The consistency of land-based and ocean-based Last Glacial Maximum (LGM) proxy evidence on and near South America is evaluated by utilizing a regional climate model (RCM). The relatively high resolution of the RCM brings model output closer to the spatial scales of the geological reconstructions. This is important because proxy sites only a few tens of kilometers apart can yield markedly different interpretations of LGM climate. Along with differences in orbital parameters, CO 2 concentrations, and vegeta…
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