Observations of 'sub-grid scale mixing' in coastal ecosystems

An Atmospheric and Oceanic Sciences Seminar presented by Dr. Nick Nidzieko, University of Maryland, Center for Environmental Science, Horn Point Laboratory

Wednesday, May 22, 2013
3:30 PM - 5:00 PM
Math Sciences Building, Room 7124

This seminar highlights a faculty search candidate. To arrange a meeting with the candidate please e-mail melisl@atmos.ucla.edu or dawnz@atmos.ucla.edu directly.

Abstract

Although estuaries and kelp forests are among the most productive habitats per unit area on the planet, their role in global biogeochemical cycles is poorly constrained. Much of this uncertainty is due to the wide range of physical forcing (tides, wind, etc.) that collectively affect residence time and material fluxes. In order to improve parametereization of processes in these critical--yet often sub-grid scale--habitats, the dominant physics must be known at daily, episodic, and seasonal time scales. High-frequency, long-term observations are essential to this end.  Two examples highlighting the importance of such observations will be presented: the first example shows how fortnightly modulation of lateral exchange between the main channel and fringing intertidal areas affects net ecosystem metabolism in an estuary;  the second example shows how submesoscale eddies generated at an upwelling front contribute to cross-shore flushing of a kelp forest.

__________________________________________________________________

SEMINAR at 3:30 PM
Room MSB 7124
SEMINAR TEA:  4:30-5:00PM (MSB 7124B)