David Griffin | Madeleine Cahill | Peter Oke Gary Carroll | Uwe Rosebrock CSIRO Marine and Atmospheric Research
David Griffin
Evaluation of ROAM surface currentsusing IMOS data• HF radar system off Perth – only instrument to provide maps of
current velocity right near the surface, out to ~100km depending on radar range at the time• Look at this first, then briefly also:• ADCPs off Townsville (more regular in time, all depths below ~12%
of water depth, isolated locations).
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David Griffin3 |
David Griffin
Lets look at time series of u and v at these 5 points
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David Griffin
Agreement (V component) fairly good, especially phase of inertial oscillations
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David Griffin
Eastward velocity component (u) also OK
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David Griffin
Different run (slightly bigger domain): more disagreement
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David Griffin
Especially for V (northward velocity)
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David Griffin
Larger domain: needs data assimilation (not used for this run, will do soon)
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David Griffin
Off Townsville, daily averages at 20m, fair qualitative agreement