Tropical Climates At The Last Glacial Maximum

The LGM Tropical Terrestrial Data Synthesis (Farrera et al., 1999) contains
quantitative reconstructions of mean temperature of the coldest month (MTCO)
and mean annual ground temperature (MAT), and qualitative reconstructions of
plant-available moisture (PAM) and runoff (equivalent to precipitation minus
evaptranspiration, P-E) from radiocarbon-dated terrestrial sites between 32° N
and 33° S with records for the last glacial maximum (defined as 18,000±1000 yr
B.P. on the radiocarbon time scale, equivalent to 21,000 yr B.P. on the
calendar time scale). The data set was explicitly compiled to provide an
evaluation data set for LGM simulations. The dataset combines multiple
indicators of quantitative changes in land surface temperature (pollen and
plant macrofossil records of mean temperature of the coldest month = MTCO, and
noble gas and speleothem records of mean annual temperature = MAT) and
qualitative indicators of moisture balance parameters (pollen and plant
macrofossil records of PAM and lake status records of P-E). The use of multiple
indicators allows the consistency of the temperature and moisture balance
reconstructions to be evaluated. The original publication lists all tropical
sites with climate estimates - many of these sites were unsuitable for making
quantitative reconstructions or were extremely poorly dated, and so do not
appear on the maps. The complete list of sites is available on request.

The LGM Tropical Terrestrial Data Synthesis has records for 85 sites with
records of PAM, 42 sites with records of P-E, 64 sites with record for
temperature at the site elevation, and 34 sites with records of temperature
reduced to sea level.