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Global
Forest Resources Assessment (FRA 2000)
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Available
at:
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http://edcdaac.usgs.gov/glcc/fao/index.asp
http://www.fao.org/forestry/foris/webview/forestry2/index.jsp?siteId=6162&sitetreeId=24684&langId=1&geoId=0
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Data
reference:
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The
Food and Agricultural Organization (FAO) of the United Nations (UN), U.S.
Geological Survey, EROS
Data
Center |
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Year:
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2000
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Version:
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Available
data products:
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Products
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Global
Forest Canopy Density
Global Forest Cover |
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Scale/spatial
resolution:
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1km
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Classification
system:
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Global
Forest Cover Map:
Classification of:
-Land cover (closed forest, open or fragmented forest,
other wooded land, other land cover, and water)
-Forest parameter
(e.g. wood volume, biological diversity, forest management areas)
-Forest changes
processes (ARD)
Global Forest Canopy
Density Map: Proportional cover scale
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Remote
sensing data:
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AVHRR (1995)
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File format:
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Binary
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Interpretation
process:
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Bottom-up
approach (from country level to subregion,
region and global level), but supplemented by global level
verification
The forest map was produced from the Global Land Cover
Characteristics (GLCC) Database (1km res.) derived
from monthly AVHRR composite images processed using a hybrid
maximum-NDVI and minimum-red
compositing technique
Modified mixture analysis, geographic stratification, and
other classification techniques to estimate forest
canopy density within one pixel (= the basis for the classes
‘closed forest’ and ‘open or fragmented forest’. The
remaining three FAO classes were derived using the GLCC as a
stratification tool |
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Projection:
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Interrupted
Goode Homolosine |
Validation:
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Each
participating country need to provide a Country Validation Profile,
validation mainly on the basis of
existing reference data sets |
Objective:
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To appraise
the state of the world’s forests in 2000 and changes since the 1980s
Consideration
of the need for improved forest information for use by national
institutions and international
conventions (UNFCCC, UNCCD, and the Millennium Ecosystem
Assessment) |
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Data
release
policy:
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Open access
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Costs:
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For free
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Updates:
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A five-year
cycle for future global assessments was recommended by the
Intergovernmental Panel on Forests
(IPF)
The FRA 2005 has been requested by the FAO Committee on
Forestry in 2003
Previous global assessments have been carried out at
approximately ten-year intervals (previous FRA in 1990) |
Contact:
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Peter Holmgren, FAO (peter.holmgren@fao.org) |