Chesapeake Bay ocean color chlorophyll algorithm round robin

Documentation

Overview of data processing and statistical analyses (PDF)
SeaWiFS MLAC browse images
Example of varying geographic coverage
Empirical fits for an in situ Chesapeake Bay data set

Presentation for CBP on 18 Jul 2006

Candidate Algorithms

1. OC4 version 4 (OC4v4; SeaWiFS operational algorithm; O'Reilly et al. 2000)
2. OC4 version 5 (OC4v5)
3. OC3 version 5 (OC3v5; MODIS operational algorithm)
4. OC2 version 5 (OC2v5)
5. OC3-CB (provided by Old Dominion University)
6. Clark (provided by NOAA)
7. GSM01 (Maritorena et al. 2002, Appl. Opt., 41, 2705-2714)
8. GSM01-CB (Magnuson et al. 2004)
9. Carder (VIIRS operational algorithm; Carder et al. 1999, JGR-Oceans, 104, 5403-5421)

Satellite-to-in situ Matchups

All Regions Upper Bay Mid Bay Lower Bay
All
Spring
Summer
Fall
Winter 		All
Spring
Summer
Fall
Winter 		All
Spring
Summer
Fall
Winter 		All
Spring
Summer
Fall
Winter

Data distributions

Upper Bay Mid Bay Lower Bay
All
Spring
Summer
Fall
Winter 		All
Spring
Summer
Fall
Winter 		All
Spring
Summer
Fall
Winter

Time-series (all years)

For visual clarity, the in situ data and Algorithm 1 (oc4v4) are included in every time-series plot.

Upper Bay Mid Bay Lower Bay
Algorithms 2 - 5
Algorithms 6 - 9 		Algorithms 2 - 5
Algorithms 6 - 9 		Algorithms 2 - 5
Algorithms 6 - 9

Time-series (year-by-year)

Upper Bay Mid Bay Lower Bay
Algorithm 1 (oc4v4)
Algorithm 2 (oc4v5)
Algorithm 3 (oc3v5)
Algorithm 4 (oc2v5)
Algorithm 5 (oc3cb)
Algorithm 6 (clark)
Algorithm 7 (gsm01)
Algorithm 8 (gsm01-cb)
Algorithm 9 (carder) 		Algorithm 1 (oc4v4)
Algorithm 2 (oc4v5)
Algorithm 3 (oc3v5)
Algorithm 4 (oc2v5)
Algorithm 5 (oc3cb)
Algorithm 6 (clark)
Algorithm 7 (gsm01)
Algorithm 8 (gsm01-cb)
Algorithm 9 (carder) 		Algorithm 1 (oc4v4)
Algorithm 2 (oc4v5)
Algorithm 3 (oc3v5)
Algorithm 4 (oc2v5)
Algorithm 5 (oc3cb)
Algorithm 6 (clark)
Algorithm 7 (gsm01)
Algorithm 8 (gsm01-cb)
Algorithm 9 (carder)


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Last revised 07 May 2007