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1 2020

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Simulating Caspian Sea surface water level by artifcial neural network and support vector machine models

Khaledian M. R., Isazadeh M., Biazar S. M., Pham Q. B.

Acta Geophysica

2020

Vol. 68, no. 2

553--563

Reduction in sea water level can make services in nearshore structures difcult, and sea water level rise increases the risk to residential areas or the surrounding felds. For strategic planning, it is vital to take into account the present and future fuctuations of Caspian Sea water level. In this study, support vector machine and artifcial neural network are used to estimate water level of the Caspian Sea. A 34-year period dataset is used as input data for water level on the scale based at Anzali, Iran. Performances of these two models are compared according to some statistical indices. Results of this study indicate that support vector machine with an error of 4.782 mm and r=0.96 simulated the time series better, as compared with artifcial neural network with an error of 5.014 mm and r=0.957; furthermore, the uncertainty of this model is lower than that of the artifcial neural network, i.e., 0.04 verses 0.22.