You are here: Resources » Reference Library
   
Get syndicated feeds from our Journal!  Add to Technorati Favorites

Vertical Banner 1

   Minimize

Vertical Banner 2

   Minimize

Enter Title

   Minimize

Reference Library

Reference Library

   Minimize

Current Articles | Categories | Search | Syndication

Tuesday, February 7, 2006
A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
By Robert Williscroft @ 9:57 AM :: 6026 Views :: 0 Comments :: Article Rating :: Environment
 

Title

A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada

Download

A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada

Author(s)

Jason P. Briner, Neal Michelutti, Donna R. Francis, Gifford H. Miller, Yarrow Axford, Matthew J. Wooller, Alexander P. Wolfe

Source

Quarternary Research Journal

Publication Date

February 7, 2006

Citation

Briner, J. P., et al., 2006. A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada. Quaternary Research, 65, 431-442.

Abstract

Reconstructions of past environmental changes are critical for understanding the natural variability of Earth’s climate system and for providing a context for present and future global change. Radiocarbon-dated lake sediments from Lake CF3, northeastern Baffin Island, Arctic Canada, are used to reconstruct past environmental conditions over the last 11,200 years. Numerous proxies, including chironomidinferred July air temperatures, diatom-inferred lakewater pH, and sediment organic matter, reveal a pronounced Holocene thermal maximum as much as 5°C warmer than historic summer temperatures from ~10,000 to 8500 cal yr B.P. Following rapid cooling ~8500 cal yr B.P., Lake CF3 proxies indicate cooling through the late Holocene. At many sites in northeastern Canada, the Holocene thermal maximum occurred later than at Lake CF3; this late onset of Holocene warmth is generally attributed to the impacts of the decaying Laurentide Ice Sheet on early Holocene temperatures in northeastern Canada. However, the lacustrine proxies in Lake CF3 apparently responded to insolation-driven warmth, despite the proximity of Lake CF3 to the Laurentide Ice Sheet and its meltwater. The magnitude and timing of the Holocene thermal maximum at Lake CF3 indicate that temperatures and environmental conditions at this site are highly sensitive to changes in radiative forcing.

Notes

Provides data indicating Holocene temperatures on Baffin Island were up to 5° C warmer than today.

Rating
Comments

Most Popular References

   Minimize
Read the Sunspots (Wednesday, June 20, 2007)
v: 7134 | c: 0 Article Rating
Holocene Treeline History and Climate Change Across Northern Eurasia (Tuesday, March 9, 1999)
v: 6833 | c: 0 Article Rating
Ozone Hoax, Not Hole (Wednesday, October 15, 1997)
v: 6459 | c: 2 Article Rating
Solar peak expected in 2011-2012 (Thursday, April 26, 2007)
v: 6158 | c: 0 Article Rating
A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada (Tuesday, February 7, 2006)
v: 6026 | c: 0 Article Rating

CLA

   Minimize
The Chicken Little Agenda: Debunking "Experts’" Lies

Block 1

   Minimize