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Application of MODIS land/atmosphere bands to ocean processing

Application of MODIS land/atmosphere bands to ocean processing. NASA Ocean Biology Processing Group Goddard Space Flight Center, Greenbelt, Maryland, USA SeaDAS Training Material. band wavelength resolution potential use 645 nm 250 m sediments, turbidity, IOPs 859 250 aerosols

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Application of MODIS land/atmosphere bands to ocean processing

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  1. Application of MODIS land/atmosphere bands to ocean processing NASA Ocean Biology Processing Group Goddard Space Flight Center, Greenbelt, Maryland, USA SeaDAS Training Material SeaDAS Training ~ NASA Ocean Biology Processing Group

  2. band wavelength resolution potential use • 645 nm 250 m sediments, turbidity, IOPs • 859 250 aerosols • 469 500 Ca, IOPs, CaCO3 • 555 500 Ca, IOPs, CaCO3 • 1240 500 aerosols • 1640 500 aerosols • 2130 500 aerosols MODIS land / atmosphere bands SeaDAS Training ~ NASA Ocean Biology Processing Group

  3. Expanded MODIS ocean band suite increased spatial resolution and expanded dynamic range have cost of increased digitization error and reduced signal to noise SeaDAS Training ~ NASA Ocean Biology Processing Group

  4. Multi-resolution implementation aggregation interpolation from Gumley et al. observed (TOA) radiances, geolocation, radiant path geometries interpolated or aggregated to a common resolution at start SeaDAS Training ~ NASA Ocean Biology Processing Group

  5. Nanticoke Patuxent Wicomico Potomac Pocomoke Rappahannock York James RGB image (645,555,469) of Chesapeake Bay and tributaries SeaDAS Training ~ NASA Ocean Biology Processing Group

  6. RGB image: 250-m resolution SeaDAS Training ~ NASA Ocean Biology Processing Group

  7. nLw(645): 250-m resolution -0.1 mW cm-2m-1 sr-1 3.0 SeaDAS Training ~ NASA Ocean Biology Processing Group

  8. water SWIR VIS NIR Use of MODIS SWIR bands in coastal waters Water absorption in SWIR >> NIR by more than one order of magnitude In SWIR, ocean is black evenin turbid waters, Lw(SWIR) = 0 See Wang and Shi, Geophys. Res. Let.32 (2005) SeaDAS Training ~ NASA Ocean Biology Processing Group

  9. Chl retrievals using SWIR bands NIR-based Aerosols SWIR-based Aerosols SeaDAS Training ~ NASA Ocean Biology Processing Group

  10. Preliminary results for the Chesapeake Bay upper middle lower SeaDAS Training ~ NASA Ocean Biology Processing Group

  11. References http://oceancolor.gsfc.nasa.gov/DOCS/modis_hires/ B.A. Franz et al., “MODIS land bands for ocean remote sensing applications,” Proc. Ocean Optics XVIII, Montreal, Canada, 9-13 October 2006. http://oceancolor.gsfc.nasa.gov/DOCS/Publications/Franz_2006_ooxviii.pdf SeaDAS Training ~ NASA Ocean Biology Processing Group

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