Satellite-Based Study of Seasonal Variability in Water Quality Parameters in a Tropical Estuary along the Southwest Coast of India

摘要: To sustain a healthy ecosystem, continuous monitoring of the water quality is vital. Ocean colour remote sensing an important tool to carry out such studies. Thus, chlorophyll-a (Chl-a), chromophoric dissolved organic matter (aCDOM440), turbidity (T) and sea surface temperature (SST), among others, have been considered in present study evaluate Cochin Backwaters, tropical estuary along southwest coast India. Landsat 8/OLI data used derive parameters (WQP), seasonal averages estimated variations occurring area during 2014–2018. These were then plotted against river runoff find its impact upon said parameters. The results showed that aCDOM440 Chl-a concentrations related as both at their peaks monsoon season with values approximately more than 1.6 m−1 5.6 mg/m3, respectively. However, other seasons, was not seen directly correspond area. Turbidity observed be highest spring inter-monsoon (SIM) reaching 60 FNU. As far concerned, it found around ~ 25 °C for most parts year, except when dropped below 25 °C. Interannual variability WQP they 2014 followed by 2016, 2017 2018, while year 2015 had lowest concentration. also brings utility ocean products alternative Indian coastal estuarine waters.