Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/112115
Type of publication: research article
Type of publication (PDB): Straipsnis kitose duomenų bazėse / Article in other databases (S4)
Field of Science: Fizinė geografija / Physical geography (N006)
Author(s): Pileckas, Marijus;Žiliūtė, Gražina
Title: Tapelių ežero morfometrija ir baseino fizinės geografinės ypatybės
Other Title: Morphometry of Lake Tapeliai and physicalgeographical characteristics of its catchment
Is part of: Geografija ir edukacija : mokslo almanachas = Geography and education : science almanac. Vilnius : Akademikai, 2020, Nr. 8
Extent: p. 54-68
Date: 2020
Keywords: Tapelių kraštovaizdžio draustinis;Tapelių ežeras;Batimetrinis planas;Morfometrija;Baseinas;Tapeliai Landscape Reserve;Tapeliai;Lake;Vilnius;Lithuania;Bathymetric chart;Morphometry
Abstract: Straipsnyje pateikiamas autorių sudarytas Tapelių ežero, telkšančio Vilniaus miesto savivaldybės šiaurės rytinėje dalyje, batimetrinis planas, nagrinėjami nustatyti ežero morfometriniai rodikliai ir remiantis įvairiais šaltiniais apibūdinamos ežero baseino fizinės geografinės ypatybės
Depth measurements of Lake Tapeliai (located in Vilnius, Lithuania) were taken in February 2019. At the same time, the shoreline of the lake was revised. Measurements were made from ice in 767 spots. Depth measurement accuracy up to 0,05 m, accuracy of spot coordinates and water surface elevation measurement using GNSS device Topcon Hiper SR up to 1–2 cm. Later, a detailed (1 × 1 m) digital lake bottom model (DEM) was developed, a bathymetric plan of the lake was created, the main morphometric features were calculated, the boundaries and area of the lake catchment were adjusted, and the physical-geographical characteristics of the lake and its catchment were examined based on various data. Morphometric features of Lake Tapeliai measured and calculated in 2019 are as follows: coordinates of mean center 54.774378, 25.4468 (WGS), water surface elevation 136.48 m (in Height System LAS07 of Lithuania), surface area 13.14 ha, shoreline length 1689 m, maximum length 687 m, maximum width 295 m, mean width 191 m, shoreline development 1.31, maximum depth 9.45, mean depth 4.36, volume 573.8 thousands m3 , mean width of littoral zone 17,4 m, catchment area (including the lake itself) 2,93 km2 . Lake Tapeliai catchment is located in the moraine and limnoglacial plains of Vilija, it is characterized by a rather diverse relief, which consists of a section of Tapeliai glacial tunnel valley, limnoglacial and fliuvioglacial plains, aeolian landforms and moraine hills. Average annual precipitation is ~686 mm. Significant portion (45 %) of the annual precipitation replenishes the lake, mostly through groundwater discharge. Water residence time in the Lake Tapeliai is 0.63 years. Lake Tapeliai covers 4.5 % of the catchment area. Forests cover as much as 79.4 % of the catchment area, pine forests predominate (82.3 %). Built-up areas occupy 11.3 % of the catchment area.[...]
Internet: http://dx.doi.org/10.5200/GE.2020.4
Affiliation(s): Mokytojų rengimo institutas
Vytauto Didžiojo universitetas
Švietimo akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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