- Type of paper
: Paper in journal
Title: On the geoelectro-geohydraulic analogy research project in
the river plains of northern Croatia
- Authors:
- Šarin, Ante (46130)
- Brkić, Željka (189785)
Journal: Geologia Croatica
Number: 2
ISSN: 1330-030X
Volume: 46
Year: 1993
Pages: from 307 to 311
Language: engleski
Summary: The paper presents the initial thoughts, hypotheses
andapproaches of a research project. Project is based on
theelectro-hydraulic analogy in the case of loose clastics saturatedwith
fresh groundwater. New approximate geohydraulic parametershave been
introduced: the indices of hydraulic conductivity,transmissivity and
leakage, calculated from resistivity soundingdata. This method can be
applied for low-costly solving ofseveral important water management
problems.
Keywords: Electro-hydraulic analogy, hydraulic conductivity index, transmissivity index, leakage index, alluvial aquifer, covering aquitard, large river plains, northern Croatia
- Type of paper
: Paper in journal
Title: Identification of Nitrate Origins in Groundwaters in the
Region of Varaždin
- Authors:
- Gjetvaj, Goran (167632)
Journal: Hrvatske vode
Number: 4
ISSN: 1330-1144
Volume: 1
Year: 1993
Pages: from 247 to 252
Language: hrvatski
Summary: The water supply in the town and the region Varaždin is
based on the use of groundwater as the least polluted natural resource.
Chemical analysis of groundwater samples indicates the increased nitrate
concentration. In order to indentify the origin of nitrates and assess the
posibility of improvement of the present situation, the numeric model of
the pollution flow and discharge has been worked out.
Keywords: Groundwater, nitrate, discharge of substances, the Drava alluvium, water supply
- Type of paper
: Paper in journal
Title: Aims of the Zagrebian Workshop on the Water Pollution and
Protection in Agricultural Practice
- Authors:
- Racz, Zoltan
- Šarin, Ante (46130)
- Vukelić, Zvonimir
Journal: Hrvatske vode
ISSN: 1330-1144
Volume: in p
Language: engleski
- Type of paper
: Paper in journal
Title: Present Quality of Surface and Groundwater in Croatia
- Authors:
- Vidaček, Željko
- Drevenkar, Vlasta
- Prpić, Mare
- Raspor, Biserka
- Urumović, Kosta (51212)
- Dadić, Željko
Journal: Hrvatske vode
ISSN: 1330-1144
Volume: in p
Language: engleski
Summary: The paper describes land and water resources of Croatia,
pollution sources and causes - waste water, use of fertilizers and
pesticides. The surface water and groundwater monitoring is analyzed and
their contamination with nitrates, phosphates, pesticides and some toxic
metals. Generally, in Croatia only the surface waters are systematically
monitored, while the groundwater quality is monitored only in the existing
well fields supplying the public water distribution systems or within the
frameworkof the hydromelioration systems control. The data on agricultural
pollution sources and causes are either unavailable or limited. According
to the available data, with local exceptions, the global pollution of the
surface and groundwaters is not alarming. The urgent need id underlined for
development of integrated water quality monitoring systems for the Black
Sea and Adriatic Sea catchment, with a special program of the territorial
sea quality control and interstate programs for border streamflows.
Keywords: Water, nitrates, phosphates, metals, pesticides, pollution, protection, monitoring
- Type of paper
: Paper in proceedings
Title: Mining potential of the formations of quarts sands in the
Republic of Croatia
- Authors:
- Krkalo, Eugen
- Galović, Ivan (13004)
- Dravec - Braun, Jasna
Proceedings title: Simpozij - Industrija nemetala u obnovi i razvoju R. Hrvatske - Zbornik radova
Language: hrvatski
Place: Zagreb
Year: 1992
Pages: from 29 to 39
Meeting: Industrija nemetala u obnovi i razvoju Republike Hrvatske (Simpozij)
Held: from 04/23/92 to 04/24/92
Summary: Very pure quartz sands deposits occur in Lower
Cretaceousdeposits in the karst region and in the Neogene and
Quaternarydeposits of northern Croatia. The highest economic potential
havethe deposits in Moslavina, Slavonia and Istria; partly also inHrvatsko
Zagorje, Bania and Kordun.
- Type of paper
: Paper in proceedings
Title: Analysis of aquifer test data on the well B-3 in
Bartolovec using numerical model
- Authors:
- Gjetvaj, Goran (167632)
Proceedings title: Research on hydraulic engineering - Proceedings
Language: engleski
Place: Zagreb
Year: 1992
Pages: from 117 to 123
Meeting: Research on hydraulic engineering (Conference)
Held: from 09/07/92 to 09/09/92
Summary: A numerical model for analyzing pumping test data is used
toestimate the transmissivity and storage coefficient. The methodis based
on a discretization of space and time. Equations createdfor each space
increment are solved applying the finitedifference technique. The developed
model is applied on aparticular problem to determine aquifer parameters.
Keywords: Groundwater, identification of parameters, pollution transport, numerical model
- Type of paper
: Paper in proceedings
Title: On the approach of the estimate of groundwater recharge in
the area of Ravnik-Kutina
- Authors:
- Brkić, Željka (189785)
- Editors
- Vlahović, Igor
- Velić, Ivo
- Šparica, Marko
Proceedings title: 1. Hrvatski geološki kongres - Zbornik radova (Proceedings)
Language: hrvatski
Place: Zagreb
Year: 1995
ISBN/ISSN: 953-96520-5-7
Pages: from 131 to 135
Meeting: 1. Hrvatski geološki kongres
Held: from 10/18/95 to 10/21/95
Summary: The roof of tapped aquifer in the area of Ravnik-Kutina is
composed of silty and clayey sediments within which the interlayers and
lenses of sand occur. The influence of hydrogeological parameters of these
deposits (vertical hydraulic conductivity and specific yield), on the
development of depression cone is very small under a relatively
short-lasted test pumping. This phenomenon can result in wrong conclusions
on the aquifer boundary conditions. The explorations on the true boundary
conditions of semiconfined aquifer, which was performed on the basis of a
long monitoring and a relatively intense extraction from the pumping site
Ravnik, showed that the leakage amount from semipermeable covering deposits
increases considerably during the first years of extraction.
Keywords: Semiconfined aquifer, semipermeable covering deposits, hydrogeological parameters, boundary conditions, groundwater recharge
- Type of paper
: Paper in proceedings
Title: Hydrogeological aspects of the use and vulnerability of
groundwater in northern Croatia
- Authors:
- Šarin, Ante (46130)
- Urumović, Kosta (51212)
- Mraz, Vinko (68994)
- Brkić, Željka (189785)
- Hlevnjak, Branko
- Editors
- Vlahović, Igor
- Velić, Ivo
- Šparica, Marko
Proceedings title: 1. Hrvatski geološki kongres - Zbornik radova (Proceedings)
Language: hrvatski
Place: Zagreb
Year: 1995
ISBN/ISSN: 953-96520-6-5
Pages: from 563 to 567
Meeting: 1. Hrvatski geološki kongres
Held: from 10/18/95 to 10/21/95
Summary: Northern or Pannonian Croatia has relatively suitable
hydrometorological and hydrogeological conditions for groundwater use. In
the largest part of this region, the precipitation infiltration is so high
that it enables - if only its plains are considered - four to six times
greater groundwater extraction than the actual one in the whole region. It
is necessary to mention also that 96% of the actual public water supply of
this region is based on groundwater.
Concerning its hydrogeological conditions, this entire region forms one
complex hydrogeological region - the Northern Croatian or Panonian
hydrogeological region. Within it, three hydrogeological provinces are
separated: low mountain massifs, hilly margin of mountain massifs and
plains.
Groundwater quality is, at least now, mainly suitable for public water
supply and irrigation. However, the groundwater protection has become and
will be ever more complex in large plains due to a high present and
potential concentration of urban, industrial, traffic and agriculture
sources of pollution. Besides, geohydraulic connections between the highest
yielding aquifer and already very polluted main rivers are extremely high.
Keywords: Hydrogeology of porous media, Groundwater use, Aquifer vulnerability
- Type of paper
: Paper in proceedings
Title: Can We decrease the Agricultural Pollution of Aquifers in
Northern Croatian Plains? (Review of an applied hydrogeology approach)
- Authors:
- Šarin, Ante (46130)
- Brkić, Željka (189785)
- Urumović, Kosta (51212)
- Mraz, Vinko (68994)
- Editors
- Marušić, Josip
Proceedings title: Poljoprivreda i gospodarenje vodama - Priopćenja (Proceedings)
Language: hrvatski
Place: Velika Gorica, Hrvatska
Year: 1994
Pages: from 449 to 460
Meeting: Znanstveni skup, Poljoprivreda i gospodarenje vodama
Held: from 11/17/94 to 11/19/94
Summary: A current research project, based on the electro-hydraulic
analogy, is shortly described. The basic geoelectric parameter,
resistivity, of loose sediments saturated with groundwater is used to
evaluate approximate values of important geohydraulic parameters. This
method cuts exploration costs considerably and can be applied to solving
several water management problems related to horizontal and vertical
groundwater flow. It refers particularly to groundwater quality protection
in areas of developed agriculture. Ten research pilot areas have been
established in the plains of northern Croatia and project results in five
of them are briefly discussed.
- Type of paper
: Paper in proceedings
Title: Groundwater Resources in Drava River Valley Quaternary
Aquifer and Possibility of Exploration
- Authors:
- Urumović, Kosta (51212)
- Hlevnjak, Branko
- Tadić, Zdenko
- Petrović, Mijo
- Editors
- Marušić, Josip
Proceedings title: Poljoprivreda i gospodarenje vodama - Priopćenja (Proceedings)
Language: hrvatski
Place: Velika Gorica, Hrvatska
Year: 1994
Pages: from 425 to 433
Meeting: Znanstveni skup, Poljoprivreda i gospodarenje vodama
Held: from 11/17/94 to 11/19/94
Summary: Qaternary deposits in wide area of Drava valley build's
aquifer with large amount of groundwater. Western part consist of sand and
gravel layers, while eastern part has predominantly uniform sand mixed with
layers of silt and clay. Natural replenishment of groundwater from
precipitation in the region is higher then groundwater use for public water
supply, but local distribution network and available groundwater budget in
some eastern parts is such that planned necessity exceeded local natural
groundwater recharge. In central and western parts of the region exist
surplus of available groundwater budget what can be interesting for public
water supply of neighboring deficit part and agricultural purposes.
Specially is important convenient relationship between rechargeable and
deposited store of groundwater and possibility of induced infiltration.
- Type of paper
: Paper in proceedings
Title: Groundwater Vulnerability Evaluation Approach in Northern
Croatian Plains. Case Study: Ravnik-Kutina
- Authors:
- Šarin, Ante (46130)
- Brkić, Željka (189785)
Proceedings title: XVIIth Conference of the Danube Countries ... - Sammelband/Proceedings
Language: engleski
Place: Budapest, Hungary
Year: 1994
Pages: from 753 to 758
Meeting: XVIIth Conference of the Danube Countries on Hydrological Forecasting and Hydrological Bases of Water Management
Held: from 09/05/94 to 09/09/94
Summary: The paper deals with one of the pilot areas of a current
applied hydrogeology research project based on the electro-hydraulic
analogy. In large river plains filled with loose clastic sediments and
saturated with groundwater of a commonly low salinity, the geohydraulic
parameters controlling the vertical groundwater flow through covering
aquitardsare substituted with their approximate "counterparts": hydraulic
conductivity index and leakage index. These means of the specific
electrical resistivity of those sediments. The map showing the distribution
of leakage index values may be used for a quick, low-cost evaluation of
groundwater vulnerability to heavy agricultural pollution by fertilizers
and pesticides.
- Type of paper
: Paper in proceedings
Title: Groundwater Budget of Qaternary Deposits in Drava Valley
in Croatia
- Authors:
- Urumović, Kosta (51212)
- Tadić, Zdenko
- Hlevnjak, Branko
- Petrović, Mijo
Proceedings title: XVIIth Conference of the Danube Countries ... - Sammelband/Proceedings
Language: engleski
Place: Budapest, Hungary
Year: 1994
Pages: from 499 to 504
Meeting: XVIIth Conference of the Danube Countries on Hydrological Forecasting and Hydrological Bases of Water Management
Held: from 09/05/94 to 09/09/94
Summary: The groundwater exploration within the drainage basin of
Drava river in Croatia is considerably increased. The main source for
public water supply is the aquifer formatted in heterogeneous Quaternary
deposits up to 300 m thick. This is spread over the whole area of wide
Drava valley with gently sloping toward east. The western parts consist of
gravel and sand with high permeability in contrast to eastern parts made up
predominantly of uniform sands alternated with clay and silt layers. The
infiltration from precipitation is the main source of natural recharge.
However, in condition of intensive groundwater extraction the inducing
recharge from Drava river flow could be realizable. Because of great
groundwater reservoir potential the aquifer has overall regional
significance. Nevertheless, there are some locations within the region
where consumer demands exceed local groundwater resources.
The paper presents groundwater analysis experience in Croatian part of
Drava valley with main characteristics of aquifer.
- Type of paper
: Paper in proceedings
Title:
- Authors:
- Gjetvaj, Goran (167632)
Proceedings title: Savjetovanje o vodoopskrbi Zagreba - Zbornik radova
Language: hrvatski
Place: Zagreb
Year: 1994
Pages: from 30 to 37
Meeting: Savjetovanje o vodoopskrbi Zagreba
Held: from 10/18/94 to 10/19/94
- Type of paper
: Paper in proceedings
Title: Sustainable Groundwater Use
- Authors:
- Tadić, Zdenko
- Urumović, Kosta (51212)
- Tadić, Lada
- Gereš, Dragutin
Proceedings title: XVIIth Conference of the Danube Countries... - Sammelband/Proceedings
Language: engleski
Place: Budapest, Hungary
Year: 1994
Pages: from 493 to 497
Meeting: XVIIth Conference of the Danube Countries on Hydrological Forecasting and Hydrological Bases of Water Management
Held: from 09/05/94 to 09/09/94
Summary: Sustainable development and use of groundwater resources
start to be imperative in the future. Priorities of public water supply in
groundwater extraction increase the conflict of interest with industry,
agriculture and other consumers. The concept of sustainable operation and
management of groundwater budget will be shown on the area of Osijek (925
km2) through effective rainfall and percolation process analysis. Effective
rainfall recharges aquitard and in the long term insure groundwater
extraction from leaky aquifer in the amount of 27.000.000 m3 per annum.
Results of measurement and mathematical models are briefly given.
- Type of paper
: Summary in proceedings
Title: Reflections on the hydrogeological risk; What needs and
can be done?
- Authors:
- Šarin, Ante (46130)
Proceedings title: Secondo convegno internazionale di geoidrologia - Abstracts
Language: engleski
Place: Firenze, Italy
Year: 1993
Pages: from 67 to 67
Meeting: Secundo convegno internazionale di geoidrologia
Held: from 11/29/93 to 12/03/93
Summary: The hydrogeological risk should concern not only the
protectionof groundwater quality, but also the conservation of itsresources
and protection against the harmful effects ofgroundwater. It is necessary
to define the subject and real aimof engagement (what we have to do and
what we can do), the meansby which the work is to be accomplished (ability
of the staff,technology, input data and financial means) and the methods
ofwork.
Keywords: Hydrogeological risk, groundwater protection, groundwater resources conservation, groundwater harm
- Type of paper
: M.A.
Title: Groundwater budget of the pumping site Ravnik-Kutina
Faculty: Prirodnoslovno-matematički fakultet Sveučilište u Zagrebu
Author: BRKIĆ ŽELJKA
Date of defense: 01/20/95
Language: hrvatski
Number of pages: 76
Summary: The basic aim of the thesis was to explore the recharge of
a semiconfined aquifer which occurs in the area of the pumping site Ravnik
during a relatively heavy and long pumping. Simultaneously, in this area
and within a scientific research project in the domain of electro-hydraulic
analogy, it was studied the relationship between the specific electrical
resistivity of Quaternary deposits saturated with groundwater, determined
by the resistivity sounding, and pertaining hydrogeological parameters of
the semipermeable covering layer determined in the process of model
calibration.
- Type of paper
: Mentorship
Title: Groundwater budget of the pumping site Ravnik-Kutina
Faculty: Prirodnoslovno-matematički fakultet Sveučilište u Zagrebu
Mentor: URUMOVIĆ KOSTA
Date of defense: 01/20/95
Number of pages: 76
Author: Brkić mladi istraživač Željka
Degree level: M.A.
- Type of paper
: Computer program
Title: Determination of the hydraulic conductivity index
- Authors:
- Gold, Hrvoje
Odering party: Ministarstvo znanosti i tehnologije
Institution depot: Institut za geološka istraživanja
HW platform: PC
Operating system: DOS
Programming language: XDBASE
Year: 1992
- Type of paper
: Computer program
Title: Computation of the transmissivity index values
- Authors:
- Gold, Hrvoje
Odering party: Ministarstvo znanosti i tehnologije
Institution depot: Institut za geološka istraživanja
HW platform: PC
Operating system: DOS
Programming language: XDBASE
Year: 1992
- Type of paper
: Computer program
Title: Computation of the leakage index values
- Authors:
- Gold, Hrvoje
Odering party: Ministarstvo znanosti i tehnologije
Institution depot: Institut za geološka istraživanja
HW platform: PC
Operating system: DOS
Programming language: XDBASE
Year: 1992
- Type of paper
: Data base
Title: Geoelectric Data Base (BGEP)
- Authors:
- Brkić, Željka (189785)
- Šarin, Ante (46130)
Institution administrator: Institut za geološka istraživanja
HW platform: PC
Operating system: DOS
Base format: DBASE
Number of entries: 6541
- Type of paper
: Data base
Title: Geohydraulic Data Base (BGHP)
- Authors:
- Brkić, Željka (189785)
- Šarin, Ante (46130)
Institution administrator: Institut za geološka istraživanja
HW platform: PC
Operating system: DOS
Base format: DBASE
Number of entries: 902
- Type of paper
: Survey/Study
Title: Safe yield of the pumping site Ravnik - Final report
- Authors:
- Urumović, Kosta (51212)
- Brkić, Željka (189785)
- Šarin, Ante (46130)
- Gold, Hrvoje
Ordering party: Javno vodoprivredno poduzeće "Lonja-Strug"
Institution depot: Institut za geološka istraživanja
Year: 1993
Number of pages: 25
Language: hrvatski
Summary: At the Ravnik pumping site, 8 wells are being operated
producing about 60 l/s of water. The demand is greater for 20 more l/s. The
wells were shortly test pumped to determine their present specific
capacity. A mathematical model showed that the total groundwater recharge
is 28 % above the pumped amount of water, thus, the required increment of
the pumped water amount is possible. However, it is necessary to revitalize
all the well sand two more wells, now inactive, to put also in operation.
Other: Elaborat sadrži 5 priloga (1. karta i ostali prilozi).
- Type of paper
: Survey/Study
Title: Preliminary hydrogeological study of the Lipovac pumping
site
- Authors:
- Urumović, Kosta (51212)
- Mayer, Darko
- Dragičević, Ivan
- Hlevnjak, Branko
- Tomljenović, Bruno
Ordering party: Fond u stambenom i komunalnom gospodarstvu
Institution depot: Rudarsko-geološko-naftni fakultet Sveučilišta u Zagrebu
Year: 1992
Number of pages: 45
Language: hrvatski
Summary: The study comprises: (1) the hydrogeological interpretation
of Quaternary deposits occuring along the border of Drava depression and
Legrad ridge, (2) the interpretation of groundwater qualityas a consequence
of depositional conditions and (3) the evaluation of the considered area
with respect to its suitability for a regional pumping site of the
Koprivnička Podravina (the Drava river plain around the town of
Koprivnica).
Keywords: Drava river valley (Podravina), major pumping site, alluvial aquifer, groundwater quality
Other: Elaborat sadrži 10 grafičkih priloga.
- Type of paper
: Survey/Study
Title: Preliminary study of the development of the Jarčevac
regional pumping site
- Authors:
- Urumović, Kosta (51212)
- Mihelčić, Dragutin
- Hlevnjak, Branko
Ordering party: Vodovod grada Osijeka
Institution depot: Rudarsko-geološko-naftni fakultet Sveučilišta u Zagrebu
Year: 1992
Number of pages: 28
Language: hrvatski
Summary: The recent most exploration of groundwater resources of
eastern Drava valley have been directed to the groundwater recharge study
of the existing pumping site Vinogradi, used for the water supply of the
town of Osijek, and potential pumping site of Jarčevac. This study
demonstrates possibilities of the development of the Jarčevac pumping site
into the pumping site of two neighbouring water supply systems, of the
towns of Osijek and Valpovo.
Keywords: Drava river valley (Podravina), major pumping site, alluvial aquifer, groundwater quality
Other: Studija sadrži 5 grafičkih priloga.
