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	[-]	77.7
CON	[-]	69.8	69.5		77.7	77.8		-7.22	13.5	1.72		0.351	0.234	0.765	0.997	0.476	0.509
OP	[-]	70.0	69.6		77.7	77.8		-7.06	13.4	1.72		0.354	0.234	0.765	0.997	0.477	0.510

	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	[-]	53.0
CON	[-]	50.1	50.5		52.9	80.7		-2.06	11.7	0.547		0.734	0.586	0.928	0.981	0.831	0.774
OP	[-]	50.1	50.5		52.9	80.7		-2.03	11.7	0.547		0.735	0.586	0.928	0.981	0.831	0.774

	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	[-]	64.2
CON	[-]	61.9	61.9		63.8	77.8		-0.481	12.1	1.33		0.584	0.420	0.812	0.963	0.732	0.655
OP	[-]	62.0	62.0		63.8	77.8		-0.417	12.1	1.32		0.584	0.420	0.813	0.963	0.732	0.655

	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
CON	[-]	88.6	88.5		77.4	83.2		11.3	17.5	2.60		0.126	0.0788	0.583	0.745	0.474	0.348
OP	[-]	88.7	88.6		77.4	83.2		11.4	17.5	2.76		0.124	0.0799	0.552	0.735	0.477	0.341

	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	[-]	84.0
CON	[-]	85.4	85.5		84.3	81.2		-0.280	5.65	1.32		0.567	0.198	0.802	0.997	0.415	0.530
OP	[-]	85.5	85.7		84.3	81.2		-0.107	5.63	1.29		0.568	0.199	0.810	0.998	0.417	0.532

	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	[-]	72.2
CON	[-]	82.5	82.5		72.2	82.1		10.4	17.9	2.12		0.325	0.200	0.691	0.981	0.506	0.484
OP	[-]	82.6	82.6		72.2	82.1		10.5	17.9	2.14		0.321	0.201	0.689	0.982	0.508	0.484

	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	[-]	61.1
CON	[-]	65.0	65.2		61.0	75.3		4.94	16.3	1.90		0.535	0.319	0.715	0.994	0.715	0.599
OP	[-]	65.1	65.2		61.0	75.3		4.99	16.3	1.90		0.533	0.319	0.715	0.994	0.716	0.599

	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
CON	[-]	62.2	61.5		69.1	79.0		-4.39	11.9	0.951		0.580	0.368	0.870	0.935	0.585	0.618
OP	[-]	62.3	61.5		69.1	79.0		-4.29	11.9	0.959		0.582	0.369	0.867	0.934	0.586	0.618

	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	[-]	78.8
CON	[-]	89.0	88.8		78.7	84.9		10.2	16.1	2.65		0.163	0.100	0.584	0.831	0.427	0.368
OP	[-]	89.1	88.9		78.7	84.9		10.3	16.1	2.79		0.160	0.102	0.559	0.825	0.431	0.363

	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
CON	[-]	50.1	49.9		52.3	74.2		1.18	7.59	0.547		0.698	0.479	0.901	0.995	0.757	0.718
OP	[-]	50.2	50.0		52.3	74.2		1.23	7.60	0.547		0.697	0.480	0.901	0.995	0.757	0.718

	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	[-]	76.4
CON	[-]	77.4	77.3		76.4	81.1		0.682	9.45	1.09		0.610	0.291	0.847	0.808	0.553	0.567
OP	[-]	77.5	77.3		76.4	81.1		0.743	9.44	1.09		0.610	0.292	0.846	0.808	0.554	0.567

	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
CON	[-]	69.7	69.7		66.3	79.5		5.15	13.8	1.56		0.413	0.280	0.754	0.955	0.573	0.543
OP	[-]	69.8	69.8		66.3	79.5		5.22	13.8	1.57		0.413	0.281	0.752	0.955	0.574	0.543

	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	[-]	37.7
CON	[-]	41.7	41.5		37.4	72.3		6.62	12.8	0.752		0.473	0.406	0.866	0.938	0.707	0.633
OP	[-]	41.7	41.6		37.4	72.3		6.64	12.8	0.763		0.473	0.407	0.863	0.939	0.707	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	[-]	77.9
CON	[-]	88.5	88.4		77.8	83.1		11.1	17.0	2.47		0.164	0.122	0.622	1.00	0.526	0.426
OP	[-]	88.5	88.5		77.8	83.1		11.2	17.0	2.47		0.163	0.122	0.622	0.999	0.527	0.426

	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
CON	[-]	67.1	66.7		68.8	79.3		0.809	10.0	1.79		0.476	0.285	0.715	0.980	0.551	0.549
OP	[-]	67.2	66.8		68.8	79.3		0.896	10.0	1.79		0.477	0.285	0.715	0.981	0.551	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	[-]	69.8
CON	[-]	76.2	76.2		69.7	76.3		6.38	11.6	2.55		0.385	0.237	0.600	0.990	0.620	0.512
OP	[-]	76.3	76.3		69.7	76.3		6.45	11.7	2.55		0.382	0.238	0.602	0.991	0.622	0.512

	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	[-]	72.5
CON	[-]	81.9	81.8		72.4	82.1		9.61	15.1	1.46		0.313	0.229	0.811	0.965	0.605	0.525
OP	[-]	82.0	81.9		72.4	82.1		9.72	15.2	1.47		0.309	0.230	0.809	0.965	0.606	0.525

	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	[-]	53.0
CON	[-]	63.6	63.5		52.9	76.9		11.0	16.1	1.29		0.411	0.404	0.838	0.966	0.737	0.627
OP	[-]	63.6	63.5		52.9	76.9		11.1	16.1	1.29		0.410	0.404	0.838	0.967	0.737	0.627

	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
CON	[-]	80.0	80.2		84.8	81.3		-4.52	10.9	1.27		0.439	0.241	0.835	0.918	0.469	0.524
OP	[-]	80.2	80.4		84.8	81.3		-4.32	10.8	1.27		0.446	0.242	0.835	0.920	0.471	0.526

	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	[-]	70.2
CON	[-]	72.0	71.9		70.0	79.0		2.33	13.1	1.35		0.447	0.326	0.819	0.760	0.713	0.565
OP	[-]	72.1	71.9		70.0	79.0		2.40	13.1	1.35		0.446	0.327	0.819	0.760	0.714	0.565

	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	[-]	65.1
CON	[-]	63.7	63.0		64.3	83.6		0.691	13.3	0.976		0.434	0.335	0.853	0.966	0.575	0.583
OP	[-]	63.8	63.1		64.3	83.6		0.751	13.3	0.985		0.434	0.335	0.852	0.966	0.575	0.583

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