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Unformatted text preview: ⎠ 2 (34) Equation (34) holds for 0 ≤ x ≤ LSALT, where x=LSALT is the intersection of the saltwater interface
with the substratum. Thus, if the bedrock is at z = 0, the value of LSALT is defined by ZSALT (x) = 0.
Other variables in equation (34) are defined below:
• LX is the domain size in the x-direction, between the two fixed head boundaries H=H0 (sea at left)
and H=H1 (freshwater at right);
• ZSEA = H0 is the elevation and depth of the sea level above the substratum, at the sea boundary
• H1 is the depth of the freshwater level above the substratum at the inland boundary x=LX ;
• ZSALT is the elevation of saltwater/freshwater interface above the substratum;
• LSALT is the x-wise penetration length of the salt wedge inland, on the bedrock;
• ΔZ is the vertical length of the submarine freshwater outflow face into the sea. Modélisation stochastique de l'intrusion saline en 2D plan 63 The term (ε ΔZ)/(ε+1) can sometimes be neglected in equation (9); we have here:
(ε ΔZ)/(ε+1) = 0.018 m ,
which is indeed small compared to ZSEA = 30 m and to ΔH = H1 -ZSEA = 1 m.
Also, to simplify the above expression Zsalt(x),...
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This document was uploaded on 01/19/2014.
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