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Mapping Eastern North America Vegetation Change Over the Past 18,000 Years
Entry ID:
NOAA_NCDC_PALEO_94-007
Summary
Abstract:
These maps are based on 11,700 fossil pollen samples and 1744 modern pollen
samples. Twenty-one pollen taxa were included in analyses: Alnus, Fraxinum, Populus, Tilia, Fagus, Betula, Ulmus, Abies, Celtis, Corylus, Tsuga, Carya, Ostrya/Carpinus, Quercus, Pinus, Prairie, Cyperaceae, Picea, Liquidambar, Platanus, and Juglans. Analog/no anolog vegetation types were assigned to a 100x100km at 1000 year intervals using a three dimensional, time-space, interpolation scheme. To generate maps the paleocoast line/ocean and Laurentide Ice Sheet were overlain to mask out appropriate portions of equal area grid boxes. Age estimates are based on uncalibrated radiocarbon dates.
Related URL
Data Set Citation
Dataset Originator/Creator:
R.S. Webb and J.T. Overpeck
Dataset Title:
Array Data for Analog Mapping of Vegetation in Eastern North America
Dataset Series Name:
IGBP PAGES/WDC CONTRIBUTION SERIES NUMBER: 94-007
Dataset Release Date:
July 1994
Dataset Release Place:
Boulder, CO
Dataset Publisher:
IGBP PAGES/World Data Center for Paleoclimatology
Issue Identification:
94-007
Other Citation Details:
NOAA/NCDC Paleoclimatology Program
Online Resource:
http://www.ncdc.noaa.gov/paleo/vegmap.html
Paleo Temporal Coverage
Paleo Start Date:
18000 ybp
Paleo Stop Date: 0 ybp Chrono Unit: Location Keywords
Data Resolution
Latitude Resolution:
0.002 decimal degrees
Longitude Resolution: 0.002 decimal degrees Science Keywords
ISO Topic Category
Quality
This coverage includes only those stations with data actually being served on
the WWW at the time of compilation. Some stations -- and sometimes whole states -- may be excluded because of temporary webserver or network problems. In addition, a station with data may not be shown on the map if its name and location are not yet in the master list.
Access Constraints
None
Use Constraints
None
Ancillary Keywords
Data Set Progress
COMPLETE
Data Center
Personnel
Role:
TECHNICAL CONTACT
Phone:
703-648-4000;1-800-426-9000
Email:
h2oteam at usgs.gov
Contact Address:
USGS National Center
Water Resources Division
12201 Sunrise Valley Drive
City:
Reston
Province or State:
VA
Postal Code:
20192-0002
Country:
USA
Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date:
2003-04-30
Last DIF Revision Date:
2012-12-21
Future DIF Review Date:
2004-04-30
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- Webmaster: Monica Holland
- Responsible NASA Official: Lola Olsen
- Last updated: May 2013
