Modelling of the ecosystem of the Black-Sea shelf zone near the estuary of the Danube

Autor: N. Mikhailova, N. B. Shapiro, S. P. Lyubartseva, V. A. Ivanov
Rok vydání: 2001
Předmět:
Zdroj: Physical Oceanography. 11:509-524
ISSN: 0928-5105
DOI: 10.1007/bf02509844
Popis: We analyze the results of numerical calculations performed according to the three-dimensional interdisciplinary model of an ecological system of the Black-Sea shelf zone near the estuary of the Danube. The complete system of equations of hydrothermodynamics is solved together with transport equations of the advection-diffusion-reaction type used to describe the transformation of a substance (nitrogen) between the components of the characteristic vectors of the ecosystem: plankton, detritus, and biogenic elements (nitrates). We describe the distinctive features of the circumcontinental distribution of components obtained as a result of numerical experiments and present arguments for the conclusion that the ecosystem of the Danube estuary water area plays the role of a buffer zone between the press of the Danubian biogenic pollutions and the neighbouring areas of the shelf zone and open sea.
Databáze: OpenAIRE