Optimum row (1=S tip of US, 277=N tip of US, click on help above for map) and potential movement, in km of the latitudinal optimum for yellow-poplar

FIA-Optimum	120
PRD-Optimum	120
GISS-Optimum	122
GISS-Movement	20N
GFDL-Optimum	122
GFDL-Movement	20N
HAD-Optimum	144
HAD-Movement	240N
UKMO-Optimum	137
UKMO-Movement	170N
CCC-Optimum	142
CCC-Movement	220N