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

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	78.2
Calib	[-]	72.2	70.5		78.2	82.3		-7.70	14.4	1.91		0.292	0.243	0.715	0.995	0.529	0.503
Control	[-]	71.4	69.7		78.2	82.3		-8.50	15.0	1.93		0.284	0.237	0.716	0.994	0.522	0.498

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	52.7
Calib	[-]	47.0	48.3		52.6	77.0		-4.29	13.3	0.628		0.630	0.581	0.902	0.970	0.795	0.743
Control	[-]	46.5	47.8		52.6	77.0		-4.81	13.5	0.648		0.624	0.579	0.900	0.967	0.794	0.741

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	65.5
Calib	[-]	64.2	64.0		65.3	75.4		-1.25	11.7	1.43		0.568	0.461	0.792	0.971	0.760	0.669
Control	[-]	63.7	63.5		65.3	75.4		-1.77	11.8	1.35		0.565	0.459	0.808	0.972	0.761	0.671

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	77.7
Calib	[-]	89.2	88.9		77.8	79.8		11.1	17.2	4.28		0.127	0.0884	0.260	0.848	0.771	0.364
Control	[-]	89.1	88.8		77.8	79.8		11.0	17.2	3.59		0.128	0.0877	0.383	0.850	0.762	0.383

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	83.2
Calib	[-]	84.3	84.0		83.5	80.1		0.453	4.36	1.73		0.493	0.390	0.732	0.998	0.709	0.619
Control	[-]	83.7	83.4		83.5	80.1		-0.182	4.40	1.91		0.478	0.387	0.698	0.998	0.706	0.609

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	72.3
Calib	[-]	83.6	82.8		72.2	77.9		10.5	17.6	2.14		0.317	0.213	0.700	0.999	0.808	0.542
Control	[-]	83.8	82.9		72.2	77.9		10.7	17.7	2.00		0.311	0.214	0.722	0.998	0.796	0.542

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	61.6
Calib	[-]	65.8	65.4		61.2	73.6		4.12	15.9	1.84		0.524	0.343	0.710	0.991	0.787	0.616
Control	[-]	65.4	65.0		61.2	73.6		3.78	16.1	1.82		0.522	0.339	0.711	0.989	0.785	0.614

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	68.8
Calib	[-]	64.4	64.4		68.7	78.9		-4.33	12.1	1.10		0.537	0.393	0.845	0.958	0.710	0.639
Control	[-]	63.5	63.5		68.7	78.9		-5.18	12.5	1.10		0.513	0.391	0.845	0.954	0.703	0.633

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	78.7
Calib	[-]	89.6	89.3		78.6	84.5		10.7	16.1	3.70		0.160	0.122	0.387	0.929	0.821	0.424
Control	[-]	89.5	89.2		78.6	84.5		10.6	16.2	3.64		0.160	0.122	0.391	0.923	0.818	0.422

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	53.1
Calib	[-]	54.7	53.8		52.4	73.3		1.36	8.38	0.852		0.616	0.512	0.858	0.995	0.773	0.711
Control	[-]	54.3	53.4		52.4	73.3		0.974	8.33	0.852		0.620	0.512	0.858	0.996	0.774	0.712

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	76.3
Calib	[-]	77.2	77.1		76.4	75.3		0.773	8.49	1.84		0.634	0.368	0.740	0.834	0.764	0.618
Control	[-]	77.1	77.1		76.4	75.3		0.698	8.62	1.76		0.624	0.367	0.755	0.808	0.764	0.614

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	74.8
Calib	[-]	72.2	72.2		67.6	79.5		4.56	13.0	1.81		0.398	0.337	0.705	0.953	0.730	0.577
Control	[-]	71.9	71.9		67.6	79.5		4.26	13.1	1.79		0.395	0.335	0.709	0.949	0.728	0.575

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	36.8
Calib	[-]	43.6	42.6		36.0	71.3		6.60	13.3	0.838		0.416	0.434	0.843	0.938	0.711	0.630
Control	[-]	43.2	42.2		36.0	71.3		6.26	13.1	0.834		0.419	0.437	0.844	0.938	0.715	0.632

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	78.2
Calib	[-]	89.5	89.3		78.1	82.4		11.2	16.6	2.87		0.178	0.152	0.549	0.970	0.792	0.465
Control	[-]	89.4	89.2		78.1	82.4		11.1	16.6	2.76		0.181	0.150	0.572	0.971	0.789	0.469

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	69.3
Calib	[-]	70.7	70.4		68.8	75.2		1.59	9.69	2.08		0.459	0.347	0.657	0.952	0.733	0.582
Control	[-]	70.1	69.9		68.8	75.2		1.01	9.74	2.07		0.445	0.345	0.660	0.954	0.732	0.580

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	71.1
Calib	[-]	76.8	76.1		71.1			4.99	10.3	2.18		0.397	0.260	0.657	0.979	0.727	0.546
Control	[-]	76.5	75.9		71.1			4.72	10.2	2.18		0.411	0.258	0.657	0.984	0.726	0.549

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	72.6
Calib	[-]	80.1	80.6		72.6	82.3		8.00	14.5	1.70		0.378	0.241	0.785	0.998	0.818	0.577
Control	[-]	80.3	80.8		72.6	82.3		8.24	14.7	1.67		0.364	0.241	0.787	0.998	0.815	0.574

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	53.2
Calib	[-]	62.1	62.9		53.2			9.71	15.5	1.28		0.455	0.421	0.827	0.889	0.803	0.636
Control	[-]	61.8	62.7		53.2			9.46	15.4	1.24		0.461	0.416	0.830	0.903	0.800	0.638

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	84.8
Calib	[-]	80.9	80.7		84.9	81.2		-4.16	10.3	1.31		0.396	0.304	0.840	0.940	0.594	0.563
Control	[-]	80.2	80.0		84.9	81.2		-4.81	10.6	1.32		0.376	0.299	0.840	0.933	0.586	0.556

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	69.8
Calib	[-]	73.3	73.1		69.8	74.2		3.33	12.9	1.21		0.437	0.370	0.842	0.846	0.705	0.595
Control	[-]	72.8	72.6		69.8	74.2		2.78	12.8	1.14		0.438	0.367	0.848	0.843	0.702	0.594

	Download Data	Period Mean (original grids) [%]	Model Period Mean (intersection) [%]	Model Period Mean (complement) [%]	Benchmark Period Mean (intersection) [%]	Benchmark Period Mean (complement) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Spatial Distribution Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	66.3
Calib	[-]	65.7	64.8		66.0	81.1		-1.20	15.5	1.39		0.356	0.378	0.806	0.967	0.679	0.594
Control	[-]	65.4	64.5		66.0	81.1		-1.54	15.5	1.42		0.356	0.376	0.799	0.969	0.679	0.593

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 max month Temporally integrated mean phase shift Temporally integrated mean phase shift score Interannual variability Interannual variability score Temporally integrated period mean bias Temporally integrated period mean bias score Temporally integrated period mean rmse Temporally integrated period mean rmse score Spatially integrated regional mean cycle Spatially integrated regional mean detrended cycle Spatially integrated regional mean

  Title:

derived ERA interim

  Source_file:

This product is generated from monthly ERA interim observations

  Conventions:

Please contact Prof. James Randerson (Email: jranders@uci.edu) or Dr. Mingquan Mu (mmu@uci.edu) for any question

  Creation_date:

Wed Dec 2 12:03:21 PST 2015

  Approach:

I read the monthly 2m dewpoint temperature and 2m surface air temperature from original file, and calculated 2m relative humidity using the way by John Dutton (Ceaseless Wind, John Dutton. McGraw-Hill, 1976. pp 273-274). The final data were saved by each month and each year.

  Temporal resolution:

monthly

  General information:

This product was derived from ERA interim Dataset (1979-present).

  Spatial resolution:

0.5x0.5, 1x1 and 2.5x2.5 degree

  Derived data code:

http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/convert-rhums-ERA-interim.ncl