1. Department of Civil and Environmental Engineering; Pennsylvania State University; University Park Pennsylvania USA
2. Division of Earth and Ocean Sciences; Nicholas School of the Environment; Duke University, Durham North Carolina USA
3. Department of Civil Engineering; University of Bristol; Bristol UK
4. Department of Earth and Environmental Science; University of Iowa; Iowa City Iowa USA
5. Department of Civil and Environmental Engineering; Colorado State University; Fort Collins Colorado USA
6. Department of Land Resources and Environmental Sciences; Montana State University; Bozeman Montana USA