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OROGRAPHIC INFLUENCE ON THE CENTRAL-NORTHERN ITALY CLIMATE FROM UNDERGROUND TEMPERATURES

In last decades, new studies on palaeoclimate, improved analysis of data sets, with a more rigorous evaluation of their quality, and comparisons among data from different sources have led to a better understanding of climate changes. As temperature changes at the surface affect the temperature distribution in the subsurface, ground temperatures are one of the most important archives of the past climate signal. Within the framework of an international research project, we have been working at the inference of the ground surface temperature (GST) history in northern-central Italy (Fig. 1). Our goal is collection, analysis and interpretation of geothermal data, relevant to understanding the nature and causes of climate change over the past three centuries, mainly constituted by temperature logs in drill-holes and laboratory measurements of rock thermophysical properties.