Evaluation of Satellite Precipitation Products and Their Potential Influence on Hydrological Modeling over the Ganzi River Basin of the Tibetan Plateau

Table 3

Calibration parameters for hydrologic simulation of HEC-HMS model.

Parameters	Physical meaning	Lower bound	Upper bound	Model component
	Initial deficit, mm	0	100	Precipitation excess
	Maximum deficit, mm	0	250
	Constant rate, mm/hr	0	150
	Time of concentration, hr	24	72	Surface flow
	Storage coefficient, hr	10	100
	Recession constant, dimensionless	0.50	1	Subsurface flow
	Ratio to peak, dimensionless	0	1
	Muskingum travel time, hr	24	150	Reaches flow
	Muskingum weighting factor, dimensionless	0.01	0.2
	Wet melt rate, mm/°c-day	0	10	Snowmelt flow
	Rain rate limit, mm/day	0	600
	Melt rate antecedent temperature index coefficient, dimensionless	0	1
	Cold content antecedent temperature index coefficient, dimensionless	0	1