Variations in the Pacific Decadal Oscillation over the past millennium
- G. MacDonald, R. Case
- Environmental Science, Geography
- 1 April 2005
Hydrologically sensitive tree‐ring chronologies from Pinus flexilis in California and Alberta were used to produce an AD 993–1996 reconstruction of the Pacific Decadal Oscillation (PDO) and to assess…
Disappearing Arctic Lakes
- L. C. Smith, Y. Sheng, G. MacDonald, L. Hinzman
- Environmental ScienceScience
- 3 June 2005
The spatial pattern of lake disappearance suggests (i) that thaw and "breaching" of permafrost is driving the observed losses, by enabling rapid lake draining into the subsurface; and (ii) a conceptual model in which high-latitude warming ofpermafrost triggers an initial but transitory phase of lake and wetland expansion, followed by their widespread disappearance.
Holocene thermal maximum in the western Arctic (0-180°W)
- D. Kaufman, T. Ager, B. Wolfe
- Environmental Science, Geography
- 1 March 2004
Arctic Environmental Change of the Last Four Centuries
- J. Overpeck, K. Hughen, G. Zielinski
- Environmental Science, Geography
- 14 November 1997
A compilation of paleoclimate records from lake sediments, trees, glaciers, and marine sediments provides a view of circum-Arctic environmental variability over the last 400 years. From 1840 to the…
Siberian Peatlands a Net Carbon Sink and Global Methane Source Since the Early Holocene
- L. C. Smith, G. MacDonald, Y. Sheng
- Environmental Science, GeographyScience
- 16 January 2004
Interpolar methane gradient (IPG) data from ice cores suggest the “switching on” of a major Northern Hemisphere methane source in the early Holocene, and Russia's West Siberian Lowland represents a long-term carbon dioxide sink and global methane source since theEarly Holocene.
Rapid Early Development of Circumarctic Peatlands and Atmospheric CH4 and CO2 Variations
- G. MacDonald, D. Beilman, K. Kremenetski, Y. Sheng, L. Smith, A. Velichko
- Environmental Science, GeographyScience
- 13 October 2006
An analysis of 1516 radiocarbon dates demonstrates that the development of the current circumarctic peatlands began ∼16.5 thousand years ago (ka) and expanded explosively between 12 and 8 ka in…
Holocene Treeline History and Climate Change Across Northern Eurasia
- G. MacDonald, A. Velichko, Valery N. Gattaulin
- Environmental Science, GeographyQuaternary Research
- 1 May 2000
Abstract Radiocarbon-dated macrofossils are used to document Holocene treeline history across northern Russia (including Siberia). Boreal forest development in this region commenced by 10,000 yr B.P.…
A database and synthesis of northern peatland soil properties and Holocene carbon and nitrogen accumulation
- J. Loisel, Zicheng Yu, Weijian Zhou
- Environmental Science
- 3 July 2014
Here, we present results from the most comprehensive compilation of Holocene peat soil properties with associated carbon and nitrogen accumulation rates for northern peatlands. Our database consists…
Temperature and precipitation history of the Arctic
- G. Miller, J. Brigham‐Grette, E. Wolff
- Environmental Science, Geography
- 1 July 2010
A high‐resolution GIS‐based inventory of the west Siberian peat carbon pool
- Y. Sheng, L. Smith, P. Dubinin
- Environmental Science
- 1 September 2004
The West Siberian Lowland (WSL) contains the world's most extensive peatlands and a substantial fraction of the global terrestrial carbon pool. Despite its recognition as a carbon reservoir of great…
...
...