Comparison of Foraminifer SST Estimating Techniques: Readme file
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          World Data Center for Paleoclimatology, Boulder
                             and
                 NOAA Paleoclimatology Program
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NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!!

NAME OF DATA SET: Comparison of Foraminifer SST Estimating Techniques
LAST UPDATE: 10/2001 (Original Receipt by WDCA Paleo)  
CONTRIBUTORS: Dr. Michal Kucera, University of London

IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2001-067

SUGGESTED DATA CITATION: Malmgren, B.A., et al., 2001, 
Comparison of Foraminifer SST Estimating Techniques, 
IGBP PAGES/World Data Center A for Paleoclimatology 
Data Contribution Series #2001-067. 
NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. 

ORIGINAL REFERENCE:  
Malmgren, B.A., Kucera, M., Nyberg, J., and Waelbroeck, C., 2001. 
Comparison of statistical and artificial neural network techniques 
for estimating past sea-surface temperatures from planktonic foraminifer 
census data. Paleoceanography, 16(5): 520-530, October 2001.

ADDITIOPAL REFERENCES:
McIntyre, A., W.F. Ruddiman, K. Karlin, and A.C. Mix, 1989, 
Surface water response of the equatorial Atlantic Ocean to orbital forcing, 
Paleoceanography, 4, 19-55, 1989.

Nyberg, J., A. Kuijpers, B. A. Malmgren, and H. Kunzendorf, 2001,
Late Holocene changes in precipitation and hydrography recorded in 
marine sediments from the northeastern Caribbean Sea, 
Quaternary Research 56, 87-102.

Pflaumann, U., J. Duprat, C. Pujol, and L. Labeyrie, 1996, 
SIMMAX: A modern analog technique to deduce Atlantic sea surface 
temperatures from planktonic foraminifera in deep-sea sediments, 
Paleoceanography, 11, 15-35.


GEOGRAPHIC REGION: Atlantic Ocean
PERIOD OF RECORD: 

LIST OF FILES: readme_malmgren2001.txt (this file),
PRBcensus.xls, PRB-12_predictions.xls, V2559_predictions.xls,
(Microsoft Excel Format), Train_test_partitions.zip
(WinZip archive file).  Subdirectories contain individual text
files contained in the Excel Worksheets and WinZIP archive.



DESCRIPTION:

1. PRBcensus.xls
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This self-explanatory excel (v97, Windows) file contains census counts 
of 26 taxa of planktonic foraminifera in the two coretop samples from 
box cores PRB-07 and PRB-12 as well as counts for the top 24 cm of 
box core PRB-12. These two cores were added to the 738 coretop database 
of Pflaumann et al [1996]. Details on these cores are in Table 1 of the paper:
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Table 1. Data on the two cores added to the coretop database compiled by 
Pflaumann et al. [1996]. Both cores were taken off Puerto Rico in December 1994. 
"WS" represents warm-season SST and "CS" cold-season SST, "N" is the number 
of planktonic foraminifera counted in each sample. 

Core	Water Depth(m)	Latitude(N)	Longitude(W)	Dating	WS SST(ºC)	CS SST(ºC)	N
PRB-7	273	17° 52.82'	66° 35.90'	N/A	28.52	26.60	382
PRB-12	360	17° 53.27'	66° 36.02'	Pb-210	28.52	26.60	334
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The cores are described in detail in Nyberg et al. [2001].


2. Train_test_partitions.zip
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A set of files containing the training and test partitions of the 740 coretop dataset. 
Each file name is a code indicating what it contains.

SS9A.TST means SummerSST/partition 9/test set
WS1A.TRN means WinterSST/partition 1/training set

3. PRB-12_predictions.xls
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This self-explanatory excel (v97, Windows) file contains SST reconstructions 
in core PRB-12 using the various computational techniques described in the paper.

4. V2559_predictions.xls
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This self-explanatory excel (v97, Windows) file contains SST reconstructions 
in core V 25-59 using the various computational techniques described in the paper.

see page 522:
Planktonic foraminifer census data from the low latitude core V 25-59 
(Figure 1; 1º22'N, 33º29'W) were used to assess the differences in SST reconstructions 
among the techniques when applied to this fossil dataset, presumably containing many 
no-analog samples. The original dataset by McIntyre et al. [1989], comprising 45 species 
and species groups, was culled to include only the taxonomic categories used in the 
database of Pflaumann et al. [1996].