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Tree-ring Carbon Isotope Data and Drought Maps for the U.S. Southwest

Entry ID: NOAA_NCDC_PALEO_2007-010

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Summary

Abstract: Tree-ring widths have long been a useful North American drought proxy
[e.g., Cook et al., 1999, 2004]. A potentially rich, new tree-ring proxy
associated with the tree's leaf-level moisture status is stable-carbon
isotope composition (d13C = [13C/12Csample + 13C/12Cstandard - 1] x 1000),
which is determined by both the rate of carbon assimilation and the rate
of gas conductance through leaf stomata [Farquhar et al., 1982]. In the
U.S. Southwest, where evaporation exceeds precipitation, drought may be
the dominant influence on plant d13C [Warren et al., 2001], so measurements
of tree-ring d13C in a network of southwestern sites has allowed for
spatially mapping this ecophysilogical indicator back to A.D. 1600.

Related URL

Link: GET DATA

Description: Access to data files

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 42.0

S: 30.0

E: -105.0

W: -130.0

Data Set Citation

Dataset Originator/Creator: Leavitt, S.W., T.N. Chase, B. Rajagopalan, E. Lee, P.J. Lawrence, and C.A. Woodhouse

Dataset Title: Tree-ring Carbon Isotope Data and Drought Maps for the U.S. Southwest

Dataset Series Name: IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2007-010

Dataset Release Date: January 2007

Dataset Release Place: Boulder, CO

Dataset Publisher: IGBP PAGES/World Data Center for Paleoclimatology

Issue Identification: 2007-010

Other Citation Details: NOAA/NCDC Paleoclimatology Program

Online Resource: http://www.ncdc.noaa.gov/paleo/treering/isotope/iso-drought.html

Temporal Coverage

Start Date: 1490-01-01

Stop Date: 1494-12-31

Location Keywords

CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA

Data Resolution

Latitude Resolution: 1 degree
Longitude Resolution: 1 degree
Temporal Resolution: pentad
Temporal Resolution Range: Pentad Climatology

Science Keywords

ATMOSPHERE > ATMOSPHERIC PHENOMENA > DROUGHT

BIOSPHERE > VEGETATION > TREE RINGS

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

MAPS

Project

PAGES > Past Global Changes, IGBP

Quality Acknowledgements:
http://www.ncdc.noaa.gov/paleo/treering/isotope/iso-droughtack.html

Ancillary Keywords

d13C

Tree-rings

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/

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: ftp

Distribution Format: text, maps

Fees: none

Personnel

STEVEN W. LEAVITT

Role: INVESTIGATOR

Contact Address:

Lab. of Tree-Ring Research

University of Arizona

City: Tucson

Province or State: AZ

Postal Code: 85721

Country: USA

Publications/References

Leavitt, S.W., T.N. Chase, B. Rajagopalan, E. Lee, P.J. Lawrence, and C.A. Woodhouse. 2007. Southwestern U.S. Drought Maps From Pinyon Tree-Ring Carbon Isotopes. EOS, Volume 88, Number 4, pp. 39-40, 23 January 2007.

See also:
http://www.ncdc.noaa.gov/paleo/treering/isotope/iso-droughtrefs.html

Creation and Review Dates

DIF Creation Date: 2007-05-08

Last DIF Revision Date: 2007-05-09

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