HR: 1340h
AN: PP43A-0625    [Abstracts]
TI: An Open Source Implementation of the Modern Analog Technique (MAT) Within the R Computing Environment.
AU: * Sawada, M C
EM: msawada@uottawa.ca
AF: Laboratory for Applied Geomatics and GIS Science (LAGGISS), Department of Geography,60 University St., University of Ottawa, Ottawa, ON K1N 6N5 Canada
AU: Viau, A E
EM: aviau@uottawa.ca
AF: Laboratory for Paleoclimatology and Climatology, Department of Geography,60 University St., University of Ottawa, Ottawa, ON K1N 6N5 Canada
AU: Gajewski, K
EM: gajewski@uottawa.ca
AF: Laboratory for Paleoclimatology and Climatology, Department of Geography,60 University St., University of Ottawa, Ottawa, ON K1N 6N5 Canada
AB: We present the development of a complete analytical solution for Quaternary geoscientists applying the Modern Analog Technique (MAT) to fossil biological assemblages. We present a package called MATTOOLS that implements the MAT and offers new calibration techniques related to Monte-Carlo simulation and response operating curves (ROC), both of which are used in assessing the critical thresholds of biological assemblage dissimilarity. MATTOOLS is a complete open-source solution to the MAT and has the advantage of operating in the R language environment and is packaged as a standard R extension. MATTOOLS therefore offers an easily extensible solution for individual research endeavors in both marine/ocean and terrestrial paleoclimate calibration exercises. We review current solutions for MAT calculations and provide an example modern calibration using MATTOOLS.
DE: 9350 North America
DE: 3344 Paleoclimatology
DE: 1694 Instruments and techniques
DE: 1600 GLOBAL CHANGE (New category)
SC: Paleoceanography and Paleoclimatology [PP]
MN: 2004 AGU Fall Meeting