Global change and remote sensing of CDOM in Arctic coastal waters

The amount of CDOM in arctic waters plays an important role both from global carbon cycle point of view and from radiative heating point of view of surface waters. The first part of this paper summarizes the current situation in remote sensing mapping of CDOM concentration in Arctic Ocean. Radiative heating calculations were carried out with Hydrolight 5.0 model in order to estimate the impact of variable amount of CDOM on heating of Arctic surface waters. Also the total area where the Arctic Ocean waters differ from the clear oceanic waters was estimated using MODIS K
_d
(490) product.