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SEASONAL AND INTERANNUAL VARIABILITY OF THE WESTERN MEDITERRANEAN SEA, COASTAL AND ESTUARINE STUDIES, VOL. 46, PAGES 195–225, 1994

The Temporal and Spatial Variability of Chlorophyll in the Western Mediterranean

Robert Arnone

Abstract

Spatial and temporal scales of chlorophyll variability are examined for the Western Mediterranean using Coastal Zone Color Scanner ocean color imagery. In the Alboran Sea, short (daily) changes in regional surface integrated chlorophyll show an 83% increase within 24 hours. for longer scales (monthly), chlorophyll variability was examined for six different subregions in the Mediterranean. Subregions with energetic circulation have higher chlorophyll concentrations. Seasonal chlorophyll cycles within each subregion have different timing and intensity of the fall and spring bloom as a response to local physical events. Monthly averaged chlorophyll concentrations are compared with coincident monthly averages of solar irradiance intensity at the sea surface for 1979. Chlorophyll concentrations are shown to be related to the available surface irradiance for specific Western Mediterranean regions, during spring and fall time periods.

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Citation: Arnone, R. (1994), The temporal and spatial variability of chlorophyll in the western Mediterranean , in Seasonal and Interannual Variability of the Western Mediterranean Sea, Coastal Estuarine Stud., vol. 46, edited by P. E. La Viollette et al., pp. 195-225, AGU, Washington, D. C.

Copyright 1994 by the American Geophysical Union.