Analysis 02: OWF Effect on the Ocean - On the Effect of Offshore Wind Farms on the Atmosphere and Ocean Dynamics - page 79

elevation with upwelling. Due to divergences and convergences, the change in the
horizontal velocity field at the surface varies from the wind field by time.
Based on exchange study, changes of hydrographic is a result of vertical motion,
divergence, and convergence, dominantly supported by vertical advection.
External impact factors triggering the intensity of wind wake, and so of the
ocean ' s answer, are considered in the analyses of the next section.

5.3 Analyzing OWF ' s Effect on the Ocean Under Various
Assumptions

Analysis of the OWF s effect on the ocean under various assumptions aims to

capture possible comprehensive impacts triggering wind wake and so the effect on
the ocean.
On one hand, an exalted impact on the OWF

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s effect on the ocean considering
aspects of influences due to duration of operating wind turbines, magnitude of wind
speed, and size of OWF is documented.
On the other hand, different computational assumptions for ocean simulation are
considered, focusing on additional aspects based on assumptions regarding forcing
and design of ocean box.
In this connection, focus is more precisely the analysis

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• 5.3.1 : of the consistency of the ocean s effect due to duration of operation;

• 5.3.2 : of wind speeds triggering wind wake magnitude;
• 5.3.3 : of wind park power regarding the amount and arrangement of wind
turbines;
• 5.3.4 / 5.3.5 : of influence by forcing comprehending inducement by the Brostr ¨ m
approach ( 5.3.4 ) and full possible meteorological forcing ( 5.3.5 ), which can be
applied in HAMSOM;
• 5.3.6 : of the design of ocean box dealing with a reduction of ocean depth from
60 to 30-m water depth.

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The results are based on simulation under TOS-01 (model ocean box), consid-
ering the above-mentioned modifications using temperature and salinity start field
TS01. Modifications include usage of forcing (F01, F02, F03, F04) and change of
wind speeds (UG05, UG08, UG16), number of wind turbines (T12, T48, T80,
T160), ocean depth (HD60, HD30), and horizontal resolution (HR3, HR1).

5.3.1 Analyzing Consistency of OWF Effect on Ocean

During the description of the common effect of a wind farm wake on the ocean, it
was shown that the effect on the ocean appears immediately after using wind