forest biomass dataset
DESCRIPTION
Forest biomass dataset. Alterra, Wageningen UR and European Forest Institute. Geerten Hengeveld, Katja Gunia , Markus Didion, Sergey Zudin , Sandra Clerkx, Mart-Jan Schelhaas. Validation data for the CARBONES CCDAS system. Forest pools and uncertainties (annual) - PowerPoint PPT PresentationTRANSCRIPT
Forest biomass dataset
Alterra, Wageningen UR and European Forest Institute
Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx, Mart-Jan Schelhaas
Validation data for the CARBONES CCDAS system
Forest pools and uncertainties (annual)
●Forest area (km2)
●Timber volume (m3)
●Aboveground biomass (kg)
●Carbon in aboveground biomass (kg)
●Belowground biomass (kg)
●Carbon in belowground biomass (kg)
●Total biomass (kg)
●Carbon in total biomass (kg)
●Changes in pools per 5 years
Data
FAO-FRA (Global Forest Resources Assessments)
MCPFE (Europe)
UNECE
●Per Country
●1948-2011 (minimal 5 year interval)
●Forest Area
●Growing Stock
IPCC 2006 good practice guidance for biomass conversion and expansion factors to estimate above-ground and below-ground biomass and carbon
Processing
Quality check: remove outliers
Interpolate in between data points
Extend values outside data range (flat)
Gridding, relative to current forest cover map
Assign uncertainties
Calculations
Stock per Area
1 degree grid
Growing Stock Growing
Stock Growing Stock
IPCC constants
Forest area
Growing Stock
Forest map
Country
Growing Stock Growing
Stock Aboveground
biomass/carbon
Uncertainty assessment
Base uncertainty
●3 classes (1,2,3 points)
●Trend over all records
●Coefficient of variation of detrended records
Methodology uncertainty
●0.025 point per year (pre 1990)
Interpolation uncertainty
●0.1 point per year
Technical specifications
1 degree grid
Global cover
Mollweide projection, Datum WGS84
NetCDF file
Data policy
Free to use
Proper referencing (Hengeveld et al., in prep)
Downloadable at
●the CARBONES portal
●or http://opendap.cgi-systems.nl/thredds/catalog/projecten/EuropeanForest/carbones/catalog.html
Exemple: above ground forest biomass(5 years mean) around 2005
Reference:
Hengeveld, G.M.H., K. Gunia, M. Didion, S. Zudin, A.P.P.M. Clerkx, M.J. Schelhaas. Gridded maps as derived from a compilation of global forest biomass estimates 1950-2010. To be submitted to Earth System Science Data.