Globe North America - Central America North America - Eastern United States North America - Southern Canada North America - Western United States

	Download Data	Period Mean (original grids) [Pg]	Model Period Mean (intersection) [Pg]	Model Period Mean (complement) [Pg]	Benchmark Period Mean (intersection) [Pg]	Benchmark Period Mean (complement) [Pg]		Bias [kg m-2]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	26.2
CRUJRA	[-]	614.	21.2	592.	26.1	0.0878		-0.370		0.624	0.879	0.751
CRUNCEPv7	[-]	589.	21.7	567.	26.1	0.0878		-0.243		0.616	0.874	0.745
GSWP3v1	[-]	487.	15.3	472.	26.1	0.0878		-1.07		0.599	0.789	0.694
WATCH	[-]	505.	17.4	488.	26.1	0.0878		-0.829		0.630	0.805	0.717

	Download Data	Period Mean (original grids) [Pg]	Model Period Mean (intersection) [Pg]	Model Period Mean (complement) [Pg]	Benchmark Period Mean (intersection) [Pg]	Benchmark Period Mean (complement) [Pg]		Bias [kg m-2]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	0.00338
CRUJRA	[-]	11.2	0.0322	10.9	0.00338			0.446		0.164	0.258	0.211
CRUNCEPv7	[-]	11.9	0.0255	11.6	0.00338			0.302		0.360	0.401	0.380
GSWP3v1	[-]	10.2	0.0260	9.91	0.00338			0.333		0.269	0.365	0.317
WATCH	[-]	10.8	0.0329	10.6	0.00338			0.444		0.0850	0.183	0.134

	Download Data	Period Mean (original grids) [Pg]	Model Period Mean (intersection) [Pg]	Model Period Mean (complement) [Pg]	Benchmark Period Mean (intersection) [Pg]	Benchmark Period Mean (complement) [Pg]		Bias [kg m-2]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	17.5
CRUJRA	[-]	17.1	16.8	0.249	17.4	0.0333		0.124		0.682	0.929	0.805
CRUNCEPv7	[-]	17.8	17.4	0.303	17.4	0.0333		0.386		0.671	0.907	0.789
GSWP3v1	[-]	12.0	11.6	0.234	17.4	0.0333		-1.09		0.649	0.883	0.766
WATCH	[-]	13.9	13.6	0.224	17.4	0.0333		-0.644		0.693	0.890	0.792

	Download Data	Period Mean (original grids) [Pg]	Model Period Mean (intersection) [Pg]	Model Period Mean (complement) [Pg]	Benchmark Period Mean (intersection) [Pg]	Benchmark Period Mean (complement) [Pg]		Bias [kg m-2]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	0.222
CRUJRA	[-]	54.3	0.804	53.6	0.222			6.85		0.323	0.479	0.401
CRUNCEPv7	[-]	56.8	0.907	56.1	0.222			8.04		0.289	0.391	0.340
GSWP3v1	[-]	43.6	0.598	43.2	0.222			4.61		0.414	0.642	0.528
WATCH	[-]	38.9	0.525	38.5	0.222			3.88		0.490	0.684	0.587

	Download Data	Period Mean (original grids) [Pg]	Model Period Mean (intersection) [Pg]	Model Period Mean (complement) [Pg]	Benchmark Period Mean (intersection) [Pg]	Benchmark Period Mean (complement) [Pg]		Bias [kg m-2]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	8.47
CRUJRA	[-]	3.62	3.60	0.0569	8.42	0.0520		-1.09		0.511	0.664	0.588
CRUNCEPv7	[-]	3.49	3.46	0.0505	8.42	0.0520		-1.12		0.507	0.698	0.603
GSWP3v1	[-]	3.04	3.04	0.0355	8.42	0.0520		-1.23		0.500	0.546	0.523
WATCH	[-]	3.35	3.33	0.0476	8.42	0.0520		-1.17		0.501	0.566	0.533

Africa - Central Africa - Sahel Africa - South Asia - East Siberia Asia - Indonesia Asia - North Central Asia - South Central Asia and China Asia - Southeast Asia and India Asia - West Siberia Australia Europe Globe Middle East and Sahara North America - Alaska and Northern Canada North America - Central America North America - Eastern United States North America - Southern Canada North America - Western United States South America - Amazon South America - Southeast South America - Southwest Temporally integrated period mean Temporally integrated period mean bias Temporally integrated period mean bias score

  Approach:

To convert the original data at 250m to the final one at 0.5x0.5 degree resolution, Please see conversion steps listed in http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/readme_biomass. 3 codes below will be used in these steps. Code 1: http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/read-NBCD2000.pro Code 2: http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/convert-NBCD2000.ncl Code 3: http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/write-NBCD2000.ncl First, I used Code 1 to read data at 250m from the original geotiff file

then I used Code 2 to convert unit from the orignal unit of ton C per hectare to the final one of Kg C per m2, meanwhile I summed all available data points at 250m in each 0.5x0.5 grid cell to obtain the data at 0.5x0.5 degree resolution

finally I used Code 3 to create the final file in netCDF format.

  Temporal resolution:

yearly

  General information:

This product was derived from National Biomass and Carbon Dataset for the year 2000 originally in a raster format at 250m.

  Spatial resolution:

0.5x0.5 degree

  Derived data code:

http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/read-NBCD2000.pro http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/convert-NBCD2000.ncl http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/write-NBCD2000.ncl