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In Situ Match-up Comparisons
Chesapeake Bay Regional Analysis
Global Analysis
Cal/Val TM's
Calibration Gain Factors
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Changes made since reprocessing #2
- Calibration related changes
1.1 Expanded time-dependent calibration
1.2 Bilinear gain adjustments
1.3 Revised vicarious calibration of bands 1
through 6
1.4 Revised vicarious calibration of band 7
- Changes to the atmospheric correction
2.1 Modified aerosol model selection
2.2 Epsilon extrapolation
2.3 Improved Rayleigh computation (wind dependence)
2.4 Pressure dependent transmittance
- Changes to reduce negative water-leaving
radiances
Siegel NIR - "Atmospheric Correction of Satellite
Ocean Color Imagery: The Black Pixel Assumption."
D. Siegel, M. Wang, S. Maritorena, W. Robinson,
submitted to Applied Optics.
- General changes
4.1 Repair problem in level-3 product: chlorophyll
/ K_490
4.2 Whitecap correction, Frouin spectral dependent
whitecap reflectance
4.3 Sun glint correction performed
4.4 Ozone data interpolation improvement
4.5 Improved K(490) algorithm
4.6 Absorbing aerosol algorithm for new flag
/ mask
4.7 Improved Chlorophyll algorithm - OC4v4
4.8 Out-of-band correction applied to nLw
values
4.9 Navigation changes: improvements to the
navigation algorithms in the level-0-to-1A
software to reduce the seasonal variations
in geolocation accuracy.
- Major product and flag changes
5.1 Product suite changes - remove La_670,
La_865, CZCS_pigment, add nLw_670, angstrom_510
5.2 Flag changes - 24 flags instead of 16,
including break-up of conditions previously
under 1 flag and new conditions: absorbing
aerosols, trichodesmium, max aerosol NIR
iterations; Solar zenith angle threshold
increased to 75 degrees
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