Moline, M. Department of Biology/California Polytechnic State University, mmoline@calpoly.edu
Bergmann, T. Institute of Marine and Coastal Sciences/Rutgers University, bergmann@arctic.rutgers.edu
Glenn, S. Institute of Marine and Coastal Sciences/Rutgers University, glenn@caribbean.rutgers.edu
Grzymski, J. Institute of Marine and Coastal Sciences/Rutgers University, joeg@ahab.rutgers.edu
Schofield, O. Institute of Marine and Coastal Sciences/Rutgers University, oscar@ahab.rutgers.edu

 
CHARACTERIZING THE VARIABILITY IN THE INHERENT AND APPARENT OPTICAL PROPERTIES DURING THE LEO-15 1998 COASTAL PREDICTIVE SKILL EXPERIMENTS
 
One phenomenological focus of the ONR and NOPP-sponsored Coastal Predictive Skill experiments was on characterizing the impact of coastal upwelling in shallow waters (5-30 m) on nearshore in situ optical properties. Real-time physical data from the LEO-15 observation network allowed bio-optical survey vessels to adaptively adjust transects to characterize the formation of an upwelling eddy. Prior to the initiation of upwelling, the inherent optical properties were low. Upwelling, which began on the July 14th, evolved into a cyclonic eddy by July 21st. The eddy was clearly visible in AVHRR imagery. Changes in the bulk optical properties were clearly associated with the changes in the hydrography. For example, during the upwelling there was a three-fold increase in the inherent optical signals. Associated with that increase was a significant increase in both total suspended matter and particulate organic carbon. Subsurface chlorophyll a fluorescence doubled within the upwelling eddy. The increase in fluorescence could not however account for all the observed variability in the inherent and apparent optical properties. This indicates the importance of dissolved organic matter, detrital material, and possibly resuspended sediments. The scattering signals present within the upwelling also suggested the importance of non-phytoplankton particulates.
 
Day: Friday, Feb. 5
Time: 10:45 - 11:00am
Location: Hilton of Santa Fe
 
Code: SS12FR1045H