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Quelccaya Ice Cap, Peru Data Readme
Quelccaya Ice Core Database: Quelccaya.readme file
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World Data Center A- Paleoclimatology
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NOTE: PLEASE CITE ORIGINAL REFERENCES WHEN USING THIS DATA!!!!!
NAME OF DATA SET: Quelccaya Ice Core Database
LAST UPDATE: 5/92, Period of record extended to 1500 years
CONTRIBUTORS: L.Thompson, E. Mosley-Thompson, The Ohio State University
IGBP PAGES/WDCA Data Contribution Series #: 92-008
SUGGESTED DATA CITATION:
Thompson, L., 1992, Quelccaya Ice Core Database. IGBP PAGES/World Data Center-A for Paleoclimatology Data Contribution Series # 92-008. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.
ORIGINAL REFERENCES:
Thompson and Mosley-Thompson, One-half millennia of tropical climate variability as recorded in the stratigraphy of the Quelccaya Ice Cap, Peru,1989, Geophysical Monograph 55, American Geophysical Union.
Tropical Ice Core Paleoclimatic Records: Quelccaya Ice Cap, Peru, A.D. 470 to 1984, The Ohio State University, Byrd Polar Research Center, distributed by NGDC, 325 Broadway, Boulder, CO 80303 USA.
GEOGRAPHIC REGION: South America
PERIOD OF RECORD: 470 A.D.-1984 A.D.
LIST OF FILES: Q83SUM.ALL, Q83COR1.ALL, FIELDCON.TAB
DESCRIPTION:
This data set contains data derived from the Quelccaya Summit Ice Core by Drs. Lonnie Thompson and Ellen Mosley-Thompson of The Ohio State University. The data was updated in May 1992 to extend the data period of record. A printed documentation volume is now available from NGDC. The data contained in the files 'Q83SUM.ALL' and 'Q83COR1.ALL' represent the annual information for the summit core and core 1, drilled in 1983. The data for the year 1984 are from a pit excavated in the year following the drilling and thus the 1984 data are the same for both the summit core and core 1. The columns in the tables are as follows:
Column 1: Thermal Year
Columns 2,3, and 4: Particulate concentrations are measured using the
Coulter counter technique and are total concentrations per milliliter sample for the following size ranges:
(in order from left to right):
Particles with diameters from 0.63 to 0.83 um, particles with diameters less than 0.63 um, Particles with diameters greater than 1.59 um
Column 5: Conductivity in uS CM-1
Column 6: Oxygen Isotopic Ratios (o/oo)
Column 7: Net annual accumulation(Meters of water equivalent)
Column 8: Net annual accumulation as standard deviations from the complete series mean.
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Last Updated Wednesday, 20-Aug-2008 11:24:22 EDT by paleo@noaa.gov
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