Atlantic Ocean sea-surface temperatures and regional streamflow variability in the Adour-Garonne basin, France

Oubeidillah, Abdoul; Tootle, Glenn A.; Anderson, SallyRose

doi:10.1080/02626667.2012.659250

Cited by 16 publications

(8 citation statements)

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“…Regarding rivers flows over France, to the best of our knowledge, such large and widespread multidecadal variations have not been described before. The links between SST averaged in the North Atlantic (called AMO in those studies but probably best called the North Atlantic SST (NASST) index as those studies do not specifically deal with multi-decadal variations) and river flows in France have been studied by Oubeidillah et al (2012) and Giuntoli et al (2013). Other than at a few gauging stations, Oubeidillah et al (2012) report no significant relationships between NASST and river flows in the Adour-Garonne Basin.…”

Section: Discussionmentioning

confidence: 99%

“…The links between SST averaged in the North Atlantic (called AMO in those studies but probably best called the North Atlantic SST (NASST) index as those studies do not specifically deal with multi-decadal variations) and river flows in France have been studied by Oubeidillah et al (2012) and Giuntoli et al (2013). Other than at a few gauging stations, Oubeidillah et al (2012) report no significant relationships between NASST and river flows in the Adour-Garonne Basin. Giuntoli et al (2013) show significant relationships between hydrological drought severity at some gauging stations over France and the NASST index.…”

Section: Discussionmentioning

confidence: 99%

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Multi-decadal river flow variations in France

Boé

Habets

2014

Hydrol. Earth Syst. Sci.

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Abstract. In this article, multi-decadal variations in the French hydroclimate are investigated, with a specific focus on river flows. Based on long observed series, it is shown that river flows in France generally exhibit large multi-decadal variations in the instrumental period (defined in this study as the period from the late 19th century to the present), especially in spring. Differences of means between 21 yr periods of the 20th century as large as 40 % are indeed found for many gauging stations. Multi-decadal spring river flow variations are associated with variations in spring precipitation and temperature. These multi-decadal variations in precipitation are themselves found to be driven by large-scale atmospheric circulation, more precisely by a multi-decadal oscillation in a sea level pressure dipole between western Europe and the eastern Atlantic. It is suggested that the Atlantic Multidecadal Variability, the main mode of multidecadal variability in the North Atlantic-Europe sector, controls those variations in large-scale circulation and is therefore the main ultimate driver of multi-decadal variations in spring river flows. Potential multi-decadal variations in river flows in other seasons, and in particular summer, are also noted. As they are not associated with significant surface climate anomalies (i.e. temperature, precipitation) in summer, other mechanisms are investigated based on hydrological simulations. The impact of climate variations in spring on summer soil moisture, and the impact of soil moisture in summer on the runoff-to-precipitation ratio, could potentially play a role in multi-decadal summer river flow variations. The large amplitude of the multi-decadal variations in French river flows suggests that internal variability may play a very important role in the evolution of river flows during the next decades, potentially temporarily limiting, reversing or seriously aggravating the long-term impacts of anthropogenic climate change.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Multi-decadal river flow variations in France

Boé

Habets

2014

Hydrol. Earth Syst. Sci.

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“…Also focusing on stream flow drought, but for winter multiannual events for the English lowlands, Folland et al (2015) have shown that La Nina episodes, through producing winter rainfall deficits, are important for some multi-annual stream flow and groundwater drought episodes; stream flow drought indicators also show some evidence of weak links to ENSO as well. For stream flow variability in the Adour-Garonne basin in south western France, Oubeidillah et al (2012) identified SST anomalies in the equatorial region of the Atlantic Ocean to be important as well as the AMO and NAO. Remote connections between stream flow and SST are also evident for some river basins in Africa.…”

Section: Stream Flowmentioning

confidence: 98%

Hydroclimatology, modes of climatic variability and stream flow, lake and groundwater level variability

McGregor

2017

Progress in Physical Geography: Earth and Environment

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(2017) 'Hydroclimatology, modes of climatic variability and stream ow, lake and groundwater level variability.', Progress in physical geography., 41 (4). pp. 496-512. Further information on publisher's website:https://doi.org/10.1177/0309133317726537Publisher's copyright statement:Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Hydroclimatology is an expansive discipline largely concerned with understanding the workings of the hydrological cycle in a climate context. Acknowledging this, and given the burgeoning interest in the relation between climate and water in the context of working towards an improved understanding of the impacts of climatic variability on water resources this progress report turns its attention to the connection between large scale modes of climatic variability and hydrological variability in streams, lakes and groundwater. A survey of the recent literature finds a plethora of teleconnection indices have been employed in the analysis of hydrological variability. Indices representing modes of climatic variability such as El Nino Southern Oscillation, the North Atlantic Oscillation, the Pacific North America pattern, the Pacific Decadal Oscillation and Atlantic Meridional Oscillation dominate the literature on climatic and hydrological variability. While examples of discernible signals of modes of climatic variability in stream flow and lake and groundwater level time series abound, the associations between periodic to quasi-period oscillations in atmospheric/ocean circulation patterns and variability within the terrestrial branch of the hydrological are far from simple being both monotonic (linear and non-linear) and non-monotonic and also conditional on period of analysis, season and geographic region. While there has been considerable progress over the last five years in revealing the climate mechanisms that underlie the links between climatic and hydrological variability a bothering feature of the literature is how climatic and hydrological variability is often viewed through a purely statistical lens with little attention given to diagnosing the relationship in terms of atmosphere and ocean physics and dynamics. Consequently significant progress remains to be made in obtaining a satisfactory hydroclimatological understanding of stream flow, lake and groundwater variability especially, if hydroclimatological knowledge is to be fully integrated into water resource management and planning.3

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“…Most studies since then, including the very recent ones, have scrutinized the multidimensional role of specific oceanic-atmospheric phenomena, such as ENSO, Equatorial Indian Ocean Oscillation (EQUINOO), Pacific Decadal Oscillation (PDO), Atlantic Multidecadal Oscillation (AMO), Indian Ocean Dipole (IOD), North Atlantic Oscillation (NAO), etc. in influencing hydrological variables worldwide (Chiew and McMahon 2002, Terray et al 2003, Gadgil et al 2004, Goswami et al 2006, Maity and Nagesh Kumar 2006, 2008, Feng and Hu 2008, Li et al 2008, Mo and Schemm 2008, Ting et al 2011, Singhrattna et al 2012, Oubeidillah et al 2012, Jiang et al 2013, Rogers 2013, Wang et al 2013. For instance, the influence of ENSO and AMO has been established in relation to the variability of China's summer precipitation (Gu et al 2009, Ye 2014 as well as the frequency of its extreme precipitation events (Fu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Uncovering global climate fields causing local precipitation extremes

Chanda

Maity

2016

Hydrological Sciences Journal

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Earlier studies have focused on establishing the hydroclimatic teleconnection between hydrological extremes and a single or a few preselected coupled oceanic-atmospheric circulation patterns (OACP). In this study, we hypothesise that local (continental-scale) hydrological extremes are, in general, influenced by a concurrent effect of different climate variables from several regions across the globe. The suite of these variables is termed the global climate pattern (GCP) behind the target hydrological event. To explore our hypothesis, we considered monthly Indian rainfall, which is a complex, continental-scale hydrological phenomenon. Extreme events are identified through the standardized precipitation anomaly index (SPAI), used as an indicator of dry and wet events. The global fields of different climate variables-sea surface temperature (SST), surface pressure (SP), air temperature (AT), wind speed (WS) and total precipitable water (TPW)-are explored for possible revelatory patterns. In all, 15 different variables, each designated by a climate anomaly from a distinct zone on the globe, are found to form a potential global climate signal pool, which can be designated as the GCP for Indian rainfall. The combined information extracted from this GCP is proven to be highly efficient in predicting dry and wet events in Indian rainfall.

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Atlantic Ocean sea-surface temperatures and regional streamflow variability in the Adour-Garonne basin, France

Cited by 16 publications

References 50 publications

Multi-decadal river flow variations in France

Multi-decadal river flow variations in France

Hydroclimatology, modes of climatic variability and stream flow, lake and groundwater level variability

Uncovering global climate fields causing local precipitation extremes

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