S. Marschall, Bianca Fréchette, Daniel R. Muhs, Jonathan T. Overpeck, Jens Matthiessen, Anatoly V. Lozhkin, C. Turner, Gifford H. Miller, Bette L. Otto-Bliesner, Jochen Knies, M. L. Duvall, Mary E. Edwards, H. P. Sejrup, A.A. Velichko, Niels Reeh, Robert F Spielhagen, Svend Funder, Sigfus J Johnsen
Publikováno v:
Quaternary Science Reviews. 25:1383-1400
The warmest millennia of at least the past 250,000 years occurred during the Last Interglaciation, when global ice volumes were similar to or smaller than today and systematic variations in Earth's orbital parameters aligned to produce a strong posit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91e9082aaf02a696fd4c700e93966ad5
https://doi.org/10.1016/j.quascirev.2006.01.033
https://doi.org/10.1016/j.quascirev.2006.01.033
Publikováno v:
Annals of Glaciology. 43:177-186
Three ice cores were recovered on or near Mount Logan, Yukon, Canada, at 3017, 4135 and 5340 ma.s.l. in 2002. Prior to ice-core drilling, we collected snow-pit and shallow core samples from Mount Logan in 2001 to study seasonal and spatial variations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8badab7f3f0d1633ac73f34a3338b2c4
https://doi.org/10.3189/172756406781812096
https://doi.org/10.3189/172756406781812096
Autor:
Roy M. Koerner
Publikováno v:
Annals of Glaciology. 42:417-423
Mass-balance measurements began in the Canadian High Arctic in 1959. This paper considers the >40 years of measurements made since then, principally on two stagnant ice caps (on Meighen and Melville Islands), parts of two ice caps (the northeast sect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::012083623a10269e7c8f8d2846864ec3
https://doi.org/10.3189/172756405781813122
https://doi.org/10.3189/172756405781813122
Publikováno v:
Annals of Glaciology. 42:101-106
In the past, several empirical firn-densification models have been developed fitted to measured density–depth profiles from Greenland and Antarctica. These models do not specifically deal with refreezing of meltwater in the firn. Ice lenses are usu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c20097a7635baf7c8ada050507eaa6a1
https://doi.org/10.3189/172756405781812871
https://doi.org/10.3189/172756405781812871
Autor:
Makoto Igarashi, D. Fritsche, F. Wilhalms, Kokichi Kamiyama, Elisabeth Isaksson, Harro A. J. Meijer, P. Bouisset, M Fournier, Rein Vaikmäe, Jan-Gunnar Winther, Roy M. Koerner, R. S. W. van de Wal, L. Henderson, J. F. Pinglot
Publikováno v:
Scopus-Elsevier
EPIC3Journal of Glaciology:, 49(164), pp. 149-158, ISSN: 0022-1430
Journal of Glaciology, 49(164), 149-158
EPIC3Journal of Glaciology:, 49(164), pp. 149-158, ISSN: 0022-1430
Journal of Glaciology, 49(164), 149-158
The response of Arctic ice masses to climate change is studied using ice cores containing information on past climatic and environmental features. Interpretation of this information requires accurate chronological data. Absolute dating of ice cores f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3dc43a567a7efedd48b5fb612adfccd
https://doi.org/10.3189/172756503781830944
https://doi.org/10.3189/172756503781830944
Publikováno v:
Annals of Glaciology. 35:29-35
In order to reconstruct climatic and environmental changes in the Canadian Arctic, an 85 m deep ice core drilled in 1995 on Penny Ice Cap, Baffin Island, was analyzed for ions and δ18O. In addition to the core, snow-pit samples collected in 1994 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4605d28c4026efc3beaf79108b1df3c0
https://doi.org/10.3189/172756402781817284
https://doi.org/10.3189/172756402781817284
Autor:
Nancy Grummet, Christian Zdanowicz, Paul Andrew Mayewski, Gregory A. Zielinski, Cameron P. Wake, Jocelyne Bourgeois, David A. Fisher, Roy M. Koerner
Publikováno v:
Scopus-Elsevier
The isotopic and chemical signatures for ice-age and Holocene ice from Summit, Greenland, and Penny Ice Cap, Baffin Island, Canada, are compared. the usual pattern of low δ18O, high Ca2+ and high Cl– is presented in the Summit records, but Penny I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fc691f8e5cca3b8d61fd00c4e36c1d1
https://doi.org/10.3189/172756402781817257
https://doi.org/10.3189/172756402781817257