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Hi Flynn,
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<div>It seems that xmitgcm now supports cube-sphere grids: <a href="https://github.com/MITgcm/xmitgcm/pull/98">https://github.com/MITgcm/xmitgcm/pull/98</a></div>
<div>I’ve personally never worked with cube-spheres but it might be worth a try.</div>
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<div>Best,</div>
<div>Takaya</div>
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<div>On Oct 9, 2024, at 8:06 AM, Flynn Ames <f.ames@pgr.reading.ac.uk> wrote:</div>
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Dear MITgcm community,</div>
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Hello - I've been attempting to use the cubed sphere topology in the MITgcm. I've managed to successfully run the model and produce output. However, I am having trouble processing the output for visualisation, namely with the velocity outputs. </div>
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To cut to the chase, I was wondering if anyone could help with the following questions:</div>
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<div class="elementToProof">What are the steps to be taken to process outputs for ocean velocity (e.g., zonal, meridional components) so that they can be visualised?</div>
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<div class="elementToProof">Do translations for the existing MATLAB MITgcmutils cubed sphere library exist for Python?</div>
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As I understand it, velocity outputs need to first be re-orientated, because as outputted, they are orientated relative to the cube face that they are on. I have tried using the function 'rotate_uv2uvEN' (from MITgcmutils) for this. However, I find the function
requires the velocity arrays to be a different shape than that outputted by the model. I'm therefore unsure if there are some preprocessing steps I need to take before this? Or if I have the wrong idea entirely?</div>
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Secondly, I noticed that the python library for cubed sphere (in MITgcmutils) has one function which is to plot a field (which in contrast to the MATLAB function I tried, did accept the velocity arrays in the shape outputted by the model). I'm curious to ask
if any further python translations exist for the rest of the cubed sphere library? </div>
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If any more information is required about my setup/intentions, I can definitely provide it!</div>
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Thanks in advance!</div>
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Flynn</div>
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