Water balance of Slovenia 1971 – 2000

Frantar, Peter; Dolinar, Mojca; Kurnik, Blaž

doi:10.1088/1755-1307/4/1/012020

Cited by 25 publications

(22 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Litija 1 station has a drainage area of 4281.43 km 2 and lies at 230 m a.s.l. (Frantar and Hrvatin 2008 An Alpine pluvial-nival discharge regime is typical for this station. The characteristic of this regime is two fairly equal peaks in autumn and spring.…”

Section: Datamentioning

confidence: 87%

Comparison between the peaks-over-threshold method and the annual maximum method for flood frequency analysis

Bezak

Brilly

Šraj

2014

Hydrological Sciences Journal

237

169

View full text Add to dashboard Cite

Editor D. KoutsoyiannisCitation Bezak, N., Brilly, M., and Šraj, M., 2014. Comparison between the peaks-over-threshold method and the annual maximum method for flood frequency analysis. Hydrological Sciences Journal, 59 (5), 959-977.Abstract Flood frequency analysis can be made by using two types of flood peak series, i.e. the annual maximum (AM) and peaks-over-threshold (POT) series. This study presents a comparison of the results of both methods for data from the Litija 1 gauging station on the Sava River in Slovenia. Six commonly used distribution functions and three different parameter estimation techniques were considered in the AM analyses. The results showed a better performance for the method of L-moments (ML) when compared with the conventional moments and maximum likelihood estimation. The combination of the ML and the log-Pearson type 3 distribution gave the best results of all the considered AM cases. The POT method gave better results than the AM method. The binomial distribution did not offer any noticeable improvement over the Poisson distribution for modelling the annual number of exceedences above the threshold.

show abstract

Section: Datamentioning

confidence: 87%

Comparison between the peaks-over-threshold method and the annual maximum method for flood frequency analysis

Bezak

Brilly

Šraj

2014

Hydrological Sciences Journal

237

169

View full text Add to dashboard Cite

show abstract

“…In the equation however there is assumed to be no direction of inflows or outflows of water from the basin. It is therefore our aim to modify the water balance equation to develop a surface runoff simulation model indicating directions of inflow and outflows of rainwater from the basin as has been done by other researchers (Frantar et al, 2008;Hugh and Ayers, 1970). Evapotranspiration component of the equation was determined using Thornthwaite (Thornthwaite, and Mather (1955).…”

Section: Estimation Of Surface Runoffmentioning

confidence: 99%

Estimating stream discharge of Aboine River Basin of Southeast Nigeria using modified Thornthwaite climatic water balance model

Ezemonye¹,

Emeribe²,

Anyadike³

2016

Journal of Applied Sciences and Environmental Management

View full text Add to dashboard Cite

ABSTRACT:The study attempts to estimate the stream discharge of the Aboine river basin, southeast Nigeria, using modified climatic water balance approach. Moisture deficit in the basin generally begins from January and lasts up to April while utilization begins from October up to December. The basin attains a field capacity from August to September and decreases in moisture storage from October when more water is removed from the basin to meet plant water needs. The value of the circularity ratio of 0.29 showed that the Aboine Basin will produce little surface runoff. Results of bifurcation ratio, compactness coefficient, stream length and modeling of inter-basin parameters showed that the Aboine drainage basin is basically a flat surface. This will affect both the amount of water available from the basin for any water resources projects. Such information also provides the basis for demonstrating the effects of environmental control on the fluvial system and also for predicting the basin output variables. Surface runoff contribution to discharge was computed as a residual of our modified climatic water balance equation while groundwater flow contribution to discharge was determined from the separation of water stage hydrograph available for the study area from 1984 to 1987, using the hydrograph separation technique. Comparison of calculated discharge values using modified THWB climatic water balance with stream discharge determined from water-stage showed significant difference between computed stream discharge from water stage and discharge estimated from our water balance model at 0.05 level of confidence. This suggests that our modified water balance model if further improved maybe suitable for generating information on all the aspects of the moisture relationship in the basin in the absent of measured stream flow data. © JASEM

show abstract

“…The grid data result from a spatial interpolation of measured precipitation using the Kriging method under consideration of relief data (Frantar 2008). The interpolation is based on data from 248 stations, mainly with daily resolution.…”

Section: Data Preparation and Regionalizationmentioning

confidence: 99%

Model-based assessment of groundwater recharge in Slovenia

et al. 2015

View full text Add to dashboard Cite

The implementation process of the EU water legislation (EU WFD, EU GWD) has put pressure on environmental managers to create, analyse and disseminate hydrological data in recent years. In this context, distributed hydrological model results at the macro scale ([10,000 km 2 ) have gained importance for the Environment Agency of the Republic of Slovenia, too. Within a joint project the distributed water balance model GROWA, developed for Germany, has been adapted to Slovenia by re-calibrating the routine for determining the average annual groundwater recharge rate. This routine consists mainly of a base flow index approach (BFI). This BFI is based on 41 different site conditions in Slovenia, whereas lithology dominates the recharge process. This paper outlines the general GROWA approach, the required input data, and the calibration process. Validated model results for the period 1971-2000, especially total runoff and base flow, are presented and discussed. These results have been used already for practical water management issues in Slovenia on European, national and regional level. It is shown that Slovenian groundwater resources exhibit high regional and seasonal variability. Tendencies of more frequent and more pronounced droughts have been detected. As demonstrated by the results GROWA is a valuable tool for the spatially distributed assessment of groundwater recharge in Slovenia.

show abstract

Water balance of Slovenia 1971 – 2000

Cited by 25 publications

References 1 publication

Comparison between the peaks-over-threshold method and the annual maximum method for flood frequency analysis

Comparison between the peaks-over-threshold method and the annual maximum method for flood frequency analysis

Estimating stream discharge of Aboine River Basin of Southeast Nigeria using modified Thornthwaite climatic water balance model

Model-based assessment of groundwater recharge in Slovenia

Contact Info

Product

Resources

About