Geometric characteristics of multitudinous lakes and lake catchments for Bangalore rural catchment. Issue 1 (1st December 2022)

• Record Type: Journal Article
• Authors: Jacob, P; Palur, S; Sameer, S M; Sneha, M; Puneeth, L; Namratha, B
• Is Part Of: IOP conference series. Volume 1125:Issue 1(2022)
• Publication Date: 2022-12-01
• Subjects: Lake delineation -- Lake catchment -- form factor -- compactness coefficient -- elongation ratio -- circularity ratio -- QGIS; Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/1125/1/012005
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: Bangalore is a city of lakes. There are numerous lakes in Bangalore Urban and Rural districts with significant variations in the size of the lakes. The lakes are an essential water source to these areas in the absence of rivers. It is necessary to know the morphometry parameters of the lake and its catchment to compute the volume of water generated and stored in the lakes during rainfall events. The geometric aspects of the lake provide robust knowledge about the hydrologic response of the catchment to rainfall events. The delineation of lake and lake catchment is done in QGIS software. There are 131 lake catchments in the study area whose catchment area varies from 0.20km 2 to 22.5km 2 . The geometric aspects' average values, namely form factor, compactness coefficient, elongation ratio, and circularity ratio, are 0.815, 1.8, 1, and 0.321, respectively. These parameters are derived from the lake catchment's area, perimeter, and length.