AREA-STORAGE CAPACITY CURVE OF HISTORIC ARTIFICIAL WATER RESERVOIR OTTERGRUND, SLOVAKIA – ASSESSMENT OF THE HISTORICAL DATA WITH THE USE OF GIS TOOLS (original) (raw)

Vindšachta Water Reservoir – Using GIS Tools for a Comparison of Storage Capacity in 1887 and 2014

2015

This article focuses on an analysis of the storage capacity of Vindsachta water reservoir in Stiavnicke Bane, Banska Stiavnica district, at two points in time: 1 887 (old) and 201 4 (current). The analysis was performed using an old bathymetry map dated 1 887 and current data from sonar surveying (201 4). The analysis was performed by comparing water volumes calculated from digital elevation models of the reservoir bottom for each year, using an area-storage capacity curve. During the period between the two years, the water volume decreased to 85% of the initial storage capacity (from 335 000 m3 to 285 000m3).

Changes in retention characteristics of 9historical artificial water reservoirs near BanskáŠtiavnica, Slovakia

Open Geosciences, 2015

The article is focused on the evaluation of accumulation volume changes in 9 water reservoirs near Banská Štiavnica (Slovakia) by comparing historical maps and using modern bathymetric surveying technologies. The mining region of Banská Štiavnica has been inscribed into the UNESCO List of the World and Cultural Heritage in 1993. Accumulation and transfer of sediments depend mainly on changes of land cover in the watersheds that lead to the loss of retention capacity and reduction of life span of reservoirs. The results of a comparison of two 3D models, one created from historic documentation and the other created from data of field surveying have shown overall reduction in the volume of water totalling 446484 m 3 , i.e. 16.70% from past to current time. Causes of sedimentation were searched in watersheds changes over time. These were identified by comparison of historical aerial imagery (1949) with existing aerial photographs.

Comparison of Actual and Presumed Water Capacity of Fish Pond in Lukacovce

Ecology Safety, 2014

This paper deals with the possibility of the reservoir bottom mapping for the calculation of the water depth and water volume in GIS environment with the use of the creation of 3D models of the reservoir bottom in raster and vector formats. Data collection was done in July of 2013 as the non-contact surveying with the GNSS receiver and echosounder. Surveying was executed as the RTK GNSS surveying with continuous depth measurement with echosounder during the sail with raft boat propelled with electric engine. Processing of collected data and model creation was done in ArcGIS 9.2 software. For the raster models creation we used "Spline with tension" and "Topo to raster" interpolation methods, for the vector model creation we used the TIN modelling tools with application of the Delaunay triangulation rules, these models were used for the calculation of the water volume.

Volumetric and landscape-ecological diachronic analysis of a historical artificial water reservoir Evička in Slovakia

The present study focuses on the analysis and evaluation of the changes in the retention volume of the water reservoir Evička, the ecosystems of littoral, sublittoral and profundal zone as well as the changes in the land cover of the riparian zone and reservoir basin. The changes in reservoir volume were determined on the basis of a comparison of the actual bottom’s topography, acquired through field surveying with the bottom’s topography from the maps for a 40-year period (1971-2011). The volume of the sediments deposited in the water reservoir Evička for given period is 10917 m3. The changes in the landscape structures of riparian zone and reservoir basin, identified on the basis of the analysis of aerial measurement pictures, orthophotomap and field survey, were evaluated for the period of 1949-2012, i.e., 63 year. It is evident from the analysis of the landscape structure changes in the whole reservoir basin that the area of developed surfaces increased by 11.2% and the surface area of water reservoir Evička decreased by 1165 m2 during that period. We interpret these facts as the result of a negative anthropogenic effect, mainly by building activity within the reservoir basin and near the water reservoir. At the same time, the contribution presents possible measures for the management of water reservoir Evička and its surroundings.

A Procedure to Develop Elevation-Area-Capacity Curves of Reservoirs from Depth Sounding Surveys

Proceedings of 2017 International Conference on ENERGY and ENVIRONMENT, 2017

This paper proposes a procedure for developing reservoir elevation-area-storage capacity curves and bathymetric charts of a reservoir from depth sounding surveys. The Morii Reservoir, located in Bucharest (Romania), on Dambovita River, was chosen as case study. A single beam bathymeter with GPS was used in 2016 to survey the reservoir's bed. The acquired bathymetric data were denoised with a custom-made program written in Python, that uses the Butterworth filter and a zero-phase noise cancellation function. The decontaminated data were subsequently interpolated in ArcGIS to produce a gridded DEM of the reservoir bed surface and a bathymetric chart with contour lines. The area-capacity-elevation curves were obtained by calculating the 2D area and volume between horizontal planes and the interpolated bed surface. Comparisons with bathymetric survey from 2010 show differences of less than 14% in terms of storage capacity and 8% of the area of the reservoir during these 6 years.

Identification and Analysis of Areas of Historical Ponds (Chrudimka River Basin)

This study deals with the possibilities of creation of a map database of historical ponds and its usability in combination with other sources of spatial information, using an example of a compact territory: the Chrudimka River Basin (Eastern Bohemia). A number of available data sources were used for the creation of the database: the maps of the historical exploitation of the landscape (the military survey, the Stabile Cadastre), the digital database of water management data, the database of geographical data of the Czech Republic, etc. The methods of both automatic (in ArcGIS 9.3) and manual localisation of basins were tested for the territory in question. In addition, the paper describes in detail the method of creation of the digital layer in the GIS environment, pointing out the problems encountered in the creation of this layer of ponds from the II nd military survey (historical ponds). The paper also includes analyses of the areas of ponds from the II nd military survey (the al...

Assessment of the actual water basin capacity with the use of GIS

2013

The water basin bottom relief during its lifetime is shaped by the acumulation of-The usage of the GIS for this task means the usage of digital terrain model (DTM), which x, y, z), we used the arrangement of the measuring equippment consisting of the GPS receiver and Streszczenie.

CHANGES IN BATHYMETRY AND LAND COVER OF RIPARIAN ZONE OF AN OLD ARTIFICIAL WATER RESERVOIR VEĽKÝ KOLPAŠKÝ

The mining region of Banská Štiavnica (Slovakia) has been inscribed into the UNESCO List of the World and Cultural Heritage in 1993. One of its special features is the system of artificial water reservoirs (locally referred to as “tajchy”) communicating via trenches built in early 18th century. The system was a water source, which drove the mining machines. Accumulation and transfer of sediments mainly depending on changes of land cover in the riparian zone leads to the loss of retention capacity and reduced life of reservoirs. Aim of this study is to analyse changes of the storage capacity/volume of the Veľká Kolpašská water reservoir that took place in the last is 123 years (1889–2012) and changes of land cover (LC) on the riparian zone in the course of the last 63 years (1949–2012). Volume and bottom relief changes were identified by comparison of bathymetric data drawn from the historical map of 1889 with the present data obtained in 2012 by bathymetric surveying. 3D models representing different situations were used for computation of the sediment volume. Results showed 57.801 m³ of sediments deposited in the course of 123 years that reduced the storage capacity of the reservoir by 7.23%. Changes of land cover in the riparian zone were detected via the analysis of aerial photographs (1949) and orthophotomaps from 2006, up-dated in the field for 2012. Analysis of changes show an increase of land cover categories which contribute to abrasion of banks, and the rate of sediment transfer to the reservoir ( by 11.030 m²) resulting in an increased silting potential.

Assesment of bathymetric maps via GIS for water in reservoir

Boletim de Ciências Geodésicas, 2014

In order to adopt measures for storing more water in reservoirs, lakes and ponds; to prevent water pollution, protect water sources and extend the service life of these facilities, it is important for manager (Municipalities, Directorates of the State Hydraulic Works (DSHW), Irrigation Unions etc.) to know the current topographic conditions and any changes in the storage capacities of these facilities. This study aimed to identify the updated topographic and bathymetric data required for the efficient management and usage of Altınapa reservoir, changes in surface area and volume of the facility, and to form a Reservoir Information System (RIS). Two digital elevation models, from 2009 and 1984, were used to determine changes in the storage capacity of the reservoir. The calculations indicated that, within this 25-year period, the storage capacity of the reservoir decreased by 12.7% due to sedimentation. A Dam Information System (RIS) was developed from a wide range of data sources, i...