Lake Athabasca Water Level Reconstruction
Entry ID: NOAA_NCDC_PALEO_2006-059

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Summary
Abstract: Tree-ring reconstructed water level of Lake Athabasca at Ft. Chipewyan,
Alberta Province, Canada.
Reconstructed variable is the 10-day-average water level for the period July
11-20.

Supplementary information can be found in the Meko (2002) BC Hydro report at:
ftp://ftp.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/ca
nada/meko2002.pdf

This report summarizes a tree-ring study of hydrologic variation in the
Peace-Athabasca Delta. The study began with field collections of tree ring
samples from the delta in late July, 2001. Ring widths and stable isotopes of
carbon and oxygen in wood cellulose of rings were analyzed for hydrologic
information. The initial objective was reconstruction of interannual variations
in Lake Athabasca water level for the past 200 years. The study was later
expanded to incorporate a larger network of existing tree-ring chronologies
from western Canada and include reconstruction of streamflow of the Peace and
Athabasca Rivers.

Tree rings of white spruce (Picea glauca) have previously been used to
reconstruct annual variations in Lake Athabasca water level back to the early
1800s (Stockton and Fritts 1973). This study includes an updated
reconstruction of Lake Athabasca water level, and extends the earlier
tree-ring work in several ways:
1) improved tree-ring site coverage of the delta with additional chronologies,
2) increased sample depth at existing tree-ring chronologies,
3) analysis of the statistical relationship between tree-ring indices and
climatic,
4) analysis of stable-isotope variations in cellulose of tree rings,
5) placement of the delta chronologies in the context of tree-ring variations
over a much larger region of western Canada,
6) reconstruction of annual streamflow of the Peace and Athabasca Rivers, and
7) statistical testing of differences in tree-ring data and reconstructed
water-level before and after construction of W.A.C. Bennett Dam.
Key data used in the study are listed in a series of appendices.

Tree ring data available from the International Tree Ring Data Bank:
http://www.ncdc.noaa.gov/paleo/treering.html

Files cana212.rwl - cana219.rwl were used for the reconstruction. These data
include 1970 collections by Fritts and Stockton, and new 2001 collections or
recollections by Meko:

cana212.rwl - Point Providence 2001 Recollection
cana213.rwl - Quatre Fourches 2001 Recollection
cana214.rwl - Horseshoe Slough
cana215.rwl - Revillon Coupe 2001 Recollection
cana216.rwl - Peace/Rouchers 2001 Recollection
cana217.rwl - Athabasca River 2001 Recollection
cana218.rwl - Birch River
cana219.rwl - Mamawi Lake

See Meko (2002) for details.

Related URL
Link: GET DATA
Description: Access to data and documentation


Link: GET DATA
Description: International Tree Ring Databank


Link: VIEW RELATED INFORMATION
Description: Access to documentation (Meko, 2002)


Link: VIEW RELATED INFORMATION
Description: Access to additional lake level data sets


Geographic Coverage
 N: 59.27 S: 59.27  E: -109.45  W: -109.45

Data Set Citation
Dataset Originator/Creator: Meko, D.M.
Dataset Title: Lake Athabasca Water Level Reconstruction
Dataset Series Name: IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2006-059
Dataset Release Date: June 2006
Dataset Release Place: Boulder, CO
Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification: 2006-059
Other Citation Details: NOAA/NCDC Paleoclimatology Program
Online Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/treering/reconstructions/nor...


Temporal Coverage
Start Date: 1801-01-01
Stop Date: 1999-12-31


Location Keywords
CONTINENT > NORTH AMERICA > CANADA
CONTINENT > NORTH AMERICA > CANADA > ALBERTA


Data Resolution
Temporal Resolution: Annual


Science Keywords
PALEOCLIMATE >LAND RECORDS >ISOTOPES    [Definition]
PALEOCLIMATE >LAND RECORDS >TREE RINGS    [Definition]
PALEOCLIMATE >OCEAN/LAKE RECORDS >LAKE LEVELS    [Definition]
PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >LAKE LEVEL RECONSTRUCTION    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Project
PAGES >Past Global Changes, IGBP    [Information]


Keywords
lake levels
Peace-Athabasca Delta
tree-rings


Data Set Progress
COMPLETE


Originating Center
NOAA/NCDC


Data Center
World Data Center for Paleoclimatology, Boulder    [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/

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
Distribution_Format: text
Fees: none


Personnel
DAVE M. MEKO
Role: INVESTIGATOR
Contact Address:
Laboratory of Tree-Ring Research
University of Arizona
City: Tucson
Province or State: AZ
Postal Code: 85721
Country: USA


Publications/References
Meko, D.M. 2002. Tree-ring study of hydrologic variability in the
Peace-Athabasca Delta, Canada. Report summarizing research project contracted to University of Arizona by law firm of Lawson Lundell, 1600 Cathedral Place, 925 West Georgia St., Vancouver, British Columbia, Canada V6C3L2.

Meko D.M. (accepted). Tree-ring inferences on water-level fluctuations of Lake Athabasca. Canadian Water Resources Journal.

Creation and Review Dates
DIF Creation Date: 2006-10-18
Last DIF Revision Date: 2006-10-18

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