Accession Number:

ADA580644

Title:

Temporal and Spatial Variability of Black Sea Hydrodynamics and Chlorophyll: A Concentration with Connection to Wind Forcing

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

2013-03-01

Pagination or Media Count:

161.0

Abstract:

Spatial and temporal variability of the Black Sea surface circulation with the link to chlorophyll-a concentration and surface winds is investigated using Satellite data from Archiving, Validation, and Interpretation of Satellite Oceanographic data AVISO, Sea-viewing Wide Field-of-view Sensor SeaWiFS, and Quick Scatterometer QuikSCAT with the Self-Organizing Maps SOMs. Six spatial patterns with temporal variability were identified for the surface currents Pattern-1 Sevastopol Cyclonic and Batumi Dipole Eddies, 21, Pattern-2 Cyclonic RIM Current and Anti-cyclonic Batumi Eddy, 16, Pattern-3 Anti-cyclonic Sevastopol and Batumi Eddies, 17, Pattern-4 Cyclonic RIM Current and Cyclonic Batumi Eddy, 21, Pattern-5 Anti-cyclonic RIM Current and Batumi Dipole Eddies, 15, Pattern-6 Anti-cyclonic RIM Current and Multi Eddies, 10. It is found the change of the bi-modal characteristics in 2000-2009 with the fall bloom being more significant than the spring bloom. The surface circulation Pattern-4 cyclonic RIM current and Batumi eddy is associated with the occurrence of the fall bloom. Evident connection of negative NAO and negative ENSO to the Pattern-4 circulation implies the large-scale atmospheric effect. Possible connection of these patterns to the climatological indices, such as the North Atlantic Oscillation NAO and the East AtlanticWest Russian EAWR, oscillation are also discussed.

Subject Categories:

  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE