Climatology and ranking of hazardous precipitation events in the western Mediterranean area

Insua-Costa, Damián; Lemus-Cánovas, Marc; Míguez-Macho, Gonzalo; Llasat, María Carmen

doi:10.1016/j.atmosres.2021.105521

Cited by 23 publications

(21 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In particular, in the boxplot, the characterization of the average CV series is represented. The CV ranges between about 16.0% (minimum CV value) and 56.5% (maximum CV value), thus evidencing high variability that is typical of the Mediterranean basin [33]. This CV range is similar to the ones obtained in past studies performed in Eastern and Southern Africa, especially for the maximum values.…”

Section: Resultssupporting

confidence: 86%

Analysis of the Spatiotemporal Annual Rainfall Variability in the Wadi Cheliff Basin (Algeria) over the Period 1970 to 2018

Achite

Caloiero

Wałęga

et al. 2021

Water

View full text Add to dashboard Cite

In the context of climate variability and hydrological extremes, especially in arid and semi-arid zones, the issue of natural risks and more particularly the risks related to rainfall is a topical subject in Algeria and worldwide. In this direction, the spatiotemporal variability of precipitation in the Wadi Cheliff basin (Algeria) has been evaluated by means of annual time series of precipitation observed on 150 rain gauges in the period 1970–2018. First, in order to identify the natural year-to-year variability of precipitation, for each series, the coefficient of variation (CV) has been evaluated and spatially distributed. Then, the precipitation trend at annual scale has been analyzed using two nonparametric tests. Finally, the presence of possible change points in the data has been investigated. The results showed an inverse spatial pattern between CV and the annual rainfall, with a spatial gradient between the southern and the northern sides of the basin. Results of the trend analysis evidenced a marked negative trend of the annual rainfall (22% of the rain gauges for a significant level equal to 95%) involving mainly the northern and the western-central area of the basin. Finally, possible change points have been identified between 1980 and 1985.

show abstract

Section: Resultssupporting

confidence: 86%

Analysis of the Spatiotemporal Annual Rainfall Variability in the Wadi Cheliff Basin (Algeria) over the Period 1970 to 2018

Achite

Caloiero

Wałęga

et al. 2021

Water

View full text Add to dashboard Cite

show abstract

“…These natural hazards, particularly floods, can be triggered by torrential rainfall [13,14]. Insua-Costa et al [14] were able to precisely characterise 1991 hazardous precipitation events into four main weather types and an extra one for low gradient pressure situations. This highlights the need to study atmospheric patterns involving this type of torrential event.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of Extreme Precipitation Events in the Pyrenees: From the Local to the Synoptic Scale

et al. 2021

Self Cite

View full text Add to dashboard Cite

Mountain systems within the Mediterranean region, e.g., the Pyrenees, are very sensitive to climate change. In the present study, we quantified the magnitude of extreme precipitation events and the number of days with torrential precipitation (daily precipitation ≥ 100 mm) in all the rain gauges available in the Pyrenees for the 1981–2015 period, analyzing the contribution of the synoptic scale in this type of event. The easternmost (under Mediterranean influence) and north-westernmost (under Atlantic influence) areas of the Pyrenees registered the highest number of torrential events. The heaviest events are expected in the eastern part, i.e., 400 mm day−1 for a return period of 200 years. Northerly advections over the Iberian Peninsula, which present a low zonal index, i.e., implying a stronger meridional component, give rise to torrential events over the western Pyrenees; and easterly advections favour extreme precipitation over the eastern Pyrenees. The air mass travels a long way, from the east coast of North America, bringing heavy rainfall to the western Pyrenees. In the case of the torrential events over the eastern Pyrenees, the trajectory of the air mass causing the events in these areas is very short and originates in the Mediterranean Basin. The North Atlantic Oscillation (NAO) index has no influence upon the occurrence of torrential events in the Pyrenees, but these events are closely related to certain Mediterranean teleconnections such as the Western Mediterranean Oscillation (WeMO).

show abstract

“…For a 5-year RP, maximum daily precipitation was generally estimated to be below 100 mm, except in the extreme east, where values of 150 mm day -1 were reached. The eastern Pyrenees is one of the areas receiving most torrential episodes on the Iberian Peninsula [14,47]. For a 10-year RP, 100 mm day -1 was generally reached throughout the region, with over 150 mm per day in the northeastern Pyrenees.…”

Section: Maximum Daily Precipitation For Different Return Periodsmentioning

confidence: 99%

“…These natural hazards, particularly floods, can be triggered by torrential rainfall [13,14]. This highlights the need to study atmospheric patterns involving this type of torrential events.…”

Section: Introductionmentioning

confidence: 99%

“…It involves selecting days of interest (e.g., days with precipitation ≥ 100 mm) and creating a synoptic classification with these torrential days [14] or simply averaging the synoptic variable of interest on the days in which a given threshold is surpassed at the surface in order to finally perform a synoptic composite [23]. This type of approach has been applied to NE Iberia [24], Iberia [25], Southern Europe [14,26] and to other areas of the world, such as Japan [27] and Northern Chile [28], among others. However, it had never been applied to the whole Pyrenees sector, a fact that constitutes a knowledge gap in relation to the synoptic characterization of torrential events in this region.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of Extreme Precipitation Events in the Pyrenees. From the Local to the Synoptic Scale.

Lemus-Cánovas¹,

López-Bustins²,

Martín‐Vide³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Mountain systems within the Mediterranean region, e.g. the Pyrenees, are very sensitive to climate change. In the present study, we quantified the magnitude of extreme precipitation events and the number of days with torrential precipitation (daily precipitation ≥ 100 mm) in all the rain gauges available in the Pyrenees for the 1981-2015 period, analyzing the contribution of the synoptic scale in this type of events. The easternmost (under the Mediterranean influence) and north-westernmost (under Atlantic influence) areas of the Pyrenees registered the highest number of torrential events. The heaviest events are expected in the eastern part, i.e. 400 mm day-1 for a return period of 200 years. Northerly advections over the Iberian Peninsula, which present a low zonal index, i.e. im-plying a stronger meridional component, give rise to torrential events over the western Pyrenees; and easterly advections favour extreme precipitation over the eastern Pyrenees. The air mass travels a long way, from the east coast of North America, bringing heavy rainfall to the western Pyrenees. In the case of the torrential events over the eastern Pyrenees, the air mass causing the events in these areas is very short and originates in the Mediterranean Basin. The NAO index has no influence upon the occurrence of torrential events in the Pyrenees, but these events are closely related to certain Mediterranean teleconnections such as the WeMO

show abstract

Climatology and ranking of hazardous precipitation events in the western Mediterranean area

Cited by 23 publications

References 52 publications

Analysis of the Spatiotemporal Annual Rainfall Variability in the Wadi Cheliff Basin (Algeria) over the Period 1970 to 2018

Analysis of the Spatiotemporal Annual Rainfall Variability in the Wadi Cheliff Basin (Algeria) over the Period 1970 to 2018

Characterisation of Extreme Precipitation Events in the Pyrenees: From the Local to the Synoptic Scale

Characterization of Extreme Precipitation Events in the Pyrenees. From the Local to the Synoptic Scale.

Contact Info

Product

Resources

About