Browsing by Author "Thys, Charlton"

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    Remote sensing of inundation dynamics in select coastal lakes of the Western Cape, South Africa
    (Universty of the Western Cape, 2024) Thys, Charlton; Carolissen, Mandy
    In Southern Africa, many semi-arid to arid parts of the region experiences water scarcity issues, exacerbated by climate variability, increasing industrialisation and urban growth. Consequently, these impacts have implications for the hydrological regimes of freshwater systems, in which decreases in rainfall and groundwater recharge further exacerbate hydrological functioning. Thus, the relevance of the remote monitoring of freshwater waterbodies using freely available satellite images and water extraction techniques has been widely demonstrated in providing valuable data and information particularly when validated by high resolution data and in situ data. This research focuses on the suitability of using remotely sensed data such as Landsat 8 Operation Land Imager (OLI) and Sentinel 2A Multispectral Imager (MSI) and various spectral water indices including the Automated Water Extraction Index (AWEI), Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI) and the Modified Normalized Difference Water Index (MNDWI) to monitor the inundation of freshwater coastal lakes in the Western Cape, South Africa.