These files contain the climate-dissimilarity results reported in Williams et al. 2007, PNAS.
The following runs are stored here:
“Novel” climates
Dissimilarities between each 21st-century target gridcell and its closest 20th-century analogue. These results are shown in Panels 2C and 2D of Williams et al. 2007.
“Local” climate change
Dissimilarities calculated between the late 20th century and late 21st-century climate for each gridcell. These results are shown in Panels 2A and 2B of Williams et al. 2007.
“Disappearing” climates
Dissimilarities between each 20th-century target gridcell and its closest 21st-century analogue. These results are shown in panels 2E and 2F of Williams et al. 2007.
Same as “novel” climates, except that a 500-kilometer constraint was placed on the search for analogues
High SED values indicate novel climates within this search radius. These results are shown in in Panels 3A and 3B of Williams et al. 2007.
Same as “disappearing” climates, except that a 500-kilometer constraint was placed on the search for analogues
High SED values indicate disappearing climates within this search radius. These results are shown in in Panels 3C and 3D of Williams et al. 2007.
References
Williams, J.W., Jackson, S., and Kutzbach, J. (2007). Projected distributions of novel and disappearing climates by 2100 AD. Proceedings of the National Academy of Science 104: 5738-5742. (PDF)
Contact: Jack Williams, jww@geography.wisc.edu