Naslov
Impact Assessment and Adaptation to Climate Change: Hydrology and Water Resources

Autori
Bonacci, Ognjen ; Gereš, Dragutin

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
The First National Communication of the Republic of Croatia to the UN Framework Convention on Climate Change ( UNFCCC )

Urednik/ci
Jelavić, Vladimir

Izdavač
Ministarstvo zaštite okoliša, prostornog uređenja i graditeljstva Republike Hrvatske

Grad
Zagreb

Godina
2001

Raspon stranica
175-189

ISBN
953-6793-16-4

Ključne riječi
climate change, hydrology, water resources, Croatia

Sažetak
Regional models of air temperature variations were designed in accordance with the global climate scenario, which postulates a doubling of CO2 emission into the atmosphere. These models show a temperature increase over the teritory of Croatia ranging from 2.0 to 2.8 ° C in the coastal and mountainous area, and from 2.4 to 3.2 °C in the lowland areas of the country.// Analyses of the historical water levels in Croatia's inland watersheds ( the Sava and Drava ), and lake Vrana in the coastal area over the period of 75 to 100 years, show that water levels have varied considerably between 1926 and 1975. Their amplitude has declined in the last few decades. Furthermore, in the past two decades there is a decreasing trend in median and minimum annual water levels. The analysis of meteorological and hydrology data shows that the fall in water levels is commensurate with the increase in temperature. A similar relationship can be seen between precipitation and flow rates. It can subsequently be argued that hydrology reflects the change of climate patterns and that climate change will have a significant impact on water resources and their availability in the future.//Based on the existing climate change forecast for Croatia, runoffs in the typical catchment areas of western Croatia and in the region of Dinaric karst could be reduced by 10 to 20 percent in relation to the present situation. In the eastern part of Croatia, these changes are expected to be below 10 percent. The possible decrease in runoffs and its redistribution during the year will result in water shortages during the summer months. The coastal area is especially sensitive to this state of affairs becouse temporary shortages of water occur in this area today during the tourist season and at times of high water demand.The risk of fire will also be heightened. // Possible changes in groundwater regimes and surface water regimes by virtue of possible decreases in groundwater inflows should be taken into account when planning water management works, such as the construction of multipurpose channels, irrigation systems or hydro-electric power plants in the Croatian interior.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA