Long-term drought variability and trends in Barcelona (1787-2014)

Coll, Joan Ramon; Aguilar, Enric; Prohom, Marc; Sigrò, Javier

doi:10.18172/cig.2927

Cited by 9 publications

(8 citation statements)

References 37 publications

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“…Catalonian droughts' knowledge is most of all based on drought events' variability studies, either historically avoiding any future SPI (standardized precipitation index) and SPEI (standardized precipitation-evaporation index) indicators projection [13], or assessing climate change effects without considering the representative concentration pathways (RCPs) presented in the Intergovernmental Panel on Climate Change (IPCC) fifth assessment report [14].…”

Section: Introductionmentioning

confidence: 99%

Climate Change Implications for Water Availability: A Case Study of Barcelona City

Forero-Ortiz

Martínez‐Gomariz

Monjo³

2020

Sustainability

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Barcelona city has a strong dependence on the Ter and Llobregat reservoir system to provide drinking water. One main concern for the next century is a potential water scarcity triggered by a severe and persistent rainfall shortage. This is one of the climate-driven impacts studied within the EU funded project RESCCUE. To evaluate potential drought scenarios, the Hydrologiska Byråns Vattenbalansavdelning (HBV) hydrological model reproduces the water contributions by month that have reached the reservoirs, regarding the accumulated rainfall over each sub-basin, representing the available historical-observed water levels. For future scenarios, we adjusted the input data set using climate projections of rainfall time series data of the project RESCCUE. Local outputs from 9 different climate models were applied to simulate river basins' responses to reservoirs' incoming water volume. Analyzing these results, we obtained average trends of the models for each scenario, hypothetical extreme values, and quantification for changes in water availability. Future water availability scenarios for Barcelona central water sources showed a mean decrease close to 11% in comparison with the period 1971-2015, considering the representative concentration pathway 8.5 (RCP8.5) climate change scenario in the year 2100. This research forecasts a slight downward trend in water availability from rainfall contributions from the mid-21st century. This planned future behavior does not mean that the annual water contributions are getting lower than the current ones, but rather, identifies an escalation in the frequency of drought cycles.

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Section: Introductionmentioning

confidence: 99%

Climate Change Implications for Water Availability: A Case Study of Barcelona City

Forero-Ortiz

Martínez‐Gomariz

Monjo³

2020

Sustainability

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“…Vicente-Serrano (2013) identified several regions in Spain showing an increase in the severity of droughts (particularly Southwestern Spain, Catalonia and the Central Ebro basin) (see also Coll et al, 2016;Gouveia et al, 2016). An increase in the duration of dry spells in the Central Ebro Valley was detected by López-Moreno et al (2010) in winter, spring and summer, and González-Hidalgo et al (2011) recorded a large decline in the late winter and early spring precipitation (February-March).…”

Section: Discussionmentioning

confidence: 99%

Modernization of new irrigated lands in a scenario of increasing water scarcity: from large reservoirs to small ponds

Jlassi

Nadal‐Romero

García-Ruiz

2016

CIG

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“…In continental Spain, Vicente-Serrano et al (2014b) showed a general decrease in relative humidity from the decade of 1960, mainly associated with a general decrease in the moisture transport to the Iberian Peninsula as well as a certain precipitation decrease. Similarly, Espadafor et al (2011) and Vicente-Serrano et al (2014b) showed that the strong increase in ET o in the last decades is associated with the relative humidity decrease due to air temperature rise, which caused more severe drought events (Coll et al, 2016;Lorenzo-Lacruz and Morán-Tejeda, 2016; Peña- Gallardo et al, 2016). In the Canary Islands, no precipitation changes have been identified during the analysed period (Sánchez-Benitez et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…This uneven distribution of meteorological observatories constrains the high interest to know the evolution of atmospheric processes in this region, where climate variability is strongly controlled by changes in the Hadley circulation (Hansen et al, 2005) that affect the position and intensity of the subtropical anticyclone belt. Knowing the evolution of AED and its main drivers in this region is highly relevant given the general climate aridity of the region and the low availability of water resources (Custodio and Cabrera, 2002). In this work we analyse the recent evolution and meteorological drivers of the AED in the Canary Islands.…”

Section: Introductionmentioning

confidence: 99%

Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands

Vicente‐Serrano

Azorín-Molina

Sánchez-Lorenzo

et al. 2016

Hydrol. Earth Syst. Sci.

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Abstract. We analysed recent evolution and meteorological drivers of the atmospheric evaporative demand (AED) in the Canary Islands for the period 1961-2013. We employed long and high-quality time series of meteorological variables to analyse current AED changes in this region and found that AED has increased during the investigated period. Overall, the annual ET o , which was estimated by means of the FAO-56 Penman-Monteith equation, increased significantly by 18.2 mm decade −1 on average, with a stronger trend in summer (6.7 mm decade −1 ). In this study we analysed the contribution of (i) the aerodynamic (related to the water vapour that a parcel of air can store) and (ii) radiative (related to the available energy to evaporate a quantity of water) components to the decadal variability and trends of ET o . More than 90 % of the observed ET o variability at the seasonal and annual scales can be associated with the variability in the aerodynamic component. The variable that recorded more significant changes in the Canary Islands was relative humidity, and among the different meteorological factors used to calculate ET o , relative humidity was the main driver of the observed ET o trends. The observed trend could have negative consequences in a number of water-depending sectors if it continues in the future.

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Long-term drought variability and trends in Barcelona (1787-2014)

Cited by 9 publications

References 37 publications

Climate Change Implications for Water Availability: A Case Study of Barcelona City

Climate Change Implications for Water Availability: A Case Study of Barcelona City

Modernization of new irrigated lands in a scenario of increasing water scarcity: from large reservoirs to small ponds

Recent changes and drivers of the atmospheric evaporative demand in the Canary Islands

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