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Physical Sciences and Mathematics Commons

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The University of Maine

2007

Biological Oceanography

Articles 1 - 2 of 2

Full-Text Articles in Physical Sciences and Mathematics

Collaborative Proposal: Form And Function Of Phytoplankton In Unsteady, Low Reynolds-Number Flows, Peter Jumars, Lee Karp-Boss Jun 2007

Collaborative Proposal: Form And Function Of Phytoplankton In Unsteady, Low Reynolds-Number Flows, Peter Jumars, Lee Karp-Boss

University of Maine Office of Research Administration: Grant Reports

Small-scale flow dynamics at low Reynolds numbers (Re) are important to phytoplankton cells in delivery of nutrients, sensory detection by and physical encounter with herbivores, accumulation of bacterial populations in the "phycosphere" or region immediately surrounding phytoplankton cells and coagulation of cells themselves as a mechanism terminating blooms. In nature most phytoplankton experience unsteady flows, i.e., velocities near the cells that vary with time due to the intermittency of turbulence and to discontinuous, spatially distributed pumping by herbivores. This unsteadiness has not previously been taken into account in models or measurements with plankton. Moreover, there have been decade- and century- …


Globec Nep: Satellite-Observed Ocean Climate Variability, Andrew C. Thomas Mar 2007

Globec Nep: Satellite-Observed Ocean Climate Variability, Andrew C. Thomas

University of Maine Office of Research Administration: Grant Reports

The PIs will extend in time and expand in scope the satellite data development and satellite-based analyses of ocean climate variability in the Northeast Pacific (NEP), begun during the GLOBEC Pilot Project phase (1997 - 00). The overall scientific problem is to characterize and quantify the dominant modes of variability in the NEP as embodied by satellite measurements of surface transports, temperature and chlorophyll patterns. Our analyses address multiple spatial and temporal scales using merged satellite data products over GLOBEC target study regions in both the California Current (CCS) and the coastal Gulf of Alaska (CGOA).

GLOBEC NEP field studies …