Evaluating the Performance of Secondary Precipitation Products through Statistical and Hydrological Modeling in a Mountainous Tropical Basin of India

Table 4

Statistical coefficient values for monthly runoff.

Precipitation dataset	R^2		N-S		PBias
	Calibration (2002–2008)	Validation (2009–2012)	Calibration	Validation	Calibration	Validation
Gauge-based
IMD	0.72	0.71	0.6	0.65	−4.2	20.2
APHRODITE	0.63	0.79	0.51	0.77	30.6	−3.5
Satellite-only
SM2RAIN-CCI	0.48	0.4	0.18	0.16	58	57.8
Reanalysis products
CHIRP v2.0	0.80	0.81	0.80	0.8	0.3	−9.7
GSMAP_Gauge_RNL v6	0.74	0.82	0.74	0.78	0.9	−17.5
CHIRPS 0.05° v2.0	0.73	0.83	0.73	0.75	0.3	−19.8
PGF 0.25 v2	0.66	0.82	0.63	0.8	11.7	11.8
PGF 0.5 v2	0.63	0.76	0.55	0.68	27	23.1
MSWEP v1.2	0.62	0.72	0.55	0.68	25.3	10.5
CHIRPS 0.25° v2.0	0.61	0.7	0.61	0.68	2.3	−7.1
NCEP-CFSR	0.61	0.61	0.52	0.6	−30	−1.3
Gauge-adjusted
TRMM 3B42 v7	0.81	0.88	0.81	0.85	7.1	−12.1
GPCC v.2018	0.7	0.86	0.68	0.86	−5.6	1.8
GPCC v.7	0.73	0.83	0.7	0.77	−9	−27.4
PERSIANN-CDR	0.60	0.65	0.52	0.62	30.1	22.4
GPCP-CDR v1.3	0.38	0.67	0.35	0.63	22.7	14.2