1. Member, ASCE
2. Prof. of Water Engrg., Dept. of Civ. Engrg., Univ. of Glasgow, Glasgow G12 8LT, U.K.
3. Postdoctoral Res. Asst., Dept. of Civ. Engrg., Univ. of Glasgow, Glasgow G12 8LT, U.K.
4. Emeritus Prof. of Hydr. Engrg., Dept. of Civ. Engrg., Univ. of Bristol, Bristol BS8 1TR, U.K.