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Some estimates of the sulfur reservoirs that can be used as initial data

Reservoir Identifier in Equations (4.1)-(4.18) Quantitative estimate of the sulfur reservoir (mg/m2) [Pg.220]

Equations (4.1) through (4.18) are supplemented in each cell of the spatial division of the ocean surface with initial conditions (Table 4.3). The boundary conditions for Equations (4.11) through (4.18) are zero. The calculation procedure to estimate sulfur concentration consists of two stages. First, at each time moment th for all cells Qiy, Equations (4.1)-(4.18) are solved by the quasi-linearization method, and all reservoirs of sulfur are estimated for ti+x = tf + At, where time step At is chosen from the convergence state of the calculation procedure. Then, at moment t(+1 using the climate unit of the global model these estimates are specified with account of the atmospheric transport and ocean currents over time At. [Pg.221]

Sulfates interacting with the ecosystems and establishing the interaction of the sulfur cycle with other biogeochemical processes are one of the most important elements in the global cycle of sulfur. Numerous complicated transformations of sulfates in the environment are described by the set of fluxes H2, H%, 7/10, Hu, [Pg.222]

The return of sulfates from the soil and water medium to the atmosphere is connected with rock weathering and spray above a rough water surface Cn = d2 RATE S04L, Hu = 0 RATE S04U, where RATE(ip, A, t) is the wind speed over the surface, m/s, and d2 and 0 are empirical coefficients. [Pg.223]

Flux Ci4 relates to the surface and water reservoirs of sulfur. Let a be the share of the river system area on land and d3 the proportion coefficient, then CM = d3 JV S04L T (Ljj T L)2)e7. [Pg.223]


Table 4.3. Some estimates of the sulfur reservoirs that can be used as initial data. Table 4.3. Some estimates of the sulfur reservoirs that can be used as initial data.



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A (sulfur

Data used

Sulfur reservoirs

The Data

Use, data

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