Homogenization of daily peak wind gust series from Spain and Portugal

Presentación realizada en: 10th EUMETNET Data Management Workshop celebrado en St. Gallen, Suiza, del 28 al 30 de octubre de 2015.Daily peak wind gusts series from 80 stations (7 from Portugal and 73 from Spain) spanning 54 years (1961-2014) were subjected to a robust quality control, reconstructionand relative homogenization protocol using the R package 'Climatol', with and without using MM5 model simulation outputs as homogeneous reference series. As daily series are much noisier than their monthly aggregates, homogenization at the monthly scale was also performed, resulting in the detection and correction of 171 shifts in the series (almost double than the 87 shifts corrected directly on the daily series). Discussions of the results include comparisons of different statistical parameters derived from: · The raw series · Series homogenized directly at the daily scale · Series homogenized at the monthly scale · Daily series adjusted with the monthly homogenization correction factors And the statistical parameters compared include: · Trends · Return periods · Number of days with peak wind gust greater than the 90 percentile Lessons learned will help in improving the methodology to analyze climatological series of extreme weather events, and particularly our understanding of the daily peak wind gust variability and trends

Organización y gestión de un evento deportivo

El trabajo va consistir en la organización y gestión de un evento deportivo en la ciudad de Elche. El evento consistirá en torneo de pádel que se llevará a cabo durante fin de semana del 22-24 de septiembre, en las pistas de pádel del Clot. Los participantes tendrán una edad comprendida entre 16-30 años

Observed and simulated trends of daily peak wind gusts across northern Europe

Póster presentado en: EMS Annual Meeting: European Conference for Applied Meteorology and Climatology celebrado del 4 al 8 de septiembre de 2017 en Dublin, IrlandaExtreme wind hazards have a substantial societal and environmental impact. Due to their complex origins, there are great knowledge gaps about their variations and the associated mechanisms, which makes the prediction challenging. Specifically there is a urgent need to evaluate numerical models’ capability in simulate extreme wind conditions. This study focuses on assessing variabilities and trends of Daily Peak Wind Gust (DPWG) and its extreme (defined as 90th percentile) cross Northern Europe, based on observation during 1996-2016 and Regional Climate Model (RCM) simulations for 1970-2016. The aim is to evaluate RCMs’ ability in simulating past changes of the DPWG and its extreme as reflected in the observations. RCMs are the key tools available for the prediction of wind conditions. An improved understanding about how these models perform can help identify eventual deficiencies in the models, which may enhance our prediction ability

Homogenization of near-surface wind speed and gust series across Sweden

Póster presentado en: EGU General Assembly 2019 celebrada del 7 al 12 de abril en Viena, Austria.Studies which evaluate the impact of wind-related hazards need to have access to reliable and homogeneous measurements. Unfortunately, observed wind series can be affected by several non-climatic artifacts, which may introduce inhomogeneities that mislead the study of climate trends and multi-decadal variability. This study compares different homogenization approaches using the R-package CLIMATOL to identify the best technique for homogenizing near-surface mean wind speed (WS) and daily peak wind gust (DPWG, i.e. the highest near-surface wind gust speed recorded in 24 hours) across Sweden.This work has been supported by the project “Detection and attribution of changes in extreme wind gusts over land” (2017-03780) funded by the Swedish Research Council

Sea breeze convergence and convective cloud frequencies from AVHRR data over the Isle of Mallorca

Póster presentado en: 7th Annual Meeting of the European Meteorological Society/8th European Conference on Applications of Meteorology celebrado en San Lorenzo del Escorial, del 1 al 5 de octubre de 2007.The short-term forecast of the timing, location and intensity of sea breeze convection is currently one of the most difficult atmospheric phenomena, as forecasting tools available are not enough. The line of Cu clouds associated with low level sea breeze convergence and sea breeze complex interactions with features of coastline, small-scale terrain and large-scale synoptic flows is the main feature of this β-mesoscale circulation over the Isle of Mallorca. The boundary layer convergence zones developed by sea breezes can trigger scattered local heavy showers and thunderstorms under conditionally unstable atmosphere, which sometimes can be extraordinarily severe, producing hailstone and gusty winds. AVHRR data from the NOAA-17 (0900-1200 UTC) and NOAA16 (1200-1500 UTC) satellites were collected during 8-month study period (March-October 2004) for computing high-resolution (1.1 km) convective cloud masks making use of a new APOLLO cloud detection algorithm. A non-eulerian numerical model is used in order to simulate the diurnal evolution of mesoscale sea breeze field and calculate wind convergence values for a high resolution grid-point basis covering the centre of the Isle of Mallorca and surrounding Mediterranean sea. This study attempts to statistically verify the impact of low-level convergence of sea breezes on convective cloud development. The two-dimensional numerical model is capable of forecasting a reasonably accurate location of most prominent convective zones mapped by the cloud detection algorithm. Three case studies on influences of different intensities of low-level sea breeze convergence upon convective development were simulated: (1) September 17th, 2004 represents an episode of weak sea breeze convergence; (2) June 17th, 2004 corresponds to a light to moderate sea breeze convergence; and (3) July 27th, 2004 illustrates a strong sea breeze convergence.The study was supported by Spain’s Education and Science Ministry (MEC) project IPIBEX (CGL2005-07664-C02-01)

Trend of near-surface maximum wind speed in China: under a shifted East Asian monsoon scenario

Póster presentado en: EGU General Assembly 2018 celebrada del 8 al 13 de abril en Viena, Austria.The current global climate research has traditionally focused on changes in air temperature and precipitation. As a key climate parameter, changes of winds have a very significant impact on the environment, such as soil wind erosion, air pollution diffusion, wind power energy, etc. In particular, changes of extreme wind speed (i.e., wind gusts) are poorly analyzed and deserve further investigation. In this study we assess trends in máximum wind speed (MWS) across China for 1975-2016, using observed daily wind datasets, and also analyze its relationship with the East Asian monsoon. The raw observed MWS dataset was subject to aquality control and robust homogenization protocol using the Climatol package. The results reveal a statistically significant (p0.10). Even though MWS declines dominated across much of the country through out the year, only as mal number of stations showed statistically significant negative trends in summer (37.7 %) and spring (29.0 %). Our preliminary analyses show that the weakened East Asian monsoon, particularly in winter, positively correlates with the observed changes in MWS. However, statistical significant correlations are too few and further attribution analyses are strongly needed.This research is funded by (i) the National Natural Science Foundation of China (Grant No.41621061); (ii) the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant (Grant No. 703733); and (iii) the Swedish Research Council by the project “Detection and attribution of changes in extreme wind gusts over land” (2017-03780)

How well do Regional Climate Models simulate and parametrize surface wind speed and wind gust across Scandinavia?

Presentación realizada para el: EMS Annual Meeting - European Conference for Applied Meteorology and Climatology 2018, celebrado en Budapest del 3 al 7 de septiembre de 2018.This work has been also supported by the project “Detection and attribution of changes in extreme wind gusts over land” (2017-03780) funded by the Swedish Research Council

Elisidepsin es un compuesto antitumoral de origen marino que causa muerte celular por necrosis relacionada con el contenido lipídico de las líneas celulares tumorales

Elisidepsin es un compuesto sintético producido por PharmaMar S.A, derivado de un compuesto natural de origen marino. Tiene propiedades antitumorales gracias a que posee una gran actividad citotóxica. Produce una muerte rápida en células tumorales, asociada a la perturbación de la permeabilidad de la membrana plasmática, lo que provoca un cambio osmótico que da lugar a una serie de alteraciones morfológicas y fisiológicas características de una muerte celular por necrosis. Su mecanismo de acción parece estar relacionado con la composición de la bicapa lipídica, ya que se observan cambios en el contenido lipídico de una línea celular resistente al compuesto. Además, se ha demostrado la unión específica del compuesto a un determinado grupo de lípidos perteneciente al contenido lipídico total de la línea celular sensible al tratamiento con Elisidepsin, lo que puede contribuir a identificar cuál es la diana de acción de dicho citotóxic

Elisidepsin es un compuesto antitumoral de origen marino que causa muerte celular por necrosis relacionada con el contenido lipídico de las líneas celulares tumorales

Elisidepsin es un compuesto sintético producido por PharmaMar S.A, derivado de un compuesto natural de origen marino. Tiene propiedades antitumorales gracias a que posee una gran actividad citotóxica. Produce una muerte rápida en células tumorales, asociada a la perturbación de la permeabilidad de la membrana plasmática, lo que provoca un cambio osmótico que da lugar a una serie de alteraciones morfológicas y fisiológicas características de una muerte celular por necrosis. Su mecanismo de acción parece estar relacionado con la composición de la bicapa lipídica, ya que se observan cambios en el contenido lipídico de una línea celular resistente al compuesto. Además, se ha demostrado la unión específica del compuesto a un determinado grupo de lípidos perteneciente al contenido lipídico total de la línea celular sensible al tratamiento con Elisidepsin, lo que puede contribuir a identificar cuál es la diana de acción de dicho citotóxic

In Vivo Measurement of Cervical Elasticity on Pregnant Women by Torsional Wave Technique: A Preliminary Study

A torsional wave (TW) sensor prototype was employed to quantify stiffness of the cervix in pregnant women. A cross-sectional study in a total of 18 women between 16 weeks and 35 weeks + 5 days of gestation was performed. The potential of TW technique to assess cervical ripening was evaluated by the measurement of stiffness related to gestational age and cervical length. Statistically significant correlations were found between cervical stiffness and gestational age (R2 = 0.370, p = 0.0074, using 1 kHz waves and R2 = 0.445, p = 0.0250, using 1.5 kHz waves). A uniform decrease in stiffness of the cervical tissue was confirmed to happen during the complete gestation. There was no significant correlation between stiffness and cervical length. A stronger association between gestational age and cervical stiffness was found compared to gestational age and cervical length correlation. As a conclusion, TW technique is a feasible approach to objectively quantify the decrease of cervical stiffness related to gestational age. Further research is required to evaluate the application of TW technique in obstetric evaluations, such as prediction of preterm delivery and labor induction failure.This research was funded by the Ministry of Education grant numbers DPI2017-83859-R, DPI2014-51870-R and UNGR15-CE-3664, Ministry of Health grant numbers DTS15/00093 and PI16/00339, and Junta de Andalucía grant numbers, PI-0107-2017 and PIN-0030-2017