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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 1- MANAGING DELTAS : MAPPING CHLOROPHYLL-A CONCENTRATION IN LAIZHOU BAY USING LANDSAT 8 OLI DATA
MAPPING CHLOROPHYLL-A CONCENTRATION IN LAIZHOU BAY USING LANDSAT 8 OLI DATA
Author : CHENGKUN ZHANG , MIN HAN
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 : 1,024,467 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 1- MANAGING DELTAS
Date Published : 18/04/2016
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