Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja...
-
Upload
ashlyn-payne -
Category
Documents
-
view
220 -
download
0
description
Transcript of Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja...
![Page 1: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/1.jpg)
Forest biomass dataset
Alterra, Wageningen UR and European Forest Institute
Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx, Mart-Jan Schelhaas
![Page 2: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/2.jpg)
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
![Page 3: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/3.jpg)
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
![Page 4: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/4.jpg)
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
![Page 5: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/5.jpg)
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
![Page 6: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/6.jpg)
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
![Page 7: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/7.jpg)
Technical specifications
1 degree grid Global cover Mollweide projection, Datum WGS84 NetCDF file
![Page 8: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/8.jpg)
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
![Page 9: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/9.jpg)
Exemple: above ground forest biomass(5 years mean) around 2005
![Page 10: Forest biomass dataset Alterra, Wageningen UR and European Forest Institute Geerten Hengeveld, Katja Gunia, Markus Didion, Sergey Zudin, Sandra Clerkx,](https://reader033.fdocuments.in/reader033/viewer/2022051521/5a4d1aef7f8b9ab05997d282/html5/thumbnails/10.jpg)
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.