1. Ph.D. Candidate, Water Resources Graduate Program, United Arab Emirates Univ., Al Ain 15551, UAE.
2. Associate Professor, Civil and Environmental Engineering Dept., United Arab Emirates Univ., Al Maqam 15551, UAE (corresponding author).
3. Utilities Engineer, Fluor Mideast Limited, Abu Dhabi 46858, UAE.
4. Assistant Professor, Dept. of Atmospheric Sciences, Univ. of Arizona, Tucson, AZ 85721-0081.