10th HyMeX Workshop, 4-7 July 2017, Barcelona, Spain

Barcelona, Spain

The 10th HyMeX workshop will take place from 4 to 7 July 2017, in Barcelona, Spain.
It will be organized by the Water Research Institute (IdRA) and the Faculty of Physics from the University of Barcelona.

  • 2d circular in pdf format
  • Short abstracts for oral or poster presentations are invited related to the Mediterranean water cycle.
    Themes of particular interest are: heavy precipitation, flash-flood and vulnerabilities, Mediterranean cyclones, ocean circulation and dense water formation, droughts and water resources. Contributions on recent advances in prediction and management of the water cycle, its link with renewable energy, its related hazards and their impacts, from nowcasting to climate scales, are also welcome.
    Short abstracts can be submitted online here (Submission deadline is extended to 17 March 2017)
  • Registration form
Scientific committee
    M.C. Llasat (Chair, U. Barcelona, Es), V. Ducrocq (Co-chair, CNRM, Fr), P. Alpert (TAU, Is), M. Borga (U. Padova, It), I. Braud (IRSTEA, Fr), S. Coquillat (LA, Fr), Ph. Drobinski (LMD-IPSL, Fr), C. Estournel (LA, Fr), E. Flaounas (NOA, Gr), N. Fourrie (CNRM, Fr), V. Homar (UIB, Es), S. Khodayar (KIT, De), V. Kotroni (NOA, Gr), P. Quintana (O. Ebre, Es), S. Somot (CNRM, Fr), A. Turiel (ICM, Es)
Organizing committee
    M.C. Llasat, J. Martin-Vide, J. Bech, N. Casals, P. Guitchev (IdRA, U. Barcelona), M. Llasat-Botija, A. del Moral, M. Cortes, J. Gilabert, (U. Barcelona), P. Quintana (O. Ebre), L. Labatut, O. Roussot (CNRM, Fr)

ACCOMMODATION:

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Inundacions 1-3 novembre 2015

Fa un any, entre els dies 1 i 3 de novembre va tenir lloc un fort temporal que va produir nombroses inundacions en el territori. A Catalunya, les comarques més afectades van ser: Segrià, La Segarra, Barcelonès, Tarragonès, Baix Llobregat, Ribera d’Ebre, Baix Ebre, Urgell, Vallès Occidental, Baix Camp, Alt Penedès, Conca de Barberà.

Les quantitats de precipitació acumulada van ser superiors als 100 mm en molt punts, destacant els 220,7 mm del Parc Nacional dels Ports o els 189,9 mm del municipi de Viladrau entre els 3 dies que va durar l’episodi. Alguns rius es van desbordar provocant greus inundacions sobretot de baixos i soterranis. A Agramunt, la matinada del 3/11, es van produir 4 víctimes mortals degut al desbordament del riu Sió.

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(Fotos de A. Cangròs, J.J. Raventós, O. Rodríguez, compartides amb l’App FLOODUP).

El temporal de llevant va provocar altres conseqüències com un fort temporal de mar que va produir afectacions a les platges de gran part del Mediterrani espanyol, com a les de les províncies d’Alacant o Màlaga, produint inundacions de carrers i locals prop de la franja marítima i destrosses en alguns passeigs marítims. Al municipi de Mont-Roig del Camp es va produir un tornado que va malmetre teulades, arbres i faroles.

 

Ofertes de postdoc

POSTDOC 1:

cnrm

POSTDOC 2:

med-climate-modelling

More information in: HYMEX

13 COLLOQUE GÉORISQUE

colloque-georisque

Trends in flash flood events versus convective precipitation in the Mediterranean region: The case of Catalonia

Maria Carmen Llasat, Raul Marcos, Marco Turco, Joan Gilabert, Montserrat Llasat-Botija

ABSTRACT

The aim of this paper is to analyse the potential relationship between flash flood events and convective precipitation in Catalonia, as well as any related trends. The paper starts with an overview of flash floods and their trends in the Mediterranean region, along with their associated factors, followed by the definition of, identification of, and trends in convective precipitation. After this introduction the paper focuses on the north-eastern Iberian Peninsula, for which there is a long-term precipitation series (since 1928) of 1-min precipitation from the Fabra Observatory, as well as a shorter (1996–2011) but more extensive precipitation series (43 rain gauges) of 5-min precipitation. Both series have been used to characterise the degree of convective contribution to rainfall, introducing the β parameter as the ratio between convective precipitation versus total precipitation in any period. Information about flood events was obtained from the INUNGAMA database (a flood database created by the GAMA team), with the aim of finding any potential links to convective precipitation. These flood data were gathered using information on damage where flood is treated as a multifactorial risk, and where any trend or anomaly might have been caused by one or more factors affecting hazard, vulnerability or exposure. Trend analysis has shown an increase in flash flood events. The fact that no trends were detected in terms of extreme values of precipitation on a daily scale, nor on the associated ETCCDI (Expert Team on Climate Change Detection and Indices) extreme index, could point to an increase in vulnerability, an increase in exposure, or changes in land use. However, the summer increase in convective precipitation was concentrated in less torrential events, which could partially explain this positive trend in flash flood events. The β parameter has been also used to characterise the type of flood event according to the features of the precipitation. The highest values correspond to short and local events, usually with daily β values above 0.5, while the minimum threshold of daily β for catastrophic flash floods is 0.31

Keywords

  • Flash floods;
  • Convective precipitation;
  • β parameter;
  • Trend analysis;
  • Mediterranean

You can download here: http://www.sciencedirect.com/science/article/pii/S0022169416303079

Regional differential behaviour of maximum temperatures in the Iberian Peninsula regarding the Summer NAO in the second half of the twentieth century

V. Favà, J.J. CurtoM.C. Llasat

Abstract

The relationship between atmospheric circulation in northern Europe in summer and the maximum temperatures (Tx) of the Iberian Peninsula (IP) have received little attention. In this article we explore which synoptic structures related to high absolute values of SNAO (Summer North Atlantic Oscillation) are linked to significant anomalies in the maximum temperatures of the IP on a regional scale. Furthermore, we examine how the frequency of these structures has contributed to the differential evolution of maximum temperature trends in the IP and modulated the relationship between the SNAO and the maximum temperatures of the IP in the second half of the twentieth century.

Four basic synoptic structures were identified and their time series were calculated. Thus, we can explain why significant positive correlations between the SNAO and the maximum temperatures for the north of the IP are found for the 1951–1967 period, while in the 1962–1978 period these correlations are negative and affect the eastern part of the IP.

We found that, for the 1951–1967 period, the negative SNAO contributed to a lowering of the maximum temperatures in the NW and north IP and to a strengthening of the north-south IP maximum temperature gradient. During the 1970s and the start of the 1980s, owing to the much higher values of SNAO, the more negative anomalies in the coldest days shifted towards the east of the IP.

Keywords

  • Summer NAO;
  • Maximum temperatures;
  • Regional trends;
  • Temperature gradient;
  • Pressure gradient;
  • Iberian Peninsula

You can download here: http://www.sciencedirect.com/science/article/pii/S0169809516302319

GAUDIR UB – CLIMA I CANVI GLOBAL

El projecte GAUDIR UB és un programa d’activitats acadèmiques organitzat des de l’Àrea de Formació Complementària.

Aquest projecte pretén posar a disposició de la societat el coneixement que es genera a la Universitat de Barcelona. Es tracta d’un conjunt d’activitats acadèmiques de format presencial i de marcat caràcter divulgatiu, amb el rigor i la qualitat que n’asseguren una institució com la Universitat de Barcelona.

gaub

En el marc d’aquesta iniciativa, el grup GAMA fem un curs durant aquest primer trimestre. El curs es diu: Clima i Canvi Global.

L’objectiu del curs és, per una banda, proporcionar els coneixements bàsics de meteorologia i climatologia per comprendre el canvi climàtic, així com les novetats aportades pel darrer informe de l’IPCC. Es tindran presents els canvis socioeconòmics més rellevants i els impactes del canvi climàtic, particularment en els riscos naturals. Per altra banda, es tracta de generar un espai de reflexió i donar eines per participar activament en un desenvolupament sostenible. S’inclouran sessions més pràctiques que permetin el debat i la interacció i es mostraran les tecnologies que s’utilitzen en aquest camp d’estudi.

El cinquè informe de l’IPCC va posar de manifest l’elevat acord sobre el paper de l’activitat humana en el canvi climàtic i la necessitat d’actuar. La Conferència de les Parts (COP21) celebrada al 2015 va acabar amb l’Acord de París, un acord històric que suposa un compromís mundial per abordar el canvi climàtic. El repte que se’ns presenta, com a individus i societat, és altament complex i per abordar-lo el coneixement és i serà una de les eines més eficaces.

Si esteu interessats en participar apunteu-vos en aquesta pàgina:

GAUDIR UB