1. Associate Technical Specialist, Dept. of Water Resources, New Taipei City Government, 29 F, No.161, Sec. 1, Zhongshan Rd., Banqiao District, New Taipei City 22001, Taiwan, Republic of China.
2. Professor, Dept. of Civil Engineering and Hydrotech Research Institute, National Taiwan Univ., No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan, Republic of China.
3. Associate Professor, Dept. of Civil Engineering, Chung Yuan Christian Univ., No. 200, Chung Pei Rd., Chung Li District, Taoyuan 32023, Taiwan, Republic of China (corresponding author).
4. Assistant Professor, Dept. of Civil Engineering, Chung Yuan Christian Univ., No. 200, Chung Pei Rd., Chung Li District, Taoyuan 32023, Taiwan, Republic of China.