Approximation of diffuse attenuation,Kd, for MODIS high-resolution bands |
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| Authors: | Michelle C. Tomlinson Richard P. Stumpf Ronald L. Vogel |
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| Affiliation: | 1. National Oceanographic and Atmospheric Administration, National Ocean Service, National Centers for Coastal Ocean Science, Silver Spring, MD, USA;2. Cooperative Institute for Climate &3. Satellites, Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA;4. National Oceanic &5. Atmospheric Administration, National Environmental Satellite, Data and Information Service, Center for Satellite Applications &6. Research, College Park, MD, USA |
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| Abstract: | A high resolution depth attenuation product (Kdhires) was developed using MODIS 500 m and 250 m spectral bands. The Kdhires was compared with Wang’s operational Kd for the Chesapeake Bay. Minimal differences were observed between the two methods, with greatest deviation occurring in areas of high turbidity in the tributaries. After tuning the new Kdhires, the mean absolute error and bias between the two algorithms was 0.22 m?1 and 0.026 m?1, indicating good agreement. Higher spatial resolution provides for improved retrievals along the coast and into the narrow sections of the tributaries, coinciding with areas of concern to estuarine health and coastal management applications. |
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| Keywords: | Depth attenuation MODIS water clarity |
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