SPHERA High Resolution Reanalysis over Italy - Hourly surface air temperature (2-meter height) 2013-2020

SPHERA (High Resolution REAnalysis over Italy)  is a convection-permitting regional reanalysis developed by ARPAE-Emilia Romagna and publicly available. The SPHERA domain covers Italy and the surrounding seas with a horizontal resolution of 2.2km. The temporal coverage corresponds to the period 1995-2020 and the dataset is available at hourly frequency. SPHERA reanalysis was developed using the Numerical Weather Prediction model COSMO (www.cosmo-model.org) nested in the global reanalysis ERA5 produced by ECMWF. Moreover, upper-air and surface observations were assimilated at the convection-permitting scale by the COSMO nudging scheme. This record reports the hourly surface air temperature at 2-meter height for the period 2013-2020. The full extension of the dataset over 1995-2020 is available over three different records due to space constraints: 1995-2003: https://doi.org/10.5281/zenodo.10683302 2004-2012: https://doi.org/10.5281/zenodo.10684751 2013-2020: https://doi.org/10.5281/zenodo.10684938 Update (2024-06-28): inconsistencies were noted in a subset of grib messages contained the first version of the repository (slightly different spatial domain size and missing messages at 00-hour timesteps) which have been corrected in the current version v2. The hourly accumulated total precipitation field obtained with SPHERA is available at: https://doi.org/10.5281/zenodo.10441407 Details on the SPHERA dataset production, as well as data verification against surface observations are reported in peer-reviewed publications. See References.