SNF FOREST COVER BY SPECIES/STRATA
Entry ID: SNF_SITECOMP

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Summary
Abstract: The purpose of the SNF study was to improve our understanding of the relationship between remotely sensed observations and important biophysical parameters in the boreal forest. A key element of the experiment was the development of methodologies to measure forest stand characteristics to determine values of importance to both remote sensing and ecology. Parameters studied were biomass, leaf area index, above ground net primary productivity, bark area index and ground coverage by vegetation. Thirty two quaking aspen and thirty one black spruce sites were studied. Use of multiple plots within each site allowed estimation of the importance of spatial variation in stand parameters. Within each plot, all woody stems greater than two meters in height were recorded by species and relevant dimensions were measured. Diameter breast height (dbh) was measured directly. Height of the tree and height of the first live branch were determined by triangulation. The difference between these two heights was used as the depth of crown. Similar measurements were made for shrubs between one and two meters tall in the aspen sites. The Forest Canopy Composition (SNF) data set provides the counts of canopy (over two meters tall) tree species and subcanopy (between one and two meters tall) tree species. Also related, for the aspen sites, in each plot a visual estimation of the percent coverage of the canopy, subcanopy and understory vegetation was made. The site averages of these coverage estimates are presented in the Aspen Forest Cover by Stratum/Plot (SNF) data set.

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Description: SNF FOREST COVER BY SPECIES/STRATA


Geographic Coverage
 N: 48.1697 S: 47.6575  E: -91.7658  W: -92.5058

Data Set Citation
Dataset Originator/Creator: GOETZ, S.J.HALL, F.G.HUEMMRICH, K.F.NICKESON, J.E.STREBEL, D.E.WOODS, K.D.
Dataset Title: SNF FOREST COVER BY SPECIES/STRATA
Dataset Release Date: 1996
Dataset Release Place: Oak Ridge, Tennessee, U.S.A.
Dataset Publisher: Oak Ridge National Laboratory Distributed Active Archive Center
Data Presentation Form: Online Files
Dataset DOI: doi:10.3334/ORNLDAAC/179
Online Resource: http://mercury.ornl.gov/ornldaac/send/query?term2=179&term2attribut...


Temporal Coverage
Start Date: 1976-01-01
Stop Date: 1986-12-31


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MINNESOTA


Science Keywords
BIOSPHERE >VEGETATION >CANOPY CHARACTERISTICS    [Definition]
BIOSPHERE >VEGETATION >FOREST COMPOSITION/VEGETATION STRUCTURE    [Definition]
LAND SURFACE >LAND USE/LAND COVER >LAND COVER    [Definition]
BIOSPHERE >VEGETATION >VEGETATION SPECIES    [Definition]


ISO Topic Category
BIOTA
GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER


Platform
FIELD INVESTIGATION    [Information]


Project
ESIP >Earth Science Information Partners Program    [Information]
EOSDIS >Earth Observing System Data Information System    [Information]
CWIC >CEOS WGISS Integrated Catalog    [Information]
SUPERIOR NATIONAL FOREST    [Information]


Keywords
EOSDIS


Data Set Progress
COMPLETE


Data Center
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC)    [Information]
Data Center URL: http://daac.ornl.gov/
Dataset ID: 179

Data Center Personnel
Name: ORNL DAAC USER SERVICES OFFICE
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA


Personnel
SCOTT J. GOETZ
Role: TECHNICAL CONTACT
Phone: (301) 405-1297
Fax: (301) 314-9299
Email: sgoetz at geog.umd.edu
Contact Address:
University of Maryland
Dept of Geography
LeFrak Bldg
City: College Park
Province or State: MD
Postal Code: 20742
Country: USA


ORNL DAAC USER SERVICES OFFICE
Role: DIF AUTHOR
Phone: (865) 574-7447
Email: uso at daac.ornl.gov
Contact Address:
ORNL DAAC User Services Office
Oak Ridge National Laboratory
City: Oak Ridge
Province or State: TN
Postal Code: 37831-6407
Country: USA



Creation and Review Dates
DIF Creation Date: 1996-10-24
Last DIF Revision Date: 2012-10-24

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