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TitleRecent melt rates of Canadian arctic ice caps are the highest in four millennia
AuthorFisher, D; Zheng, JORCID logo; Burgess, DORCID logo; Zdanowicz, C; Kinnard, C; Sharp, M; Bourgeois, J
SourceGlobal and Planetary Change 2011 p. 1-5,
Alt SeriesEarth Sciences Sector, Contribution Series 20110143
PublisherElsevier BV
Mediapaper; on-line; digital
File formatpdf
NTS26O; 48H; 39F; 340A
AreaArctic; Devon Island; Ellesmere Island; Baffin Island
Lat/Long WENS -68.0000 -66.0000 68.0000 67.0000
Lat/Long WENS -84.0000 -80.0000 76.0000 75.0000
Lat/Long WENS -80.0000 -76.0000 79.0000 78.0000
Lat/Long WENS -80.0000 -72.0000 81.0000 80.0000
Subjectssurficial geology/geomorphology; environmental geology; Nature and Environment; climate, arctic; climate; ground ice; ice thicknesses; icefields; Devon Ice Cap; Prince of Wales Ice Field; Agassiz Ice Field; Penny Ice Cap; Climate change
Illustrationslocation maps; photographs; graphs; plots; histograms
ProgramClimate Change Geoscience
Released2012 03 01
AbstractThere has been a rapid acceleration in ice-cap melt rates over the last few decades across the entire Canadian Arctic. Present melt rates exceed the past rates for many millennia. New shallow cores at old sites bring their melt series up-to-date. The melt-percentage series from the Devon Island and Agassiz (Ellesmere Island) ice caps are well correlated with the Devon net mass balance and show a large increase in melt since the middle 1990s. Arctic ice core melt series (latitude range of 67 to 81 N) show the last quarter century has had the highest melt in two millennia and The Holocene-long Agassiz melt record shows that the last 25 years has the highest melt in 4200 years. The Agassiz melt rates since the middle 1990s resemble those of the early Holocene thermal maximum over 9000 years ago.

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