Large‐scale climatic influences on precipitation and discharge for a British river basin

Lavers, David A.; Prudhomme, Christel; Hannah, David M.

doi:10.1002/hyp.7668

Cited by 12 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Streamflows in northern European rivers are generally positively correlated with the NAO, whereas streamflows in central and southern rivers show the opposite relationship. A positive and significant relationship (r > 0.6) was found during winter in Scandinavia (Shorthouse and Arnell, 1997), and similar values were found for river basins in Britain (Philips et al, 2003;Lavers et al (2010). A significant negative relationship (r = −0.75) was reported by Rimbu et al (2002) for the Danube River in central Europe, and moderate negative correlations (r ≈ −0.4) have been reported (Pekarova and Pekar, 2004) for various sites in the Hron basin, Slovakia.…”

Section: Introductionsupporting

confidence: 55%

“…This explains the close relationship of summer and autumn streamflow to the previous winter NAO, especially in the southern basins with larger impoundment capacities (Tagus, 11 012 hm 3 ; Guadiana, 8635 hm 3 ; and Guadalquivir, 8280 hm 3 ): the majority of those rivers with retention capacity exceeding the mean annual discharge for the study period showed a sustained response to the winter NAO during the rest of the year. The strong correlations between the winter NAO index and streamflows during May, June and July in the Pyrenean sub-basins reflect the importance of snow accumulation and melting processes in the Pyrenean rivers (López-Moreno and García-Ruiz, 2004), and the inertia that these processes induce in the runoff yield.…”

Section: Spatial and Temporal Variabilitymentioning

confidence: 99%

See 1 more Smart Citation

The response of Iberian rivers to the North Atlantic Oscillation

Lorenzo‐Lacruz

Vicente‐Serrano

López‐Moreno

et al. 2011

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. In this study we analyzed the influence of the North Atlantic Oscillation (NAO) on the streamflow in 187 sub-basins of the Iberian Peninsula. Monthly and one-month lagged correlations were conducted to assess the spatiotemporal extent of the NAO influence on Iberian river discharges. Analysis of the persistence of the winter NAO throughout the year was also undertaken, together with analysis of streamflow anomalies during positive and negative NAO phases. Moving-window correlation analyses were conducted to assess potential changes in the temporal evolution of the NAO influence on Iberian streamflows. The results show that the NAO has a large impact on surface water resources throughout the Iberian Peninsula during winter, and in the Atlantic watershed during autumn. We showed that water resources management and snowmelt are causing the persistent dependence of streamflows on the previous winter NAO. We found that strongly positive streamflow anomalies occurred during winter, especially in the Atlantic watershed, and provide evidence of non-stationarity and spatial variability in the NAO influence on Iberian water resources.

show abstract

Section: Introductionsupporting

confidence: 55%

Section: Spatial and Temporal Variabilitymentioning

confidence: 99%

The response of Iberian rivers to the North Atlantic Oscillation

Lorenzo‐Lacruz

Vicente‐Serrano

López‐Moreno

et al. 2011

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…It is possible that some of these measures might not have been needed had an effective seasonal hydrological forecast been available, as such forecasts can potentially provide an estimate of river flows and water resources for a lead time of several months ahead. A number of authors have explored the potential for seasonal hydrological forecasting in the UK, with many investigating statistical relationships between large‐scale North Atlantic climate indices (such as the North Atlantic Oscillation) and seasonal rainfall or river flow anomalies (Lavers et al ., ,; Macgregor and Phillips, ; Svensson and Prudhomme, ; Wedgebrow et al ., ; Wilby, ). Lavers () is one of the few to have explored direct use of coupled ocean–atmosphere model output with hydrological models for seasonal hydrological forecasting in the UK, perhaps because of the perceived lack of skill in seasonal weather forecasts in extratropical regions beyond a lead time of 1 month (Lavers et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Developing a large‐scale water‐balance approach to seasonal forecasting: application to the 2012 drought in Britain

Bell

Davies

Kay

et al. 2013

Hydrological Processes

View full text Add to dashboard Cite

Abstract:Seasonal hydrological forecasts, or outlooks, can potentially provide water managers with estimates of river flows and water resources for a lead-time of several months ahead. An experimental modelling tool for national hydrological outlooks has been developed which combines a hydrological model estimate of subsurface water storage across Britain with a range of seasonal rainfall forecasts to provide estimates of area-wide hydrological conditions up to a few months ahead. The link is made between a deficit in subsurface water storage and a requirement for additional rainfall over subsequent months to enable subsurface water storage and river flow to return to mean monthly values. The new scheme is assessed over a recent period which includes the termination of the drought that affected much of Britain in the first few months of 2012. An illustration is provided of its use to obtain return-period estimates of the "rainfall required" to ease drought conditions; these are well in excess of 200 years for several regions of the country, for termination within a month of 1 April 2012, and still exceed 40 years for termination within three months. National maps of subsurface water storage anomaly show for the first time the current spatial variability of drought severity. They can also be used to provide an indication of how a drought situation might develop in the next few months given a range of possible future rainfall scenarios.

show abstract

“…Positive and negative NAO phases particularly affect runoff behaviour, dry and wet periods (Lavers et al . ), which particularly affects TOC transport. Our results suggest that NAO has a greater effect on spring and autumn TOC fluxes in the River Oulujoki system and TOC transport from tributaries and areas near the main channel.…”

Section: Discussionmentioning

confidence: 99%

Atmospheric circulation patterns influencing variations in organic carbon fluxes in the River Oulujoki, Finland

Marttila

Irannezhad

Saukkoriipi

2015

Water & Environment J

View full text Add to dashboard Cite

Atmospheric circulation generally influences regional climate variability and thereby controls catchment hydrology and consequently transport of elements in natural riverine systems. This study examined dependencies between total organic carbon (TOC) variability in the River Oulujoki (Finland) during 1963-2011 and prominent atmospheric circulation patterns (ACPs), which manifest natural climatic conditions over Finland and control hydrological processes in the river catchment. North Atlantic Oscillation, Scandinavia, East Atlantic and East Atlantic/West Russia patterns were statistically significant ACPs affecting variations in TOC export at River Oulujoki lower basin area. In the River Oulujoki, TOC export was largely controlled by changes in TOC fluxes generated from tributaries of river and near areas to its main channel. Besides, runoff from Lake Ouluj€ arvi slightly influenced TOC export variability in the River Oulujoki. Understanding such responses of TOC fluxes to ACPs is a useful tool for sustainable water resources planning and management on regional and local scales.

show abstract

Large‐scale climatic influences on precipitation and discharge for a British river basin

Cited by 12 publications

References 24 publications

The response of Iberian rivers to the North Atlantic Oscillation

The response of Iberian rivers to the North Atlantic Oscillation

Developing a large‐scale water‐balance approach to seasonal forecasting: application to the 2012 drought in Britain

Atmospheric circulation patterns influencing variations in organic carbon fluxes in the River Oulujoki, Finland

Contact Info

Product

Resources

About