Análisis de escenarios de cambio climático para la provincia de Jaén
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2019-10-16
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Jaén: Universidad de Jaén
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[ES] En la actualidad el cambio climático es considerado uno de los problemas que más interesa y preocupa a la sociedad. Las variaciones en el clima son cada vez más evidentes, sobre todo en el clima Mediterráneo. En el presente trabajo se analizan proyecciones de cambio climático para la provincia de Jaén. Para ello, se comparan dos variables climáticas: precipitaciones acumuladas estacionales (primavera, verano, otoño e invierno) y temperaturas máximas y mínimas diarias de enero y julio. Se toma como referencia el periodo 1960-2000, y se compara con el clima en dos periodos futuros: 2030-2060 y 2070-2100. El análisis se lleva a cabo para dos escenarios de emisiones: RCP 4.5 y RCP 8.5. En casi todos los casos estudiados en cuanto a las precipitaciones, se encuentra que estas disminuyeron con respecto al periodo de referencia. Sin embargo, en el caso de las temperaturas, aumentaron tanto las mínimas cómo las máximas de enero y julio. A partir de los resultados se concluye que tendremos inviernos con temperaturas suaves y veranos muy calurosos, con una disminución de las precipitaciones, sobre todo, en primavera y otoño. El aumento de las temperaturas y la disminución de las precipitaciones será más notable en el periodo 2070-2100 y para el escenario RCP 8,5
Palabras clave: cambio climático, Jaén, precipitaciones, temperaturas, periodo, RCP 4,5, RCP 8,5.
[EN] At present, climate change is considered one of the problems that most interests and concerns society. Variations in the climate are increasingly evident, especially in the Mediterranean climate. This paper analyzes the climate change projections for the province of Jaén. For this, two climatic variables are compared: seasonal accumulated rainfall (spring, summer, autumn and winter) and daily maximum and minimum temperatures of January and July. The 1960-2000 period is taken as a reference, and compared with the weather in two future periods: 2030-2060 and 2070-2100. The analysis is carried out for two emission situations: CPR 4.5 and CPR 8.5. In almost all cases studied, rainfall decreased with respect to the reference period. However, in the case of temperatures, both the minimums and the highs of January and July increased. From the results it is concluded that we will have winters with mild temperatures and very hot summers, with a decrease in rainfall, especially in spring and autumn. The increase in temperatures and the decrease in rainfall will be more noticeable in the 2070-2100 period and for the RCP scenario 8.5. Key words: climate change, Jaén, rainfall, temperatures, period, RCP 4,5, RCP 8,5
[EN] At present, climate change is considered one of the problems that most interests and concerns society. Variations in the climate are increasingly evident, especially in the Mediterranean climate. This paper analyzes the climate change projections for the province of Jaén. For this, two climatic variables are compared: seasonal accumulated rainfall (spring, summer, autumn and winter) and daily maximum and minimum temperatures of January and July. The 1960-2000 period is taken as a reference, and compared with the weather in two future periods: 2030-2060 and 2070-2100. The analysis is carried out for two emission situations: CPR 4.5 and CPR 8.5. In almost all cases studied, rainfall decreased with respect to the reference period. However, in the case of temperatures, both the minimums and the highs of January and July increased. From the results it is concluded that we will have winters with mild temperatures and very hot summers, with a decrease in rainfall, especially in spring and autumn. The increase in temperatures and the decrease in rainfall will be more noticeable in the 2070-2100 period and for the RCP scenario 8.5. Key words: climate change, Jaén, rainfall, temperatures, period, RCP 4,5, RCP 8,5