U.S.
JGOFS
Synthesis & Modeling Project |
|
|
| David A. Siegel
Co-Investigators:
Norman Nelson
Stephane Maritorena |
| Development and application
of the next generation of ocean color models for the understanding of marine
processes on regional and global scales
NASA, 36 months |
 |
| PROJECT
DESCRIPTION: |
Our proposal encompasses two distinct areas of research;
the development of new ocean color "tools" and the analysis and interpretation
of a biogeochemic al - bio-optical time series in the Sargasso Sea. Each
of these areas of research are continuations of NASA-supported work presently
performed at UCSB. Briefly, our two proposed research areas are:
-
development and application of next generation of semi-analytical ocean
color algorithms, and
-
analysis, modeling and interpretation of the Bermuda BioOptics Project
(BBOP) time series.
This proposal leverages on-going field work collected by the NASA SIMBIOS
supported BBOP ocean color calibration/validation program as well as the
NOAA-COP/ONR supported Plumes and Blooms field study of the Case II waters
of the Santa Barbara Channel. The two broad areas of research will
insure that we will keep our focus on the global ocean color problems while
remembering that these "global solutions" must work on regional scales.
Specifically, we will use a global optimization technique (i.e., simulated
annealing) for determining the optimal model coefficients used in semi-analytical
ocean color algorithms. By comparing the results derived from global
and regional data sets, we can assess the global validity of common ocean
color assumptions. We also may be able to make improvements in retrieval
results by parameterizing regional differences in the retrieved model parameters.
In this way, we will develop "optimal" ocean color products from SeaWiFS,
OCTS, etc. Using the BBOP data set, our goals are to develop new
methods by which biologically and biogeochemically relevant rates may be
determined from space-sensed variables and to apply these methods to satellite
data for addressing these fluxes throughout the Sargasso Sea. It
is our opinion, substantial progress in the application of satellite technology
to ocean biology and biogeochemical processes requires the development
and application of a new generation of ocean color tools.
|
| DATA: |
Global Monthly Colored
Detrital and Dissolved Materials (CDM) in the Oceans (on SMP LAS server) |
| PUBLICATIONS: |
Siegel, D.A., S. Maritorena, N.B. Nelson, D.A. Hansell,
M. Lorenzi-Kayser. in press. Global distribution and dynamics
of colored dissolved and detrital organic materials. J. Geophys.
Res. |
| RELATED
PROJECTS: |
- no related projects listed -
|
INVESTIGATOR
INFORMATION: |
David A. Siegel
Donald Bren School of Environmental Science & Management
4670 Physical Sciences North
University of California, Santa Barbara
Santa Barbara, CA 93106-5131
tel: (805) 893-4547
fax: (805) 893-2578
davey@bren.ucsb.edu
http://www.bren.ucsb.edu/fac_staff/fac/davey/default.html
Norman B. Nelson
Assistant Research Scientist
Bermuda Biological Station for Research, Inc.
Ferry Reach, St. George's
Bermuda GE 01
tel: (441) 297-1880 x307
fax: (441) 297-8143
norm@bbsr.edu
http://www.bbsr.edu/users/norm/
Stephane Maritorena
Institute for Computational Earth System Science (ICESS)
University of California at Santa Barbara
6841 Ellison Hall
Santa Barbara, CA 93106
tel.: (805) 893-2544
fax : (805) 893-2578
stephane@icess.ucsb.edu |
