Equatorial Africa Equatorial Asia Global - Land High Latitude South America - Amazon Temperate Latitudes

	Download Data	Period Mean (original grids) [Tg yr-1]	Model Period Mean (intersection) [Tg yr-1]	Benchmark Period Mean (intersection) [Tg yr-1]	Model Period Mean (complement) [Tg yr-1]	Benchmark Period Mean (complement) [Tg yr-1]		Bias [kg ha-1 yr-1]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	7.04
BGCv2LND.GSW	[-]	11.3	10.9	7.01	0.331	0.0237		4.06		0.495	0.934	0.714
BGCv2LNDATM	[-]	11.7	11.3	7.01	0.328	0.0237		4.43		0.463	0.928	0.696
MeanCMIP6	[-]	10.5	10.4	7.04	0.376			3.88		0.484	0.921	0.703
MIROC-ES2L	[-]	13.8	11.8	7.04	0.832	0.000471		5.52		0.468	0.913	0.691
UKESM1-0-LL	[-]	12.0	11.8	7.03	0.298	0.00402		5.35		0.333	0.540	0.436

	Download Data	Period Mean (original grids) [Tg yr-1]	Model Period Mean (intersection) [Tg yr-1]	Benchmark Period Mean (intersection) [Tg yr-1]	Model Period Mean (complement) [Tg yr-1]	Benchmark Period Mean (complement) [Tg yr-1]		Bias [kg ha-1 yr-1]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	2.23
BGCv2LND.GSW	[-]	6.34	3.80	2.17	2.54	0.0686		6.89		0.458	0.656	0.557
BGCv2LNDATM	[-]	6.20	3.76	2.17	2.44	0.0686		6.73		0.459	0.511	0.485
MeanCMIP6	[-]	4.58	3.02	2.23	1.63			8.18		0.418	0.729	0.573
MIROC-ES2L	[-]	5.66	2.54	2.22	2.87	0.0180		6.87		0.508	0.440	0.474
UKESM1-0-LL	[-]	6.81	4.51	2.20	2.28	0.0342		16.3		0.183	0.485	0.334

	Download Data	Period Mean (original grids) [Tg yr-1]	Model Period Mean (intersection) [Tg yr-1]	Benchmark Period Mean (intersection) [Tg yr-1]	Model Period Mean (complement) [Tg yr-1]	Benchmark Period Mean (complement) [Tg yr-1]		Bias [kg ha-1 yr-1]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	88.2
BGCv2LND.GSW	[-]	94.7	85.6	87.8	9.13	0.487		-0.175		0.531	0.845	0.688
BGCv2LNDATM	[-]	93.0	84.5	87.8	8.47	0.487		-0.260		0.510	0.835	0.672
MeanCMIP6	[-]	105.	97.0	88.3	8.15	0.0120		1.17		0.544	0.743	0.644
MIROC-ES2L	[-]	127.	113.	88.2	11.6	0.0366		2.48		0.521	0.356	0.438
UKESM1-0-LL	[-]	111.	102.	87.9	8.14	0.320		1.68		0.450	0.652	0.551

	Download Data	Period Mean (original grids) [Tg yr-1]	Model Period Mean (intersection) [Tg yr-1]	Benchmark Period Mean (intersection) [Tg yr-1]	Model Period Mean (complement) [Tg yr-1]	Benchmark Period Mean (complement) [Tg yr-1]		Bias [kg ha-1 yr-1]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	18.2
BGCv2LND.GSW	[-]	15.2	13.9	18.4	1.23	0.179		-1.62		0.617	0.573	0.595
BGCv2LNDATM	[-]	13.2	12.1	18.4	1.09	0.179		-2.30		0.593	0.576	0.585
MeanCMIP6	[-]	13.6	12.5	18.6	1.15	0.00255		-2.03		0.614	0.626	0.620
MIROC-ES2L	[-]	14.5	12.9	18.2	1.52	0.00401		-1.73		0.635	0.803	0.719
UKESM1-0-LL	[-]	16.6	15.3	18.5	1.30	0.0874		-0.909		0.587	0.803	0.695

	Download Data	Period Mean (original grids) [Tg yr-1]	Model Period Mean (intersection) [Tg yr-1]	Benchmark Period Mean (intersection) [Tg yr-1]	Model Period Mean (complement) [Tg yr-1]	Benchmark Period Mean (complement) [Tg yr-1]		Bias [kg ha-1 yr-1]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	6.52
BGCv2LND.GSW	[-]	13.3	12.7	6.60	0.632	0.00954		7.54		0.419	0.858	0.638
BGCv2LNDATM	[-]	13.3	12.7	6.60	0.602	0.00954		7.55		0.417	0.908	0.662
MeanCMIP6	[-]	13.5	13.1	6.60	0.439			8.37		0.394	0.964	0.679
MIROC-ES2L	[-]	11.5	10.3	6.54	0.601	0.000770		5.04		0.577	0.962	0.769
UKESM1-0-LL	[-]	16.2	15.7	6.53	0.397	0.00600		11.8		0.295	0.694	0.495

	Download Data	Period Mean (original grids) [Tg yr-1]	Model Period Mean (intersection) [Tg yr-1]	Benchmark Period Mean (intersection) [Tg yr-1]	Model Period Mean (complement) [Tg yr-1]	Benchmark Period Mean (complement) [Tg yr-1]		Bias [kg ha-1 yr-1]		Bias Score [1]	Spatial Distribution Score [1]	Overall Score [1]
Benchmark	[-]	38.2
BGCv2LND.GSW	[-]	24.9	22.8	38.2	2.16	0.189		-3.32		0.580	0.647	0.614
BGCv2LNDATM	[-]	22.9	20.9	38.2	1.91	0.189		-3.72		0.566	0.593	0.579
MeanCMIP6	[-]	32.1	29.6	38.3	2.44	0.00255		-1.59		0.578	0.821	0.699
MIROC-ES2L	[-]	46.6	44.0	38.0	4.57	0.0148		1.61		0.542	0.234	0.388
UKESM1-0-LL	[-]	30.5	28.0	38.4	2.39	0.130		-1.88		0.567	0.835	0.701

Equatorial Africa Equatorial Asia Global - Land High Latitude South America - Amazon Temperate Latitudes Temporally integrated period mean Temporally integrated period mean bias Temporally integrated period mean bias score

  Title:

Biological Nitrogen Fixation

  Version:

1

  Institutions:

University of Exeter

  Source:

A comprehensive global meta analysis of field measurements

  History:

2020-12-14: obtained dataset 2020-12-14: converted to netCDF

  References:

Davies-Barnard, T. and Friedlingstein, P. (2020), The Global Distribution of Biological Nitrogen Fixation in Terrestrial Natural Ecosystems, Global Biogeochemical Cycles, 3, doi:10.1029/2019GB006387

  Comments:

time_period: single estimate from 1980 through 2019

temporal_resolution: monthly

spatial_resolution: 0.5 degree

units: kg m-2 s-1

  Convention:

CF-1.8