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Title: | Assessing the potential of satellite and ground spectral data for Chlorophyll-a monitoring in Lake Kasumigaura, Japan |
Authors: | Dahanayaka, D.D.G.L. Tonooka, H. Wijeyaratne, M.J.S. Minato, A. Ozawa, S. |
Keywords: | ASTER Chlorophyll-a in-situ measurements regression analysis |
Issue Date: | 2014 |
Publisher: | IEEE |
Citation: | D.D.G.L. Dahanayaka, H. Tonooka, M.J.S. Wijeyaratne, A. Minato and S. Ozawa, 2014. Assessing the potential of satellite and ground spectral data for Chlorophyll-a monitoring in Lake Kasumigaura, Japan, Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International, pp. 3350 - 3353. |
Abstract: | The suitability of a handheld spectrometer and ASTER satellite data for monitoring Chlorophyll-a (Chl-a) in Lake Kasumigaura, Japan was tested in July 2010 to December 2013. ASTER based Chl-a retrieval algorithms were developed support with in-situ Chl-a, MODIS OC3 Chl-a and Kakemaoki and Koshin automated water quality monitoring stations Chl-a. ASTER VNIR band ratio were regressively analyzed with the corrected MODIS Chl-a and automated station values obtained for each ASTER date on a day by day basis. The regression equation of the ASTER band ratio (B1/B2), with highest correlation was used to generate high-resolution Chl-a distribution maps. Significant correlation between the ratio of the reflectance peak at 705 nm and the Chl-a absorption at 678 nm and the in-situ Chl-a content was observed and these reflectance ratios were used to establish spectrometric Chl-a estimation algorithms. Proposed algorithms can be successfully adopted to determine localized environmental effects in the Lake. |
URI: | http://repository.kln.ac.lk/handle/123456789/5846 |
Other Identifiers: | Zoology |
Appears in Collections: | Zoology |
Files in This Item:
File | Description | Size | Format | |
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Assessing the potential of satellite and ground spectral data for Chlorophyll.pdf | 87.46 kB | Adobe PDF | View/Open |
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