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Summary
This data set consists of a 301-year snow accumulation record from
from Mount Logan, Yukon Territory, Canada.

Snow accumulation is in meters, water equivalent, Estimated error +/-
0.05 m (max).

The data have been updated from original 1980 core, in 1981, 1986,
1988 and 2000.

... [Abstract]

The relatively short length of most instrumental climate records
restricts the study of climate variability, and it is therefore
essential to extend the record into the past with the help of proxy
data. Only since the late 1940s have atmospheric data been available
that are sufficient in quality and spatial resolution to identify the
dominant patterns of climate variability, such as the Pacific North
America pattern and the Pacific Decadal Oscillation. Here we present
a 301-year snow accumulation record from an ice core at a height of
5,340 m above sea level - from Mount Logan, in northwestern North
America. This record shows features that are closely linked with the
Pacific North America pattern for the period of instrumental data
availability. Our record extends back in time to cover the period from
the closing stages of the Little Ice Age to the warmest decade in the
past millennium. We find a positive, accelerating trend in snow
accumulation after the middle of the nineteenth century. This trend is
paralleled by a warming over northwestern North America which has been
associated with secular changes in both the Pacific North America
pattern and the Pacific Decadal Oscillation.

Multimedia Sample View full image Caption:  Annual snow accumulation 1700-2000

Geographic Coverage Spatial coordinates    N: 60.62   S: 60.62   E: -140.52   W: -140.52 Min Altitude: 0 M Max Altitude: 5340 M

Data Set Citation

Dataset Creator: Moore, G.W.K., G. Holdsworth, and K. Alverson Dataset Title: Mount Logan Ice Core Isotope and Accumulation Data Dataset Release Date: November 2002 Dataset Release Place: Boulder, CO Dataset Publisher: IGBP PAGES/World Data Center Paleoclimatology Issue Identification: IGBP PAGES/WDC Paleoclimatology Contribution #2002-079 Online Resource: http://www.ngdc.noaa.gov/paleo/pubs/moore2002/moore2002.html

Temporal Coverage

Start Date: 1736-01-01 Stop Date: 2000-12-31

Paleo Temporal Coverage

Paleo Start Date: 300 ybp Paleo Stop Date: 0 ybp Chrono Unit: PHANEROZOIC  >  CENOZOIC  >  QUATERNARY  >  HOLOCENE

Location Keywords

CONTINENT > NORTH AMERICA > CANADA > YUKON TERRITORY > Yukon CONTINENT > NORTH AMERICA GEOGRAPHIC REGION > ARCTIC GEOGRAPHIC REGION > POLAR

Data Resolution

Temporal Resolution: annual

Science Keywords

PALEOCLIMATE > ICE CORE RECORDS > ISOTOPES > OXYGEN CRYOSPHERE > SNOW/ICE > SNOW DEPTH > SNOW ACCUMULATION CLIMATE INDICATORS > TELECONNECTIONS > PACIFIC DECADAL OSCILLATION > PDO

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE INLAND WATERS GEOSCIENTIFIC INFORMATION

Platform

GROUND-BASED OBSERVATIONS

Project

IGBP > International Geosphere-Biosphere Programme PAGES > Past Global Changes, IGBP

Access Constraints
None

Use Constraints
None

Ancillary Keywords

snow accumulation oxygen isotopes proxy data Mount Logan Pacific Decadal Oscillation PDO Yukon Territory Northwest North America

Data Set Progress

COMPLETE

Originating Center

NOAA/NCDC

Data Center

World Data Center for Paleoclimatology, Boulder Data Center URL: http://www.ncdc.noaa.gov/paleo/ Dataset ID: Data Contribution Series #2002-79 Data Center Personnel Name: WDC/PALEOCLIMATOLOGY, BOULDER Phone: +1 (303) 497-6160 Fax: +1 (303) 497-6513 Email: paleo at noaa.gov Contact Address: World Data Center for Paleoclimatology NOAA/NCDC Code E/GCx3 325 Broadway City: Boulder Province or State: CO Postal Code: 80303 Country: USA

Distribution

Distribution Media: online ftp, www Distribution Format: ascii Fees: none

Personnel

G. W.K. MOORE Role: INVESTIGATOR Contact Address: Department of Physics University of Toronto City: Toronto Province or State: Ontario Postal Code: M5S 1A7 Country: Canada GERALD HOLDSWORTH Role: INVESTIGATOR Contact Address: Arctic Institute of North America University of Calgary City: Calgary Province or State: Alberta Postal Code: T2N 1N4 Country: Canada KEITH ALVERSON Role: INVESTIGATOR Contact Address: PAGES International Project Office City: Bern Postal Code: CH-3011 Country: Switzerland

Related URL

Link: GET DATA Description: Access to data and documentation Link: VIEW RELATED INFORMATION Description: Additional data set documentation and graphics

Publications/References
Moore, G.W.K., G. Holdsworth, and K. Alverson, 2002, Climate change in
the North Pacific region over the past three centuries Nature, 420,
6914, 401-403 (28 November 2002); doi:10.1038/nature01229

Holdsworth, G., H.R. Krouse and M. Nosal, 1992, Ice core climate
signals from Mount Logan, Yukon A.D. 1700-1897, In: Climate ... Since
A.D. 1500. Raymond S. Bradley and Philip D. Jones
(eds.). Routledge. London and New York. pp. 483-504.

Monaghan, M.C. and G. Holdsworth, 1990, The origin of non-sea-salt
sulphate in the Mount Logan ice core, Nature 343:245-248.

Holdsworth, G., H.R. Krouse, and E. Peake, 1988, Trace-acid ion
content of shallow snow and ice cores from mountain sites in western
Canada, Annals of Glaciology 10:57-62.

Holdsworth, G. 1992 Ice cores as a source of long-term net
precipitation data: a North American perspective, in Using hydrometric
data to detect and monitor climatic change,
Nat. Hydrol. Res. Institute, Saskatoon, Procedings of Symposium No. 8,
107-120

Holdsworth, G., 2001 Atmospheric teleconnection between Japan and the
Saint Elias Mountains, Yukon, in Environmental Research in the Arctic
2000, Mem. NIPR, Tokyo,special issue No. 54, 161-168.

Creation and Review Dates

DIF Creation Date: 2003-04-10 Last DIF Revision Date: 2009-01-21

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