This repository includes 15 datasets of mean daily air temperature obtained from 94 meteorological stations located in Portugal mainland (SNIRH, 2022) and the corresponding datasets from the ERA5-Land reanalysis (Muñoz Sabater 2019; Muñoz Sabater 2021). These datasets were considered for the development the following study: Almeida, M.C. and Coelho P.S., 2023: A first assessment of ERA5-Land reanalysis air temperature over Portugal mainland. The ERA5-Land datasets were corrected with 15 different lapse rates, ranging from 0 ºC to 7ºC (0.5 ºC step) to adjust air temperature for the altitudes differences. Considering the results obtained, a LR value of -2.0 ºC/1000 m was the final choice to evaluate the ERA5-L datasets accuracy.
SNIRH, 2022: Water Resources Information System, accessed 25 October 2022, https://snirh.apambiente.pt/.
Muñoz-Sabater, J., 2019: ERA5-Land hourly data from 1981 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS), accessed 14 December 2022), doi:10.24381/cds.e2161bac.
Muñoz-Sabater, J., 2021: ERA5-Land hourly data from 1950 to 1980. Copernicus Climate Change Service (C3S) Climate Data Store (CDS), accessed 14 December 2022, doi:10.24381/cds.e2161bac.