1. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01002 (corresponding author).
2. Postdoctoral Researcher, Northeast Climate Science Center, Univ. of Massachusetts, Amherst, MA 01002.
3. Professor and Department Head, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01002.