| publications-751 |
PEER REVIEWED ARTICLE |
2015 |
Veit Blauhut , Lukas Gudmundsson , Kerstin Stahl |
Towards pan-European drought risk maps: quantifying the link between drought indices and reported drought impacts |
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10.1088/1748-9326/10/1/014008 |
Hydrological modeling |
River Basins |
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No abstract available |
282769 |
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| publications-752 |
PEER REVIEWED ARTICLE |
2012 |
D. Camuffo , C. Bertolin , N. Diodato , C. Cocheo , M. Barriendos , F. Dominguez-Castro , E. Garnier , M. J. Alcoforado , M. F. Nunes |
Western Mediterranean precipitation over the last 300Â years from instrumental observations |
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10.1007/s10584-012-0539-9 |
Simulation & Modeling |
Uncategorized |
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No abstract available |
282769 |
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| publications-753 |
PEER REVIEWED ARTICLE |
2014 |
L Gudmundsson , F C Rego , M Rocha , S I Seneviratne |
Predicting above normal wildfire activity in southern Europe as a function of meteorological drought |
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10.1088/1748-9326/9/8/084008 |
Uncategorized |
Uncategorized |
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No abstract available |
282769 |
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| publications-754 |
PEER REVIEWED ARTICLE |
2014 |
A. K. Fleig , L. M. Tallaksen , P. James , H. Hisdal , K. Stahl |
Attribution of European precipitation and temperature trends to changes in circulation types |
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10.5194/hessd-11-12799-2014 |
Simulation & Modeling |
Precipitation & Ecological Systems |
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Abstract. Surface climate in Europe is changing and patterns in trends have been found to vary at sub-seasonal scales. This study aims to contribute to a better understanding of these changes across space and time by analysing to what degree observed climatic trends can be attributed to changes in atmospheric circulation. The relative importance of circulation changes (i.e. trends in circulation type frequencies) as opposed to trends in the hydrothermal properties of circulation types (within-type trends) on precipitation and temperature trends in Europe is assessed on a monthly basis. Gridded precipitation and temperature data originate from the Watch Forcing Dataset and circulation types (CTs) are defined by the objective SynopVis Grosswetterlagen. Relatively high influence of circulation changes are found from January to March, contributing to wetting trends in northern Europe and drying in the South. Simultaneously, in particular dry CTs get warmer first in south-western Europe in November/December and affecting most of Europe in March/April. Strong influence of circulation changes is again found in June and August. In general, circulation influence affects climate trends in north-western Europe stronger than the South-East. The exact locations of the strongest influence of circulation changes vary with time of the year and to some degree between precipitation and temperature. Throughout the year and across the whole of Europe, precipitation and temperature trends are caused by a combination of circulation changes and within-type changes with their relative influence varying between regions, months and climate variables. |
282769 |
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| publications-755 |
PEER REVIEWED ARTICLE |
2014 |
Richard J. Harding , Graham P. Weedon , Henny A.J. van Lanen , Douglas B. Clark |
The future for global water assessment |
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10.1016/j.jhydrol.2014.05.014 |
Simulation & Modeling |
Uncategorized |
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No abstract available |
282769 |
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| publications-756 |
PEER REVIEWED ARTICLE |
2012 |
D. Haro , J. Paredes , A. Solera , J. Andreu |
A Model for Solving the Optimal Water Allocation Problem in River Basins with Network Flow Programming When Introducing Non-Linearities |
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10.1007/s11269-012-0129-7 |
Simulation & Modeling |
River Basins |
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No abstract available |
282769 |
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| publications-757 |
PEER REVIEWED ARTICLE |
2014 |
David Haro , Abel Solera , Javier Paredes , JoaquĂn Andreu |
Methodology for Drought Risk Assessment in Within-year Regulated Reservoir Systems. Application to the Orbigo River System (Spain) |
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10.1007/s11269-014-0710-3 |
Uncategorized |
Precipitation & Ecological Systems |
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No abstract available |
282769 |
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| publications-758 |
PEER REVIEWED ARTICLE |
2013 |
Daniel G. Kingston , Anne K. Fleig , Lena M. Tallaksen , David M. Hannah |
Ocean–Atmosphere Forcing of Summer Streamflow Drought in Great Britain |
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10.1175/jhm-d-11-0100.1 |
Uncategorized |
Uncategorized |
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Abstract Droughts are high-impact events that have substantial implications for both human and natural systems. As such, improved understanding of the hydroclimatological processes involved in drought development is a major scientific imperative of direct practical relevance. To address this research need, this paper investigates the chain of processes linking antecedent ocean–atmosphere variation to summer streamflow drought in Great Britain. Analyses are structured around four distinct drought regions (defined using hierarchical cluster analysis) for the period 1964–2001. Droughts were identified using a novel regional drought area index. Composite analysis of monthly sea surface temperature (SST) prior to drought onset reveals a horseshoe- or tripole-shaped pattern of North Atlantic SST anomalies that is similar to patterns of SST anomalies associated with the North Atlantic Oscillation (NAO). Patterns in geopotential height, wind, moisture vapor flux, and precipitation prior to drought onset support the influence of the NAO but also demonstrate that the atmospheric bridge linking North Atlantic SST to drought development is too complex to be described solely by indices of the NAO. In revealing new information on the chain of processes leading to the development of hydrological drought in Great Britain, this paper has the potential to inform drought-forecasting research and so improve drought preparedness and management. |
282769 |
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| publications-759 |
PEER REVIEWED ARTICLE |
2015 |
Daniel G. Kingston , James H. Stagge , Lena M. Tallaksen , David M. Hannah |
European-Scale Drought: Understanding Connections between Atmospheric Circulation and Meteorological Drought Indices |
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10.1175/jcli-d-14-00001.1 |
Uncategorized |
Uncategorized |
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Abstract Quantification of large-scale climate drivers of drought is necessary to understand better and manage these spatially extensive and often prolonged natural hazards. Here, this issue is advanced at the continental scale for Europe. Drought events are identified using two indices—the 6-month cumulative standardized precipitation and standardized precipitation evapotranspiration indices (SPI-6 and SPEI-6, respectively)—both calculated using the gridded Water and Global Change (WATCH) Forcing Dataset for 1958–2001. Correlation of monthly time series of the percentage of European area in drought with geopotential height for 1958–2001 indicates that a weakening of the prevailing westerly circulation is associated with drought onset. Such conditions are linked to variations in the eastern Atlantic/western Russia (EA/WR) and North Atlantic Oscillation (NAO) atmospheric circulation patterns. Event-based analysis of the most widespread European droughts reveals that a higher number are identified by the SPEI-6 than the SPI-6, with SPEI-6 drought events showing a greater variety of spatial locations and start dates. Atmospheric circulation drivers also vary between the two types of events, with EA/WR-type variation associated most frequently with SPEI-6 drought, and the NAO associated with SPI-6. This distinction reflects the sensitivity of these drought indices to the underlying drought type (meteorological water balance versus precipitation, respectively) and associated differences in their timing and location (Europe-wide year round versus northern Europe winter). As such, this study provides new insight into both the identification of Europe-wide drought and patterns of large-scale climate variation associated with two different drought indices. |
282769 |
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| publications-760 |
PEER REVIEWED ARTICLE |
2013 |
N. Lerma , J. Paredes-Arquiola , J. Andreu , A. Solera |
Development of operating rules for a complex multi-reservoir system by coupling genetic algorithms and network optimization |
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10.1080/02626667.2013.779777 |
Uncategorized |
Uncategorized |
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No abstract available |
282769 |
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