noaa-recon-5696
Leavitt et al. 2007 Southwestern U.S. Drought Maps From Pinyon Tree-Ring Carbon Isotopes
Leavitt, S.W.; Chase, T.N.; Rajagopalan, B.; Lee, E.; Lawrence, P.J.; Woodhouse, C.A.
Leavitt et al. 2007 Southwestern U.S. Drought Maps From Pinyon Tree-Ring Carbon Isotopes
2007-07-01
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/5696
Investigator
S.W.
Leavitt
Investigator
T.N.
Chase
Investigator
B.
Rajagopalan
Investigator
E.
Lee
Investigator
P.J.
Lawrence
Investigator
C.A.
Woodhouse
earth science
paleoclimate
climate reconstructions|tree ring
age,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null
earth science
paleoclimate
climate reconstructions|tree ring
moisture index,null,null,dimensionless,null,climate reconstructions|tree ring,null,null,N,Single-year drought indices are derived from a straight-line fit to the 1985-1999 d13C values
earth science
paleoclimate
climate reconstructions|tree ring
moisture index,null,null,dimensionless,null,climate reconstructions|tree ring,null,null,N,"1600-04 to 1975-79 isotope drought indices are all from the spline curves with stiffness=50 from the Leavitt & Long (1989) paper. 1980-84 isotope drought index is from spline fit to full chronology of d13C at each site, using average annual d13C values from 1985-89 to produce mean pentad drought indexes for 1985-89, 1990-94 and 1995. 1985-89, 1990-94 and 1995-99 isotope drought indices are also from the same spline fit using the average of 5 single-year d13C values as the pentad values."
earth science
paleoclimate
tree ring
delta 13C,null,null,per mil PDB,null,tree ring,averaged,null,N,pentad averages
earth science
paleoclimate
climate reconstructions|tree ring
moisture index,null,null,dimensionless,null,climate reconstructions|tree ring,null,null,N,"1600-04 to 1975-79 isotope drought indices are all from the spline curves with stiffness=50 from the Leavitt & Long (1989) paper. 1980-84 isotope drought index is from spline fit to full chronology of d13C at each site, using average annual d13C values from 1985-89 to produce mean pentad drought indexes for 1985-89, 1990-94 and 1995. 1985-89, 1990-94 and 1995-99 isotope drought indices are the average of 5 single-year d13C values--- NOT a result of a spline fit to pentads."
earth science
paleoclimate
climate reconstructions|tree ring
age at sample start,null,null,year Common Era,null,climate reconstructions|tree ring,null,null,N,null
earth science
paleoclimate
tree ring
age at sample start,null,null,year Common Era,null,tree ring,null,null,N,null
earth science
paleoclimate
tree ring
age,null,null,year Common Era,null,tree ring,null,null,N,null
earth science
paleoclimate
reconstructions
ground water
geoscientificInformation
Other Hydroclimate Reconstruction
drought
1600 AD
1999 AD
350 cal yr BP
-49 cal yr BP
Complete
31
42
-121
-101
Continent
North America
United States Of America
Southwestern United States>LATITUDE >LONGITUDE
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
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Bruce
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paleo@noaa.gov
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online
ASCII
Records of past temperature, precipitation, and other climate variables derived from paleoclimate proxies. Parameter keywords describe what was measured in this data set. Additional summary information can be found in the abstracts of papers listed in the data set citations.
STUDY NOTES: This study utilizes
14 pinyon pine sites collected across 6 states in the American Southwest
to develop Drought Indices using d13C analysis. IITRDB4
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/northamerica/usa/leavitt2007/
Data Folder;
USA/NOAA
DIF
Version 9.8.4
2019-03-01
2019-03-01