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	[-]	61.5
000	[-]	66.4		4.86	15.4	1.41		0.487	0.279	0.785	0.558	0.477
001	[-]	66.3		4.76	15.4	1.41		0.485	0.278	0.786	0.557	0.477
002	[-]	66.1		4.63	15.5	1.42		0.482	0.278	0.783	0.555	0.475
003	[-]	66.0		4.45	15.5	1.44		0.477	0.277	0.780	0.552	0.472
004	[-]	65.9		4.37	15.5	1.45		0.477	0.276	0.779	0.549	0.471
005	[-]	65.9		4.35	15.6	1.46		0.476	0.275	0.779	0.547	0.471
006	[-]	65.8		4.32	15.6	1.48		0.475	0.274	0.774	0.546	0.468
007	[-]	66.4		4.85	15.4	1.41		0.487	0.278	0.785	0.558	0.477
008	[-]	66.4		4.87	15.4	1.40		0.487	0.279	0.787	0.559	0.478
009	[-]	66.3		4.82	15.4	1.43		0.485	0.278	0.779	0.558	0.476
010	[-]	66.4		4.90	15.4	1.43		0.486	0.279	0.780	0.560	0.477
011	[-]	66.5		4.96	15.4	1.42		0.487	0.280	0.782	0.562	0.478
012	[-]	66.5		4.99	15.4	1.42		0.486	0.280	0.782	0.564	0.479

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