Optical teledetection of chlorophyll a in estuarine and coastal waters
Gons, H.J.; Rijkeboer, M.; Bagheri, S.; Ruddick, K.G. (2000). Optical teledetection of chlorophyll a in estuarine and coastal waters. Environ. Sci. Technol. 34(24): 5189-5192. http://dx.doi.org/10.1021/es0012669
In: Environmental Science and Technology. American Chemical Society: Easton. ISSN 0013-936X; e-ISSN 1520-5851, more
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| Keywords |
Marine/Coastal; Brackish water; Fresh water |
| Authors | | Top |
- Gons, H.J.
- Rijkeboer, M., more
- Bagheri, S.
- Ruddick, K.G., more
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| Abstract |
A hand-held spectroradiometer was used for above-water determination of subsurface spectral irradiance reflectance in the Scheldt Estuary (Belgium/The Netherlands), the North Sea off the Belgian coast, and the Hudson/Raritan Estuary (New York/New Jersey). On the North Sea the measurement conditions were adverse, and elsewhere broken cloud caused considerable spectral variation. Despite this variation the retrieval of chlorophyll a (Chl-a) from three reflectance spectra at all sampling stations was stable. The algorithm calibrated for the freshwater IJssel Lagoon (The Netherlands) proved to be applicable to these estuarine and coastal waters (N = 30; standard error of estimate = 7 mg m-3 for corrected Chl-a ranging from 1 to 93 mg m-3). |
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