Absorption modelling in Case 2 waters: The need to distinguish coloured dissolved organic matter from non-chlorophyllous particulates
The presented study examines, for substantial datasets in different Case II waters, the variability of the spectral absorption of Non Chlorophyllous Particles (NCP) and Coloured Dissolved Organic Matter (CDOM). The investigation has considered the validity of the currently proposed modelling of the absorption of these two components as a single variable, in applications to Case II water environments. In order to encompass a broad range of environmental situations two very different sites were selected: the Southern Baltic Proper and a site in the Northern Adriatic close to the Italian coast. These two regions differ both in their basic oceanographic properties and in their relative proportions of Optically Active Components (OAC). Furthermore, the datasets considered illustrate the variability at different scales in both space and time, combining a series of seasonal oceanographic campaigns in the Baltic with a complete annual timeseries of monthly measurements at a fixed point in the Adriatic. The analysis has shown that, in the selected European Case II waters, the observed variability of the spectral absorption of NCP and CDOM are independent, and therefore should be considered individually when defining the absorption segment.
Bibliographic Reference: Paper presented: Ocean Optics XIII, Halifax (CA), October 22-25, 1996
Availability: Available from (1) as Paper EN 40541 ORA
Record Number: 199710661 / Last updated on: 1997-06-09
Original language: en
Available languages: en