An Efficient Prediction Model for Water Discharge in Schoharie Creek, NY

Table 2

Periods derived by the graph of periodograms of the water discharge variable and the climatic variables.

Variable	Period (days)
	First peak of period	Second peak of period	Third peak of period
Water discharge	365	594
Groundwater level	365	991	198
Tide	365	185	14
Precipitation	27	7	4
Wind speed	365
Temperature	365