Title | Recent melt rates of Canadian arctic ice caps are the highest in four millennia |
| |
Author | Fisher, D; Zheng, J ; Burgess, D ; Zdanowicz, C; Kinnard, C; Sharp, M;
Bourgeois, J |
Source | Global and Planetary Change 2011 p. 1-5, https://doi.org/10.1016/j.gloplacha.2011.06.005 |
Image |  |
Year | 2011 |
Alt Series | Earth Sciences Sector, Contribution Series 20110143 |
Publisher | Elsevier BV |
Document | serial |
Lang. | English |
Media | paper; on-line; digital |
File format | pdf |
Province | Nunavut |
NTS | 26O; 48H; 39F; 340A |
Area | Arctic; 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 |
Subjects | surficial 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 |
Illustrations | location maps; photographs; graphs; plots; histograms |
Program | Climate Change Geoscience |
Released | 2012 03 01 |
Abstract | There 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. |
GEOSCAN ID | 289117 |
|
|