Relationships between Sea Surface Temperature and Nutrients in Satellite Detected Oceanic Fronts.
NAVAL POSTGRADUATE SCHOOL MONTEREY CA
Pagination or Media Count:
Satellite IR images of the California coast off Point Sur reveal recurrent surface features which appear to be thermal discontinuities associated with aperiodic upwelling events. Some of these have associated chemical fronts and increased biological activity. Satellite IR imagery was used to locate discontinuities and with in situ monitoring the development of three features were studied. Interrelationships between sea surface temperature nutrients and microplanktonic biomass were investigated. Nutrient ratios, satellite imagery, wind stress data and correlations between nutrients and temperature were used to develop an estimate of age within a simplified upwelling life cycle model. The features range in scale from tens to hundreds of kilometers. Two upwelling features exhibited very strong correlations between nutrient and temperature but a third feature had considerable nutrient variability. This suggests a considerable impact from the dynamic and biological processes. The technique of coupling satellite imagery and in situ monitoring was found to be a feasible method to provide real time inferences of the nutrient structure associated with an upwelled thermal feature. Author
- Inorganic Chemistry
- Infrared Detection and Detectors