Runoff simulation using Xin'anjiang-Haihe model in the typical basins of Yantai city
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Abstract:
To establish a hydrological model suitable for the sub-humid area of Yantai city, the Xincanjiang-Haihe model was used to simulate the runoff in the five typical basins in Yantai city from 2011 to 2018. Since 2014, Yantai city has been dry for three consecutive years, the river has dried up, and the runoff has decreased significantly compared with that before 2014. Considering the influence of drought , the Mann-Kendal test is used to test the abrupt change of annual runoff sequence, and 2014 is determined as the abrupt change point of annual runoff. The simulation sequence is divided into two time periods and is simulated in segments. T he results sho wed that: after subsection simulation o f the runoff process, the runoff simulation accuracy of the X inc anjiang-Haihe model in the typical basin of Yantai city is higher, and the parameters are more reasonable. The Xin’anjiang-Haihe model can reflect the actual production confluence and has good applicability.
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