Synthesis & Modeling Project
Eileen E. Hofmann
Evaluation of marine primary productivity in the tropical Pacific and
Atlantic Oceans using satellite ocean color and numerical models
(Collab with Chuck McClain)
NASA, 36 months
This research program focuses on three general topics of investigation:
The first topic will have as a primary emphasis the use of various basin-scale
meteorological, altimetric, SST, and in situ (e.g. TAO array) data for
time-space correlation analyses with surface ocean color pigment fields.
These analyses will provide descriptive evaluations of observed variability
and suggestions of underlying processes. The coupled models will be used
to provide a more complete interpretation of the observed fields and of
the derived correlations. The models will also be used to conduct sensitivity
studies on the effects of spatial and temporal variability in light absorption
on heat fluxes, mixed layer depth and circulation. The ecosystem models
will be used to address issues related to temporal variability in nutrient
supply (micro- and macronutrients) on ecosystem structure and function.
The data assimilation studies will be designed to provide improved estimation
of biological rates and to provide improved parameterization of biological
rates in three-dimensional, basin-scale, coupled physical-biological models.
interactions between physical and biological processes in tropical Pacific
and Atlantic Oceans,
coupled physical-biological models for predictive and diagnostic studies,
data assimilation techniques for model prediction skill and ecosystem parameter
Results for this project were submitted in collaboration with McClain et al. See:
Biogeochemical Model of the Tropical Pacific Ocean
- no publications listed -
McClain; Koblinsky; Lewis; Murtugudde; Asanuma; Busalacchi
"Physical-biological interactions in the Tropical
Pacific and Atlantic Equatorial surface layers"
Friedrichs; et al. "Regional ecosystem
model testbeds. A JGOFS synthesis and modeling project."
Hofmann; Klinck; Smith; Prézelin
"Comparative modeling and data analysis studies for the Ross Sea and West
Antarctic Peninsula regions: A JGOFS synthesis and modeling project"
Eileen E. Hofmann
Center for Coastal Physical Oceanography
Old Dominion University
768 West 52nd Street
Norfolk, VA 23529
tel: (757) 683-5334
fax: (757) 683-5550