Campbell, Janet: University of New Hampshire (Project Lead)
Collatz, George (Jim): NASA GSFC - retired (Participant)
DeCola, Philip (Phil): University of Maryland (Participant)
Project Funding:
2007 - 2010
NRA: 2006 NASA: EOS
Funded by NASA
Abstract:
This is an EOS Algorithm Refinement Proposal to continue being the Ocean Color Science Team member responsible for the MODIS chlorophyll algorithm. The overarching goal of this work is to ensure continuity of the global ocean chlorophyll time series that began with the SeaWiFS data record in 1997 by maintaining and refining the chlorophyll algorithm applied to MODIS data. I will continue working toward a unified approach to produce the Climate Data Record for chlorophyll beginning with the SeaWiFS record and continuing into the NPOESS era. In 2001, MODIS introduced a SeaWiFS-analog chlorophyll product based on my recommendation. This product utilizes the OC3M algorithm, an empirical algorithm parameterized with the same data set used to parameterize the SeaWiFS chlorophyll algorithm (OC4v4). Both algorithms are documented in the NASA technical memorandum (O'Reilly et al. 2000, NASA TM 2000-206892, Vol. 11). In 2004, with the formation of a new MODIS instrument team, the SeaWiFS-analog chlorophyll product was adopted as the standard chlorophyll product to be operationally produced and distributed by the Goddard DAAC. I am currently the team member responsible for refinement and maintenance of that algorithm, and I am proposing to continue in this role.
Maintenance and refinement of the chlorophyll algorithm will include: (1) characterizing uncertainty in the MODIS and SeaWiFS algorithms, and recommending refinements to both algorithms to reduce the uncertainty; (2) evaluating candidate analytical algorithms that are proposed by Ocean Color Science Team members as replacements to the empirical algorithms now used, and recommending selection of new algorithms based on community consensus; (3) investigating the improvement that can be achieved with a better characterization of the optical properties of oceanic provinces, and developing a strategy for implementing a global province-based approach.
2008 NASA Carbon Cycle & Ecosystems Joint Science Workshop Posters
- A Chlorophyll Algorithm for the U.S. East Coast for Application to Ocean Color Imagery
-- (Timothy S. Moore, Janet W. Campbell, Mimi Szeto)
[abstract]
More details may be found in the following project profile(s):
