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 Global - Land 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

	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	[-]	3.47
CESM3_092H	[-]	2.40	2.52	3.54	0.0572			-1.98		0.730	0.769	0.750
LE2_001	[-]	2.36	2.50	3.53	0.0452	0.00901		-2.06		0.737	0.747	0.742

	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	[-]	5.23
CESM3_092H	[-]	3.14	2.89	5.20	0.0138	0.000959		-3.44		0.397	0.163	0.280
LE2_001	[-]	2.63	2.42	5.19	0.0116	0.00842		-4.20		0.424	0.268	0.346

	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	[-]	4.53
CESM3_092H	[-]	3.71	3.50	4.47	0.219	0.000112		-0.965		0.440	0.330	0.385
LE2_001	[-]	4.04	3.82	4.46	0.223	0.00711		-0.620		0.462	0.373	0.417

	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	[-]	1.06
CESM3_092H	[-]	0.444	0.412	1.08	0.0316			-2.11		0.574	0.129	0.352
LE2_001	[-]	0.341	0.320	1.08	0.0208	0.00346		-2.48		0.514	0.137	0.326

	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	[-]	2.20
CESM3_092H	[-]	1.95	1.39	2.21	0.554	0.00166		-1.49		0.842	0.532	0.687
LE2_001	[-]	1.81	1.34	2.13	0.473	0.0783		-1.82		0.814	0.636	0.725

	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	[-]	6.28
CESM3_092H	[-]	2.38	2.25	6.41	0.0638			-4.74		0.545	0.0628	0.304
LE2_001	[-]	2.02	1.90	6.40	0.0576	0.00484		-5.16		0.530	0.0694	0.300

	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	[-]	17.5
CESM3_092H	[-]	4.82	4.63	17.4	0.209			-7.09		0.495	0.229	0.362
LE2_001	[-]	4.52	4.34	17.4	0.189	0.00434		-7.28		0.477	0.189	0.333

	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	[-]	6.61
CESM3_092H	[-]	2.93	2.62	6.60	0.304	0.000314		-5.63		0.590	0.555	0.572
LE2_001	[-]	2.82	2.53	6.56	0.285	0.0366		-5.82		0.578	0.534	0.556

	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	[-]	1.30
CESM3_092H	[-]	0.513	0.483	1.35	0.0347			-2.73		0.574	0.0727	0.323
LE2_001	[-]	0.346	0.326	1.34	0.0232	0.00149		-3.27		0.492	0.0583	0.275

	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	[-]	3.77
CESM3_092H	[-]	2.57	2.31	3.77	0.264	0.00216		-1.68		0.653	0.314	0.483
LE2_001	[-]	2.22	1.96	3.75	0.261	0.0207		-2.15		0.607	0.302	0.455

	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	[-]	4.91
CESM3_092H	[-]	1.45	1.26	4.89	0.165	0.00238		-7.26		0.501	0.106	0.303
LE2_001	[-]	1.30	1.16	4.87	0.137	0.0261		-7.56		0.488	0.115	0.302

	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
CESM3_092H	[-]	44.1	40.9	88.2	3.04	0.00803		-3.51		0.559	0.407	0.483
LE2_001	[-]	40.9	38.2	88.0	2.66	0.278		-3.76		0.552	0.424	0.488

	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	[-]	3.41
CESM3_092H	[-]	1.66	1.57	3.41	0.0868			-1.08		0.649	0.122	0.386
LE2_001	[-]	1.34	1.28	3.39	0.0772	0.0114		-1.28		0.663	0.103	0.383

	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	[-]	3.56
CESM3_092H	[-]	0.869	0.737	3.61	0.120			-5.28		0.526	0.0511	0.289
LE2_001	[-]	0.694	0.595	3.60	0.0888	0.0111		-5.58		0.488	0.0421	0.265

	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	[-]	1.98
CESM3_092H	[-]	1.34	1.05	1.98	0.264	0.000448		-2.79		0.689	0.511	0.600
LE2_001	[-]	1.25	1.01	1.95	0.228	0.0290		-3.01		0.691	0.602	0.646

	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	[-]	4.09
CESM3_092H	[-]	1.64	1.48	4.06	0.114			-6.79		0.560	0.381	0.470
LE2_001	[-]	1.48	1.35	4.06	0.0897	0.00206		-7.18		0.537	0.384	0.461

	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	[-]	2.46
CESM3_092H	[-]	1.37	1.25	2.49	0.127			-2.53		0.540	0.0476	0.294
LE2_001	[-]	1.14	1.05	2.49	0.0904	0.00374		-2.99		0.597	0.0431	0.320

	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	[-]	3.85
CESM3_092H	[-]	1.01	1.05	3.82	0.00762			-6.94		0.510	0.0495	0.280
LE2_001	[-]	0.862	0.897	3.81	0.00478	0.00396		-7.33		0.516	0.0386	0.277

	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
CESM3_092H	[-]	5.71	5.49	6.58	0.182			-1.26		0.714	0.410	0.562
LE2_001	[-]	5.90	5.68	6.58	0.187	0.000106		-1.02		0.728	0.281	0.504

	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	[-]	3.44
CESM3_092H	[-]	3.16	3.07	3.43	0.123			-0.481		0.296	0.0929	0.194
LE2_001	[-]	2.96	2.89	3.42	0.106	0.00578		-0.751		0.283	0.0991	0.191

	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	[-]	1.80
CESM3_092H	[-]	1.02	0.953	1.75	0.0702	4.31e-06		-2.33		0.644	0.311	0.478
LE2_001	[-]	0.866	0.829	1.74	0.0417	0.0104		-2.76		0.637	0.318	0.478

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 Global - Land 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

  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