Globe

	Download Data	Period Mean (original grids) [%]		Bias [%]	RMSE [%]	Phase Shift [months]		Bias Score [1]	RMSE Score [1]	Seasonal Cycle Score [1]	Interannual Variability Score [1]	Overall Score [1]
Benchmark	[-]	61.2
000	[-]	66.4		5.16	14.8	1.39		0.488	0.299	0.785	0.541	0.483
001	[-]	66.2		5.06	14.9	1.39		0.487	0.298	0.785	0.540	0.482
002	[-]	66.1		4.93	14.9	1.38		0.483	0.298	0.788	0.539	0.481
003	[-]	65.9		4.74	14.9	1.39		0.477	0.297	0.785	0.536	0.478
004	[-]	65.9		4.66	14.9	1.42		0.478	0.296	0.778	0.533	0.476
005	[-]	65.8		4.64	15.0	1.42		0.477	0.295	0.779	0.531	0.476
006	[-]	65.8		4.61	15.0	1.45		0.476	0.295	0.771	0.530	0.473
007	[-]	66.3		5.15	14.8	1.39		0.489	0.299	0.785	0.541	0.482
008	[-]	66.4		5.17	14.8	1.39		0.488	0.299	0.785	0.542	0.483
009	[-]	66.3		5.12	14.8	1.37		0.486	0.298	0.789	0.542	0.483
010	[-]	66.4		5.19	14.8	1.40		0.486	0.299	0.783	0.543	0.482
011	[-]	66.5		5.26	14.8	1.40		0.487	0.300	0.784	0.545	0.483
012	[-]	66.5		5.29	14.8	1.39		0.487	0.301	0.787	0.546	0.484

Globe Temporally integrated period mean Temporally integrated period mean bias Temporally integrated period mean bias score Temporally integrated period mean max month Temporally integrated mean phase shift Temporally integrated mean phase shift score Temporally integrated period mean rmse Temporally integrated period mean rmse score Interannual variability Interannual variability 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