Evaluation of Three Satellite Precipitation Products TRMM 3B42, CMORPH, and PERSIANN over a Subtropical Watershed in China

Table 1

The statistics of the errors of maximum daily and 5-day satellite precipitation during the nine-year period. The “relative (%)” in the table is equal to absolute error divided by the corresponding precipitation of the rain gauge data.

Index	Product	Minimum error		Maximum error		Average error
		Absolute (mm)	Relative (%)	Absolute (mm)	Relative (%)	Absolute (mm)	Relative (%)
Max. daily precipitation	TRMM 3B42	2.13	2.29	29.75	32.92	13.31	15.41
	CMORPH	0.38	0.46	39.78	42.74	17.05	19.74
	PERSIANN	7.94	9.58	55.99	99.65	30.46	35.27
Max. 5-day precipitation	TRMM 3B42	4.58	3.64	123.94	34.34	43.01	22.97
	CMORPH	4.74	1.84	160.56	44.48	39.83	21.28
	PERSIANN	6.08	5.24	167.83	46.5	58.59	31.3