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How anthropogenic climate change influences wildfire behaviour in the iberian peninsula
No full textResumen de la ponencia presentada en: XXXVI Jornadas Científicas de la AME y el XXII Encuentro Hispano Luso de Meteorología celebrado en Cádiz y San Fernando del 13 al 15 de marzo de 2024.Climate change affects wildfire spread both by increasing fuel dryness and by causing changes in vegetation.
However, the direct effect of global warming on wildfires is hard to quantify due to the multiple non-climatic
factors involved in their ignition and spread. By combining wildfire observations with the latest generation of
climate models, we show that in more than half of the large wildfires (area>500 ha) that took place in the Iberian
Peninsula between 2001 and 2021 there is a significant increase in the rate of spread with respect to what it would
have been in the pre-industrial period, attributable to global warming. The influence of enhanced vegetation
growth on the increase in the rate of spread since the pre-industrial period could potentially be even higher than
that of the temperature increase. We also show that other parameters associated with wildfire behaviour, such as
heat release or flame length, also show the same climate change-induced amplification effect
Resolución de 5 de marzo de 2024, de la Subsecretaría, por la que se convoca proceso selectivo para ingreso, por el sistema general de acceso libre y promoción interna, en el Cuerpo de Diplomados en Meteorología del Estado
Get PDFBalance hídrico nacional. Número 7/2024
No full textBalance hídrico correspondiente al 10 de marzo de 2024
AEMET en Castilla-La Mancha
No full textVídeo en el que se resume la visita de la Presidenta de AEMET a la Delegación Territorial de AEMET en Castilla-La Mancha.El 4 de abril 2024 la presidenta de AEMET visitaba la delegación territorial en Castilla-La Mancha, con sede en Toledo. Un observatorio en el recinto del IGN y en el que pudo reunirse con los jefes de las EMAe y OMD de la región y, vía telemática, con todo el personal que pudo conectarse. Una mañana en la ciudad imperial en la que se disfruta del legado de un cruce milenario de culturas
Balance hídrico nacional. Número 11/2024
No full textBalance hídrico correspondiente al 20 de abril de 2024
Variability and trends of near-surface wind speed over the Tibetan Plateau: The role played by the westerly and Asian monsoon
Get PDFNear-surface wind speed exerts profound impacts on many environmental issues, while the long-term ( 60 years) trend and multidecadal
variability in the wind speed and its underlying causes in global high-elevation and mountainous areas (e.g., Tibetan Plateau) remain largely
unknown. Here, by examining homogenized wind speed data from 104 meteorological stations over the Tibetan Plateau for 1961e2020 and
ERA5 reanalysis datasets, we investigated the variability and long-term trend in the near-surface wind speed and revealed the role played by the
westerly and Asian monsoon. The results show that the homogenized annual wind speed displays a decreasing trend (0.091 m s1 per decade,
p < 0.05), with the strongest in spring (0.131 m s1 per decade, p < 0.05), and the weakest in autumn (0.071 m s1 per decade, p < 0.05).
There is a distinct multidecadal variability of wind speed, which manifested in an prominent increase in 1961e1970, a sustained decrease in
1970e2002, and a consistent increase in 2002e2020. The observed decadal variations are likely linked to large-scale atmospheric circulation,
and the correlation analysis unveiled a more important role of westerly and East Asian winter monsoon in modulating near-surface wind changes
over the Tibetan Plateau. The potential physical processes associated with westerly and Asian monsoon changes are in concordance with wind
speed change, in terms of overall weakened horizontal air flow (i.e., geostrophic wind speed), declined vertical thermal and dynamic momentum
transfer (i.e., atmospheric stratification thermal instability and vertical wind shear), and varied Tibetan Plateau vortices. This indicates that to varying degrees these processes may have contributed to the changes in near-surface wind speed over the Tibetan Plateau. This study has
implications for wind power production and soil wind erosion prevention in the Tibetan Plateau
La presidenta visita la Delegación de AEMET en Madrid
No full textVídeo en el que se resume la visita de la Presidenta de AEMET a la Delegación Territorial de AEMET en Madrid.El 29 de febrero 2024, la presidenta de AEMET visita la estación meteorológica aeronáutica (EMAe) de Madrid - Barajas, la Delegación Territorial de AEMET en la Comunidad de Madrid y termina con una breve reunión con el Delegado del Gobierno en Madrid