Garcia-Gorriz, E. Jet Propulsion Laboratory-California Institute of Technology, eg@pacific.jpl.nasa.gov
Carr, M. Jet Propulsion Laboratory-California Institute of Technology, mec@pacific.jpl.nasa.gov

 
PHYSICAL CONTROL OF CHLOROPHYLL DISTRIBUTION PATTERNS IN THE ALBORAN SEA
 
The Alboran Sea forms the first junction between the saline waters of the Mediterranean and the less-saline waters of the Atlantic Ocean. The circulation is characterized by a near-permanent anticyclonic system, which dictates the pigment distributions in the basin. This westernmost basin presents near-surface pigment concentrations ranging between 7.4 and 0.1 mg/m3. Maximum values are observed in the periphery of the quasi-permanent western gyre, and associated with coastal upwelling off the Spanish and North African coasts. A 3-D primitive equation circulation model, forced by satellite winds, is used to simulate the flow field in the region. We use a nutrient-temperature relationship derived from historical measurements and the model to estimate the supply of nutrients to the upper ocean due to wind-induced upwelling and that associated with gyre dynamics. The resulting spatial and temporal pattern of nutrient supply is compared with observed patterns of pigment from the Ocean Color Temperature Sensor (OCTS) and the Sea-viewing Wide Field of View Sensor (SeaWiFS).
 
Day: Tuesday, Feb. 2
Time: 11:30 - 11:45am
Location: Sweeney Center
 
Code: SS43TU1130S