Ecology, Environment and Conservation Paper

Vol 27, Oct Suppl. Issue, 2021; Page No.(25-32)

TEMPORAL MONITORING OF ALGAE BLOOMS IN A DRINKING WATER RESERVOIR USING LANDSAT-8 OLI DATA

Haidi Abdullah and Tarq K. Hassan

Abstract

Algal blooms in drinking water reservoirs present a major natural concern around the world, coming about in water contamination, expanded water treatment costs, and dangers to human and creature wellbeing. Conventional observing approaches utilizing ship-based strategies that incorporate field examining and research facility examination are exceptionally difficult, expensive, wasteful, and troublesome to apply for administration purposes in large water bodies. The use of satellite technology can pre-empt such limitations. Here we show that Landsat-8 Operational Land Imager (OLI) time-series imagery has a great protentional to provide valuable spatiotemporal information regarding surface algae blooms. We calculated the surface algae bloom index (SABI) and utilized meteorological data (air temperature, solar radiation, total water runoff and precipitation) to monitor algae blooms from January until December 2019. The results show severe algae blooms during summer months (June, July, and August). Furthermore, we observed a high positive correlation (r = 0.77) between solar radiation and SABI value, indicating SABI’s sensitivity for detecting surface algae blooms. The results of this study demonstrate the enormous potential of Landsat-8 OLI data as additional monitoring tools for Lake Dukan resource managers.