Annual runoff estimation—an example of karstic aquifers in the transboundary region of Croatia and Slovenia

Horvat, Bojana; Rubinić, Josip

doi:10.1623/hysj.51.2.314

Cited by 18 publications

(13 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The reliability of this empirical model, was also confirmed by studies in the Mediterranean (Santoro, 1970) and European areas (Parajka and Szolgay, 1998;Horvat and Rubinic, 2006) as well as through mean annual hydrological budgets carried out for principal aquifers of southern Italy (Boni et al, 1982;Celico, 1983;Allocca et al, 2007a):…”

Section: Hydrological Datasupporting

confidence: 59%

“…The proposed approach highlights another complementary aspect related to the estimation of annual runoff along slope areas, which is particularly relevant for the management of surficial water resources. The calculated mean ARC values varying from 36 to 50 % can be approximately compared with those determined for Dinaric karst aquifers (Horvat and Rubinic, 2006) and some river basins of southern continental Italy (Del Giudice et al, 2013).…”

Section: Discussionmentioning

confidence: 78%

“…This estimation was considered useful for a comprehensive understanding of the hydrological role of karst aquifers, and thus also for taking into account a general assessment of runoff formation along karst slopes (Horvat and Rubinic, 2006) by estimating the annual runoff coefficient (ARC), which is the complementary part of the AGRC:…”

Section: Estimation Of Annual Groundwater Recharge Coefficientmentioning

confidence: 99%

See 2 more Smart Citations

Estimating annual groundwater recharge coefficient for karst aquifers of the southern Apennines (Italy)

Allocca

Manna

Vita

2014

Hydrol. Earth Syst. Sci.

102

View full text Add to dashboard Cite

Abstract.To assess the mean annual groundwater recharge of the karst aquifers in the southern Apennines (Italy), the estimation of the mean annual groundwater recharge coefficient (AGRC) was conducted by means of an integrated approach based on hydrogeological, hydrological, geomorphological, land use and soil cover analyses. Starting from the hydrological budget equation, the coefficient was conceived as the ratio between the net groundwater outflow and the precipitation minus actual evapotranspiration (P − ETR) for a karst aquifer. A large part of the southern Apennines, which is covered by a meteorological network containing 40 principal karst aquifers, was studied. Using precipitation and air temperature time series gathered through monitoring stations operating in the period 1926-2012, the mean annual P − ETR was estimated, and its distribution was modelled at a regional scale by considering the orographic barrier and rain shadow effects of the Apennine chain, as well as the altitudinal control. Four sample karst aquifers with available long spring discharge time series were identified for estimating the AGRC. The resulting values were correlated with other parameters that control groundwater recharge, such as the extension of outcropping karst rocks, morphological settings, land use and covering soil type. A multiple linear regression between the AGRC, lithology and the summit plateau and endorheic areas was found. This empirical model was used to assess the AGRC and mean annual groundwater recharge in other regional karst aquifers. The coefficient was calculated as ranging between 50 and 79 %, thus being comparable with other similar estimations carried out for karst aquifers of European and Mediterranean countries. The mean annual groundwater recharge for karst aquifers of the southern Apennines was assessed by these characterizations and validated by a comparison with available groundwater outflow measurements.These results represent a deeper understanding of an aspect of groundwater hydrology in karst aquifers which is fundamental for the formulation of appropriate management models of groundwater resources at a regional scale, also taking into account mitigation strategies for climate change impacts. Finally, the proposed hydrological characterizations are also supposed to be useful for the assessment of mean annual runoff over carbonate mountains, which is another important topic concerning water management in the southern Apennines.

show abstract

Section: Hydrological Datasupporting

confidence: 59%

Section: Discussionmentioning

confidence: 78%

Section: Estimation Of Annual Groundwater Recharge Coefficientmentioning

confidence: 99%

See 1 more Smart Citation

Estimating annual groundwater recharge coefficient for karst aquifers of the southern Apennines (Italy)

Allocca

Manna

Vita

2014

Hydrol. Earth Syst. Sci.

102

View full text Add to dashboard Cite

show abstract

“…Ivan, Bulaž, and Gradole springs are located in Northern Istria inside the Mirna River catchment area ( Figure 1). Average annual rainfall in the area is approximately 1238 mm and the average annual temperature is 11.3 °C [18]. All three springs are used for water supply within the water utility of Istria system with water from Butoniga reservoir [19].…”

Section: Study Areas Descriptionmentioning

confidence: 99%

Estimation of Pollutant Load in Drinking Water Protection Areas of Springs Sv. Ivan, Bulaž, and Gradole

Nemarnik¹,

Volf

Karleuša

2016

e-GFOS

View full text Add to dashboard Cite

Abstract:In this paper, the estimation of pollutant load within the drinking water protection areas (DWPA) of springs Sv. Ivan, Bulaž, and Gradole in Northern Istria (Croatia) is presented. To estimate the pollution load, the spreadsheet tool for estimating pollutant load (STEPL) model was used. STEPL calculates loads of organic pollutants, nutrients, and suspended solids. For each analyzed spring total, specific and pollutant loads by each analyzed category are calculated. The results show that the greatest loads are caused by human activities. In addition, for the purpose of the analysis, two additional future scenarios are introduced; one describes the situation after the implementation of the first phase of the Istrian water protection system project, and the other that describes a possible future state where each agglomeration of over 100 inhabitants within the protected areas has an adequate wastewater treatment plant (WWTP).Keywords: springs Sv. Ivan, Bulaž, Gradole, pollutant load estimation, STEPL, drinking water protected areas PROCJENA TERETA ONEČIŠĆENJA U ZONAMA SANITARNE ZAŠTITE IZVORIŠTA SV. IVAN, BULAŽ I GRADOLE Sažetak: U radu je prikazana procjena tereta onečišćenja unutar zona sanitarne zaštite izvora Sv. Ivan, Bulaž i Gradole, koji se nalaze na sjevernom dijelu Istre (Hrvatska). U svrhu procjene tereta onečišćenja primijenjen je STEPL model koji izračunava opterećenja organskim zagađivačima, hranjivim te suspendiranim tvarima. Za svaki analizirani izvor izračunani su ukupni, specifični te tereti onečišćenja po pojedinim kategorijama, iz kojih se može vidjeti da su najveća opterećenja uzrokovana ljudskim aktivnostima. Također, za potrebe analize izrađena su i dva dodatna scenarija, prvi koji opisuje stanje nakon realizacije prve faze projekta istarskog vodozaštitnog sustava, te drugi scenarij koji opisuje moguće buduće stanje da se za svako naselje iznad 100 stanovnika unutar zona sanitarne zaštite izvede odgovarajući uređaj za pročišćavanje otpadnih voda.

show abstract

“…Some range from a small drainage basin, as in this study (11 km 2 ), to considerably larger areas like the 618 km 2 explored by Shuster et al (2003). However, as was the focus of a paper by Hamilton-Smith (2006) and reiterated by Horvat and Rubinic (2006), the start of a quality water budget begins with the accurate delineation of the total catchment area. Despite variations in project size, scope, and region of study, two questions persist in water budget analysis: What is the best way to measure evaporation, and what is the error in such estimates?…”

Section: Introductionmentioning

confidence: 99%

Sinkholes and a Disappearing Lake: Victory Lake Case Study

Jovanelly¹

2014

JCKS

View full text Add to dashboard Cite

Human-induced sinkhole collapse can result in drastic changes to landscape aesthetics and present challenges to land managers seeking to determine the plausibility of restoration, the amount of financial investment needed, and the long-term sustainability of tampering with karstic environments. Alteration of groundwater flow in a karstic environment expedited the formation of large sinkholes in the southern end of man-made Victory Lake, causing it to drain immediately. Soon after the lake emptied in 1986, two unsuccessful attempts were made to restore the 13 ha (32 ac) lake. The sinkholes formed in the southern basin were completely in-filled, eliminating 3 ha (8 ac) of lake basin and significantly altering the original lake morphology. Some twenty-seven years later, Victory Lake is holding some water in the shallow basin at the northern end and would primarily be classified as a marshy wetland. This study was initiated to investigate the current relationship between the groundwater and surface water at the lake's altered basin to determine the potential for it to be restored fully or partially as a recreational focal point of the Berry College campus. Over the course of one year we measured the inputs (stream flow and precipitation) and outputs (evaporation and surface water outflow) of the lake system. We were able to conclude that groundwater is not likely contributing to the lake, based on inorganic and stable isotope ( 18 O and 2 H) water chemistry analysis and the deep position of the groundwater table relative to the lake bottom. From the results of dye-tracer tests conducted in the lake, we concluded that basin water may not be escaping downward at measurable rates because of its clay bottom. Our overall water-budget analysis confirms an adequate water volume entering by rainfall and ephemeral stream inflow; nearly 90% of the water leaves Victory Lake through surface-water outflow. Water loss through evapotranspiration during spring and summer months overcomes the gain accomplished during wetter and cooler months, particularly February. Through an investigation of water level records kept for campus monitoring wells from 1998 through 2012 we confirm that the groundwater table has stabilized and the immediate threat of new sinkhole formation is minimal. Restoration of Victory Lake to its original picturesque meeting spot may be possible through creative engineering strategies and project financing. However, we question the longevity of managing a karstic environment and consider the potential risks to infrastructure, groundwater, and human health should lake bottom failure occur again on campus.

show abstract

Annual runoff estimation—an example of karstic aquifers in the transboundary region of Croatia and Slovenia

Cited by 18 publications

References 1 publication

Estimating annual groundwater recharge coefficient for karst aquifers of the southern Apennines (Italy)

Estimating annual groundwater recharge coefficient for karst aquifers of the southern Apennines (Italy)

Estimation of Pollutant Load in Drinking Water Protection Areas of Springs Sv. Ivan, Bulaž, and Gradole

Sinkholes and a Disappearing Lake: Victory Lake Case Study

Contact Info

Product

Resources

About