Development of hight resolution gridded datasets of monthly temperature since 1916 for Spain

This article describes the methodology used in the Spanish State Meteorological Agency (AEMET) for obtaining gridded datasets of monthly minimum, maximum and mean temperature with 1 × 1 km spatial resolution for Spain, covering the period 1916-2018. These datasets have been created for climate analysis and monitoring, and will be updated periodically to extend the time coverage. The data used to produce the grids have undergone a quality control process in order to remove or correct erroneous data. The spatial interpolation method consists on a multiple linear regression with ordinary kriging of the regression residuals, using elevation, easting, northing and distance to the coast as independent variables in the regression. The performance of the interpolation method and the accuracy of the grids are evaluated using a cross-validation approach to estimate the errors. Some examples of derived products are shown, as well as a temperature analysis over the 1916-2018 period in Spain based on the gridded datasets

Evolución de los climas de Köppen-Geiger en España (1951-2020)

Ponencia presentada en: XII Congreso de la Asociación Española de Climatología celebrado en Santiago de Compostela entre el 19 y el 21 de octubre de 2022.[ES]A pesar de haber sido originariamente formulada hace más de cien años, la clasificación de Köppen-Geiger sigue siendo actualmente la clasificación climática más ampliamente usada en los estudios climátológicos en todo el mundo. Basada en la relación entre el clima y la vegetación, esta clasificación proporciona una forma eficiente y sencilla de describir las condiciones climáticas y su estacionalidad, usando un esquema de clasificación que resulta a la vez simple y ecológicamente consistente. En este artículo se examina la evolución temporal de los tipos de clima en España en el periodo 1951-2020, usando rejillas de temperatura y precipitación de alta resolución (celdas de 1 x 1 km). Se muestran y comparan los mapas de la clasificación climática obtenidos para periodos sucesivos de 30 años, y se analiza la evolución temporal de cada tipo de clima en España, poniéndose de manifiesto una expansión progresiva de los climas áridos y una contracción del área ocupada por los climas fríos en el territorio español durante el periodo de estudio.[EN]Despite of having been originally formulated more than one hundred years ago, the Köppen-Geiger classification is still nowadays the climate classification most widely used in climatological studies. Based on the empirical relationship between climate and vegetation, this climate classification provides an efficient and easy way to describe climate conditions and their seasonality by using a simple but ecologically meaningful classification scheme. This study examines the temporal evolution of the Köppen-Geiger climate classification in Spain for the period 1951-2020, using high-resolution gridded datasets of monthly mean temperature and precipitation with 1 x 1 km spatial resolution. Climate classification maps for consecutive 30-year reference periods are compared, and the temporal evolution of each climate type in Spain is analysed, showing a progressive expansion of the arid climate zones and a contraction of the cold climate zones along the study period

Observed Changes of Köppen Climate Zones in Spain since 1951

Despite of having been originally formulated more than one hundred years ago, the Köppen classification is still nowadays the climate classification most widely used in climatological studies. Based on the empirical relationship between climate and vegetation, this climate classification provides an efficient and easy way to describe climate conditions and their seasonality by using a simple but ecologically meaningful classification scheme. This study examines the temporal evolution of the Köppen climate classification in Spain for the period 1951-2020, using high-resolution gridded datasets of monthly mean temperature and precipitation with 1 x 1 km spatial resolution. Climate classification maps for consecutive 30-year reference periods are compared, and the temporal evolution of each climate type in Spain is analysed, showing a progressive expansion of the arid climate zones and a contraction of the cold climate zones along the study period

Evolución de los climas de Köppen en España (1951-2020)

Conferencia celebrada de forma online el día 13 de octubre de 2022, en el marco del Aula Francisco Morán