European Climate Change Adaptation Conference 2013 Integrating Climate into Action March 18-20, 2013, Hamburg, Germany ASSESSMENT OF CLIMATE CHANGE IMPACTS ON IRRIGATION SYSTEMS IN SOUTHERN PORTUGAL ROLIM J., TEIXEIRA J., CATALÃO J., SHAHIDIAN S. Department of Sciences and Biosystems Engineering, School of Agronomy (ISA), Technical University of Lisbon, Portugal; [email protected], [email protected]
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European Climate Change Adaptation Conference 2013
Integrating Climate into Action
March 18-20, 2013, Hamburg, Germany
ASSESSMENT OF CLIMATE CHANGE IMPACTSON IRRIGATION SYSTEMS IN SOUTHERNPORTUGAL
ROLIM J., TEIXEIRA J., CATALÃO J., SHAHIDIAN S.Department of Sciences and Biosystems Engineering, School of Agronomy (ISA), Technical University of Lisbon, Portugal; [email protected], [email protected]
Introduction
� For the south of Portugal is projected along the XXI century a rise in air temperature and a reduction in annual rainfall;
� Increase of the frequency and severity of extreme events (droughts, heat waves, etc.).(droughts, heat waves, etc.).
� A study was conducted on the impacts of climate change on irrigated agriculture, in the Alentejo region;
� water requirements, irrigation requirements, water deficit;
� Irrigation systems design;� Impacts on systems dimensions; definition of safety margins;
Methodology I
� The methodology used is based on the following software tools:� IScenarios – Information system that manages the climate
change scenarios data;
� Interpolador – Software for spatial interpolation of � Interpolador – Software for spatial interpolation of meteorological variables;
� IrrigRotation – Soil water balance model for crops rotations;
� Enrolador – Software program for the design and simulation of travelling gun irrigation systems;
Methodology II
IScenarios
Weather StationsNetwork
Climate ModelsHadRM3P;HIRHAMh;HIRHAMhh;
Climate Scenarios(Reference, A2, B2)
Climate Anomalies
Historical Data Series:Temperature;Wind;Radiation;Relative Humidity;Precipitation;
�Schematic representation of the methodology;
IrrigRotation
FrequencyAnalysis
Interpolador
GISSoils Map
Precipitation;
Future Climate Series
Interpolador
Enrolador
Case studies and base data I
� Meteorological data:� Observed data,1961-90 period (daily):
� Évora;
� Beja.
� Climate change scenarios, 2071-2100 period
SPAIN
FRANCE
PORTUGAL
MEDITERRANEANSEA
ATLANTICOCEAN
� Climate change scenarios, 2071-2100 period (monthly), PRUDENCE proj.:
� HadRM3P (scenarios A2 and B2), 50 km;
� HIRHAMh (scenario A2), 25 km;
� HIRHAMhh (scenario A2), 12 km.
� Meteorological variables considered:� Temperature, relative humidity, wind speed, solar
radiation, precipitation.
Alentejo
Case studies and base data II
� Soils:� Évora: Pmg mediterranean soil;
� Beja: Bpc clay soil.
� Beja � Évora
Case studies and base data III
� The simulations were performed for two case studies:� Évora (Évora weather station + Pmg soils);
� A considerable increase in the irrigation requirements;
� Sharp increase in water deficit of the rainfed crops;
� Crops rotations showed the ability to manage the soil � Crops rotations showed the ability to manage the soil water content;� Reduction of the rainfed crops water deficit, when inserted
in irrigated crops rotations;
� Irrigation systems design;� Increase in the design peak flows and in the pipes
diameters.
Thank you
Acknowledgements:
� This work was funded by the Fundação para a Ciência ea Tecnologia (FCT) Doctoral Granta Tecnologia (FCT) Doctoral GrantSFRH/BD/27743/2006 and by the Fundação para aCiência e a Tecnologia (FCT) research project PTDC/AAC-AMB/113639/2009;
� Climate change data have been provided through thePRUDENCE data archive (EVK2-CT2001-00132);