A Metrological Assessment of Precision and Accuracy of Earth’s Global Mean Surface Temperature Parameter and Some Consequences

Abstract

The studies on climate change are currently conducted over a specific period of time extending back to the industrial era from 1850 onwards and are intended to comprise the entire Earth’s surface. In order to obtain the most recent numerical values of the parameters of interest, they are supplied by Climate Science and, in particular, by Meteorology Organizations. The paper aims to attempt to perform a strict and full metrological analysis concerning the specific parameter of Earth’s Global Mean Surface Temperature (GMST), considered among the most important ones, as climate behavior is critically dependent on ground temperature. Information on it looks almost invariably to be provided by non-metrological Institutions in their published analyses on climate. In many respects, that is a reason for having failed, as the author suspects, to provide a full and comprehensive discussion on the observation’s outcoming from the metro Stations (see next Section), their physical bases being instead considered of more interest— and possibly the main competence/interest of most authors in analyzing the observed values.