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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Mapping chlorophyll-a concentration in laizhou bay using landsat 8 oli data
Mapping chlorophyll-a concentration in laizhou bay using landsat 8 oli data
Recent years, the increasing human activities such as the sea aquaculture, industrial production, contribute to the water
eutrophication of Laizhou Bay, Bohai Sea, China. The concentration of chlorophyll-a, an important index of water quality
status, is often used to describe the extent of eutrophication. With the characteristics of rapidity, cyclicity, large-scale
and low-cost, the technique of remote sensing plays a crucial role in quantitatively monitoring the status of water quality.
MODIS is designed specifically for ocean color, and its Chlorophyll-a inversion models for case„°water were already
widely used. But for its lower spatial resolution, MODIS cannot satisfy the needs of monitoring the water quality in
coastal case „± waters, such as Laizhou Bay. The shorter cycle, the higher spatial of Landsat 8 OLI data has offered a
great promise for case „± water status quality monitoring. In this study we utilized two Landsat 8 OLI (Path/Row
120/034) images, for coastal waters around Laizhou city in summer and winter, to map the distribution of chlorophyll-a
concentration. Optimal linear regression models between OLI band combination and concurrent in suit water quality
measurements are developed respectively, and then are used to estimate the chlorophyll-a concentration in different
season. According to the chlorophyll-a concentration distribution map, the water quality of the coastal waters around
Laizhou city is in a certain degree of eutrophication.
File Size : 835,161 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 28/08/2015
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