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Sustainable Management of Groundwater Resources in the Context of Climate Change Impact Assessment - Examples from Croatian Karst areas (CROSBI ID 665172)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa

Karleuša, Barbara, Rubinić, Josip, Radišić, Maja, Terzić, Josip, Lukač Reberski, Jasmina Sustainable Management of Groundwater Resources in the Context of Climate Change Impact Assessment - Examples from Croatian Karst areas // Proceedings of 44th Annual congress of the International Association of Hydrogeologists. 2017. str. ---

Podaci o odgovornosti

Karleuša, Barbara, Rubinić, Josip, Radišić, Maja, Terzić, Josip, Lukač Reberski, Jasmina

engleski

Sustainable Management of Groundwater Resources in the Context of Climate Change Impact Assessment - Examples from Croatian Karst areas

Karst springs are characterized by a pronounced variability in flow and large sensitivity to the occurrence of long dry periods when their yield assumes extremely low values. This is especially important if these water resources are used for water supply. In this case the sustainable use of these water resources implies the need to estimate possible changes in water regime due to the impact of climate change. This kind of modelling and analyses of water balance was conducted for two pilot areas in the karstic part of Croatia within the DRINKADRIA project. The first pilot area is the river Mirna basin, where water supply sources Gradole, Sv. Ivan and Bulaž are analysed. Source Gradole is used for the water supply of a part of Istrian Region but also, in summer time, for the water supply of the Slovenian coast. The second pilot area is the water supply source Prud in river Neretva catchment. Spring Prud is located in Croatia, but only few hundred meters from the border with Bosnia and Herzegovina where almost all of its catchment is located. The paper presents the climate change impact assessment on these spring, as well as the overview of the most important results obtained. Three climate models (RegCM3, Aladin and Promes) were used for modelling the temperature and precipitation changes in the future (2021-2050) on pilot areas. Although there are some differences in their results (Promes climate model estimates the highest changes), all three models predict the air temperature increase and stagnation of precipitations. This causes the significant decrease in water balance of analysed springs that was estimated with hydrologic modelling. This decrease is obvious on the level of mean annual flow (up to 35%, for Promes input data), and even more emphasized on the level of minimum mean monthly flow (up to 60%, for Promes input data). Estimated results, as well as present needs for water in pilot areas emphasize the need to find additional measures to adapt to climate change, and find alternative solutions for optimal water management of analysed karst springs. Such modelling of water balance provides a prerequisite for the sustainable management of water resources in the possible upcoming situations, the occurrence of critical hydrological conditions. This model can be applied for similar assessments even in other localities.

karst springs, climate change, water supply, water balance, Croatia

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Podaci o prilogu

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2017.

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objavljeno

Podaci o matičnoj publikaciji

Proceedings of 44th Annual congress of the International Association of Hydrogeologists

Podaci o skupu

44th Annual Congress of the International Association of Hydrogeologists

predavanje

25.09.2017-29.09.2017

Dubrovnik, Hrvatska

Povezanost rada

Geologija, Građevinarstvo