Community Research and Development Information Service - CORDIS


Satellite observations of ocean colour collected by the Coastal Zone Color Scanner (CZCS) have been instrumental in the identification of fluctuations in the near-surface chlorophyll-like pigment concentration over basin and season scales. The present study attempts to use the advantages of existing models and methods to evaluate the scales of variation in the vertical distribution of the phytoplankton biomass and the integrated primary production over the Northeast Atlantic Ocean (5 - 40 N; 6 - 30 W). Initially the vertical distribution of chlorophyll is investigated with respect to oceanographic provinces assuming a Gaussian distribution of chlorophyll with depth in stratified conditions. After parameterisation and analysis of an extensive data set, this geographical partition is re-examined in terms of biogeochemical provinces accounting for changes in time and space of the concentration of chlorophyll at the surface and the shape of the biomass profile. Simple algorithms are then developed to determine the total phytoplankton biomass in the photic layer and its concentration at discrete depths, using solely satellite-derived values at the surface.

Additional information

Authors: HOEPFFNER N, JRC Ispra (IT);FINENKO Z, Ukranian Academy of Sciences, Institute of Biology of the Southern Seas (UA);LARKIN D, DJL Software Consultancy Ltd., Jarrow (GB)
Bibliographic Reference: Paper presented: International Colloquium on Photosynthesis and Remote Sensing, Montpellier (FR), August 28-31, 1995
Availability: Available from (1) as Paper EN 39241 ORA
Record Number: 199511257 / Last updated on: 1995-10-13
Original language: en
Available languages: en