Ground Surface Temperature History Since the Last Glacial Maximum in Northeast Asia: Reconstructions From the Borehole Geotherms of the International Continental Scientific Drilling Program

Abstract Past ground surface temperature (GST), one of the important aspects paleoclimate reconstructions, can be inverted from borehole measurements. Here, we report continuous 6,100‐m logs in International Continental Scientific Drilling Program SK‐2e. We past GST changes upper logging (<600 m). Below this depth, localized fluid flow masks record. Inversions yield an approximately 2 K rise since 0.1–0.6 Kyr BP and 10 20 BP. Assuming a ±5 influence deep groundwater flow, has varied between 8 12 BP, which is consistent with previous reports Last Glacial Maximum. Our results emphasize potential heat‐flow profiles as record climate importance correction for determinations.