Using 5520 observatories covering the whole territory of
Spain (about 1 station per 90 km2 considering the whole period), a
daily gridded maximum and minimum temperature was built covering a period
from 1901 to 2014 in peninsular Spain and 1971 to 2014 in the Balearic and Canary
Islands. A comprehensive quality control was applied to the original data,
and the gaps were filled on each day and location independently. Using the
filled data series, a grid of 5 km × 5 km spatial resolution was created by
estimating daily temperatures and their corresponding uncertainties at each
grid point. Four daily temperature indices were calculated to describe the
spatial distribution of absolute maximum and minimum temperature, number of
frost days and number of summer days in Spain. The southern plateau showed
the maximum values of maximum absolute temperature and summer days, while
the minimum absolute temperature and frost days reached their maximums at
the northern plateau. The use of all the available information, the complete
quality control and the high spatial resolution of the grid allowed for an
accurate estimate of temperature that represents a precise spatial and
temporal distribution of daily temperatures in Spain. The STEAD dataset is
publicly available at https://doi.org/10.20350/digitalCSIC/8622 and can be
cited as Serrano-Notivoli et al. (2019)....

STEAD: a high-resolution daily gridded temperature dataset for Spain

10.5194/essd-11-1171-2019