Description Usage Format Source References Examples
A pollen core from Mohawk Pond, Connecticut in the data structure produced by readGPDascii
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The output format is a data frame with columns:
$counts | count matrix with species in columns, depths in rows |
num [1:50, 1:101] 0 0 0 0 0 0 0 0 0 1 ... | |
..- attr(*, "dimnames")=List of 2 | |
.. ..$ : chr [1:50] "10" "50" "85" "110" ... | |
.. ..$ : chr [1:101] "Abi " "Ace.ne " "Ace.ru " "Ace.sc-t" ... | |
$depths | num [1:50] 10 50 85 110 140 190 210 250 290 310 ... |
$sample.names | chr [1:50] " " " " " " " " ... |
$absolute.ages | num [1:50] 200 365 602 814 1103 ... |
$taxa | chr [1:101] "Abies" "Acer negundo" "Acer rubrum" "Acer saccharinum-type" ... |
$short.names | chr [1:101] "Abi " "Ace.ne " "Ace.ru " "Ace.sc-t" ... |
$tax.cat | Factor w/ 8 levels "-","A","B","F",..: 2 2 2 2 2 2 2 2 2 2 ... |
$metadata | chr [1:75] " GPD ASCII Format" " 24 Apr 00" " Raw Counts - All Pollen Types" "" ... |
ftp://ftp.ncdc.noaa.gov/pub/data/paleo/pollen/asciifiles/fossil/ascfiles/gpd/mohawk.txt
Steventon, R.L., and J.E. Kutzbach. 1983. University of Wisconsin radiocarbon dates XX. Radiocarbon 25:152-168.
Steventon, R.L., and J.E. Kutzbach. 1986. University of Wisconsin radiocarbon dates XXIII. Radiocarbon 28:1206-1223.
Gaudreau, D.C. 1986. Late-Quaternary vegetational history of the northeast: paleoecological implications of topographic patterns in pollen distributions. Dissertation. Yale University, New Haven, Connecticut, USA.
Steventon, R.L., and J.E. Kutzbach. 1984. University of Wisconsin radiocarbon dates XXI. Radiocarbon 26:135-147.
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