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Analysis and visualisation of lake disappearance process in Iława Lakeland Landscape Park

100%
Marynowska W. C.
Quaestiones Geographicae
|
2018
|
vol. 37
|
issue 1
115-124
EN
Lake disappearance as a natural stage of evolution of lakes is an extremely important issue in the landscape and ecosystem research context. Studies of the changes that occur in the lake landscape, characteristic in the northern part of Poland, are aimed at defining the cause and forecasting the results. The possibilities of the Geographic Information Systems (GIS) were used in this paper to analyse and visualise the process of lake disappearance in the Iława Lakeland Landscape Park. GIS technologies which primarily are used for gathering, storing, processing and presenting spatial data have been used to interpret changes in lakes coverage over a period of 100 years. The analysis were based on data bases and cartographic former maps such as hydrographic maps, attribute data and bathymetric plans. The data was gathered by transfer from different geoportals, next vectorised, and then preprocessed. Former maps were rectified. The lake disappearance process was presented in several forms: lake cards, animations and interactive map. Basing on the GIS analysis about lake disappearance in Iława Lakeland Landscape Park it was possible to state that lakes are disappearing in rate of 3.99 ha a−1.
2
Publication available in full text mode
Content available

Analysis and visualisation of lake disappearance process in Iława Lakeland Landscape Park

100%
Marynowska W. C.
Quaestiones Geographicae
|
2018
|
vol. 37
|
issue 1
115-124
EN
Lake disappearance as a natural stage of evolution of lakes is an extremely important issue in the landscape and ecosystem research context. Studies of the changes that occur in the lake landscape, characteristic in the northern part of Poland, are aimed at defining the cause and forecasting the results. The possibilities of the Geographic Information Systems (GIS) were used in this paper to analyse and visualise the process of lake disappearance in the Iława Lakeland Landscape Park. GIS technologies which primarily are used for gathering, storing, processing and presenting spatial data have been used to interpret changes in lakes coverage over a period of 100 years. The analysis were based on data bases and cartographic former maps such as hydrographic maps, attribute data and bathymetric plans. The data was gathered by transfer from different geoportals, next vectorised, and then preprocessed. Former maps were rectified. The lake disappearance process was presented in several forms: lake cards, animations and interactive map. Basing on the GIS analysis about lake disappearance in Iława Lakeland Landscape Park it was possible to state that lakes are disappearing in rate of 3.99 ha a−1.
3

Zmiany powierzchni jezior Pojezierza Dobrzyńskiego w świetle materiałów kartograficznych

63%
Piasecki A.
Prace Geograficzne
|
2013
|
issue 132
39–57
PL
Przedstawiono wyniki analizy zmian powierzchni i liczebności wszystkich jezior Pojezierza Dobrzyńskiego w ciągu ostatnich 110 lat. W analizie wykorzystano materiały kartograficzne pochodzące z trzech okresów: 1900 – 1915, 1980 – 1985 oraz 2009, dzięki czemu możliwe było wychwycenie zmian powierzchni jezior i określenie ich tendencji. Otrzymane wyniki wskazują na zmniejszanie się powierzchni badanych jezior w analizowanym okresie. Największe zmiany zaszły w przypadku jezior najmniejszych, o powierzchni poniżej 5 ha. Zwrócono uwagę na nierównomierne zmniejszanie się jezior w poszczególnych obszarach pojezierza. N ajwiększe spadki powierzchni wystąpiły w południowej, północno-wschodniej, a zwłaszcza południowo-wschodniej jego części. Z miany powierzchni poszczególnych jezior zawierały się w przedziale od kilku do kilkudziesięciu procent ( w przypadku zaniku jeziora było to sto procent ). N ajczęstszą konsekwencją omawianych zmian był wzrost długości linii brzegowej jezior, wskutek powstania półwyspów i zatok. W kilku przypadkach zaobserwowano także wyłonienie się niewielkich wysp. Wskazana w opracowaniu tendencja zmniejszania się jezior pozostaje w zgodzie z wynikami uzyskanymi przez innych autorów w innych częściach Polski.
EN
This paper presents the results of the analysis of changes in the surface area and number of lakes in the Dobrzyń Lake District over the past 110 years. In the analysis cartographic materials from three periods were used : 1900 – 1915, 1980 – 1985 and 2009, making it possible to capture changes in the surface area of lakes and determine their trend. The results indicate a decrease in the surface area of the studied lakes in the mentioned period of time. The biggest changes occurred in the case of the smallest lakes of surface area less than 5 hectares. It was found out that the decrease in lake surface area in specific parts of the Lake District was uneven. The largest decrease occurred in the southern, north-eastern and particularly south-eastern parts of it. Changes in the surface area of individual lakes ranged from a few to several tens of percent (in the case of lake disappearance it was one hundred percent). The most common consequence of these changes was an increase in the lakeshore length due to the creation of peninsulas and bays. In several cases, the emergence of small islands was also observed. The trend of lake surface area decreasing indicated in the paper is consistent with the results obtained by other authors in other parts of Poland.
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