Analysis of Selected Reservoirs Functioning in the Wielkopolska Region

Sojka, Mariusz; Jaskuła, Joanna; Wicher-Dysarz, Joanna; Dysarz, Tomasz

doi:10.15576/asp.fc/2017.16.4.205

Cited by 11 publications

(11 citation statements)

References 2 publications

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“…Due to the fact that water demand is still increasing, there is continued need to store water of good quality . In recent years, the problems related to the functioning of reservoirs were highlighted in many studies (Dąbrowska et al, 2016;Sojka et al, 2017). One of the most serious problems related to the functioning of reservoirs is the change in water quality and transparency, affected by concentration of algae blooms, chlorophyll and suspended sediments.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Degradation Processes in Reservoirs Based on Remote Sensing Data

Jaskuła¹,

Sojka²

2019

ASP.FC

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Aim of the studyThe primary objective was to assess spatio-temporal changes of the vegetation occurring in 12 reservoirs located in the Odra River basin. The analysis was made for reservoirs of different constructions, i.e. single stage, two-stage and lateral. The second purpose was to analyze possibility using remote sensing data to monitor the dynamics of the vegetation processes. Material and methodsMonitoring and mapping of spatio-temporal changes of the vegetation occurring in the reservoirs was analyzed on the basis on Sentinel-2 data. The analysis was based on the NDVI and the WAVI indices. To specify spatial changes of vegetation, the reservoirs were split into zones equals to 250 m. The statistical analysis was aimed at comparing the NDVI and the WAVI values between designated zones. In turn, Cluster analysis (CA) was used to group reservoirs into clusters on the basis of similarities between the NDVI and the WAVI values. Results and conclusionsCluster analysis (CA) showed that each reservoir is separate water body where decisive impact on degradation process could have different factor. There was observed that two-stage construction focuses degradation processes in pre-reservoir and protect water resources in the main part. Additionally, relatively new solution -lateral reservoirs seems to be alternative preventing degradation processes. Taking into account possibility of using satellite imagery, there was observed that resolutions of Sentinel-2 satellite imagery allow to monitor vegetation processes in terms of time and space. The major limitation of using remote sensing data is high cloud density, which significantly reduces the number of observations during most of the year. Jaskuła, J., . Analysis of degradation processes in reservoirs based on remote sensing data. Acta Sci. Pol., Formatio Circumiectus, 18 (2), 23-37. DOI: 24 www.formatiocircumiectus.actapol.net/pl/

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Section: Introductionmentioning

confidence: 99%

Analysis of Degradation Processes in Reservoirs Based on Remote Sensing Data

Jaskuła¹,

Sojka²

2019

ASP.FC

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“…Due to the fact that water demand is still increasing, there is continued need to store water of www.formatiocircumiectus.actapol.net/pl/ good quality (Wang et al, 2019). In recent years, the problems related to the functioning of reservoirs were highlighted in many studies (Dąbrowska et al, 2016;Sojka et al, 2017). One of the most serious problems related to the functioning of reservoirs is the change in water quality and transparency, affected by concentration of algae blooms, chlorophyll and suspended sediments.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Degradation Processes in Reservoirs Based on Remote Sensing Data

Jaskuła¹,

Sojka²

2019

ASP.FC

Self Cite

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Aim of the study The primary objective was to assess spatio-temporal changes of the vegetation occurring in 12 reservoirs located in the Odra River basin. The analysis was made for reservoirs of different constructions, i.e. single stage, two-stage and lateral. The second purpose was to analyze possibility using remote sensing data to monitor the dynamics of the vegetation processes. Material and methods Monitoring and mapping of spatio-temporal changes of the vegetation occurring in the reservoirs was analyzed on the basis on Sentinel-2 data. The analysis was based on the NDVI and the WAVI indices. To specify spatial changes of vegetation, the reservoirs were split into zones equals to 250 m. The statistical analysis was aimed at comparing the NDVI and the WAVI values between designated zones. In turn, Cluster analysis (CA) was used to group reservoirs into clusters on the basis of similarities between the NDVI and the WAVI values. Results and conclusions Cluster analysis (CA) showed that each reservoir is separate water body where decisive impact on degradation process could have different factor. There was observed that two-stage construction focuses degradation processes in pre-reservoir and protect water resources in the main part. Additionally, relatively new solution-lateral reservoirs seems to be alternative preventing degradation processes. Taking into account possibility of using satellite imagery, there was observed that resolutions of Sentinel-2 satellite imagery allow to monitor vegetation processes in terms of time and space. The major limitation of using remote sensing data is high cloud density, which significantly reduces the number of observations during most of the year.

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“…1) is an area where a distinct trend towards a lowering of surface and ground water levels has been observed for decades (Graf 2010;Ilnicki et al 2012a, b;Nowak, Przybyłek 2008;Przybyłek, Nowak 2011a;Sojka et al 2017;Nowak 2018a). This is an effect of unfavourable climate changes (Kędziora 2008(Kędziora , 2011, deforestation, incorrect meliorations (Choiński, Ptak 2008;Kaniecki 2011;Marszelewski et al 2011;Przybyłek, Nowak 2011a;Choiński et al 2012;Nowak, Gezella-Nowak 2012;Ptak et al 2013;Choiński et al 2016;Nowak 2018a), excessive uptake of water for municipal and economic purposes, and mining drainage (Ilnicki 1996;Ilnicki, Orłowski 2006a, b;Orłowski, Ilnicki 2007;Przybyłek, Nowak 2011a, b).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the potential for the use of lakes in restoring water resources and flood protection, with the example of the Noteć Zachodnia River catchment (Gniezno Lakeland, Poland)

Nowak

Nadolna

Stanek

2018

Meteorol. Hydrol. Water Manage.

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Abstract. This paper presents the results of a study aimed at determining the possibility of water retention in the lakes located in the upper and middle reaches of the Noteć Zachodnia River in central-west Poland. The study was conducted on the basis of the analysis of available hydrological data and contemporary and archival topographic basemaps. The research was supplemented by a field study from the years 2011-2016, during which numerous surveys and hydrometric measurements were made. Their goal was to determine the natural range of water fluctuations in the lakes under consideration and to identify potential flows in the Noteć Zachodnia River.Observations and calculations allowed the determination of damming ordinates that are within the range of natural water fluctuations of the lakes. On the basis of this information and the previously prepared model of terrain, including the test area, the authors designated zones within the lakes at the required water level and calculated the useful and flood capacity of those water reservoirs. Subsequently, the possibilities of reducing the flood wave on the Noteć Zachodnia River were determined. Calculations were made for 2011, i.e. a year for which the highest winter spate for over 30 years has been documented. It has been shown that, by using only the flood capacities of surveyed lakes, it would be possible to reduce the flood wave on the Noteć Zachodnia River by 30% for the profile closing its catchment below Kamienieckie Lake.The results indicated the validity of damming the lakes located in the catchment of the Noteć Zachodnia River. Water retention in these lakes would restore the water resources in the area and allow reduction of the flood wave during heavy rains. This action would positively affect the ecosystems associated with the river system and would assist the flood protection system in central and west Poland.

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Analysis of Selected Reservoirs Functioning in the Wielkopolska Region

Cited by 11 publications

References 2 publications

Analysis of Degradation Processes in Reservoirs Based on Remote Sensing Data

Analysis of Degradation Processes in Reservoirs Based on Remote Sensing Data

Analysis of Degradation Processes in Reservoirs Based on Remote Sensing Data

Evaluation of the potential for the use of lakes in restoring water resources and flood protection, with the example of the Noteć Zachodnia River catchment (Gniezno Lakeland, Poland)

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