Naslov
Historical and Future Trends of Groundwater Levels – 30-year Forecast for Zagreb and Samobor-Zaprešić Aquifers, Croatia

Autori
Posavec, Kristijan ; Vujević, Mate ; Kolačević, Renata

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, stručni

Izvornik
44th Annual Congress of the International Association of Hydrogeologists (IAH) "Groundwater Heritage and Sustainability" - book of abstracts / Posavec, Kristijan ; Marković, Tamara - Zagreb : International Association of Hydrogeologists, 2017, 13-13

ISBN
978-953-6907-61-8

Skup
44th Annual Congress of the International Association of Hydrogeologists (IAH) "Groundwater Heritage and Sustainability"

Mjesto i datum
Dubrovnik, Hrvatska, 25.09.2017. - 29.09.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
time series ; groundwater level ; trend ; water supply

Sažetak
Historical trends of groundwater levels were analysed for Zagreb and Samobor-Zaprešić aquifers, Croatia. Trend analysis was conducted on 41 observation wells of Zagreb aquifer and 19 observation wells of Samobor-Zaprešić aquifer, as shown on Fig. 1. On the area of Samobor-Zaprešić aquifer groundwater level time series were analysed for entire period of monitoring, i.e. from 1967 to 2015. Due to construction of weir TE-TO on the Sava river (last major reconstruction occurred in the late 1993), which affected the aquifer recharge/discharge processes, groundwater level time series on the area of Zagreb aquifer were analysed from 1994 to 2015. Calculated trends were extrapolated for the period of next 30 years, i.e. up to year 2045, and can be considered as probable if river Sava is not regulated in future. Continuous decline of groundwater levels cause decrease in aquifer groundwater reserves, which are defined as strategic resource of groundwater in Croatia within the Croatian Waters’ Water Management Strategy, the main document for water management in Croatia. According to this document, water reserves are the primary issue of the national sovereignty and interests. Therefore, stopping of negative trend and possible raising of groundwater levels would be in line with the Croatian Water Management Strategy as well as with the EU Water Framework Directive, but also responsible from the aspect of strategic value of ground water as a vital resource whose value will surely raise in future both in local and global scale.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA