1. Department of Geological Sciences; California State University, Fullerton; Fullerton CA USA
2. Lamont-Doherty Earth Observatory of Columbia University; Palisades NY USA
3. Department of Earth Sciences; Syracuse University; Syracuse NY USA
4. Department of Mathematics; California State University, Fullerton; Fullerton CA USA
5. Department of Environmental Sciences; University of California Riverside; Riverside CA USA
6. Quaternary Research Center and Department of Earth and Space Sciences; University of Washington; Seattle WA USA
7. Geography; University of Sheffield; Sheffield UK
8. Climate Change Institute; University of Maine; Orono ME USA