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<div><span></span>Hi Yangxin,</div><div>Thank you very much. I agree that the<span style="color: rgb(0, 0, 0); font-size: 10.5pt; line-height: 1.5; background-color: rgba(0, 0, 0, 0);"> noise could be a combination of the turbulence and the grid scale noise. Because when I change</span><span style="color: rgb(0, 0, 0); font-size: 10.5pt; line-height: 1.5; background-color: rgba(0, 0, 0, 0);"> the resolution, some noises are removed while others are still there.</span></div><div><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;">The red line in the picture below is the actual topography that I put into the model. The dz is set to 5m. The white area is the NAN value output from Mitgcm. </span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;">I think that the </span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;">topograohy</span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;"> is not rough.</span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;"> </span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;">I have checked the MITgcm manul, it means when </span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;">hFacMin is set to 0.1, the actual thickness of the bottom cell </span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;">can cover a range of discrete values 0.5m apart from 0.5m to 5m depending on the </span><span style="font-size: 10.5pt; line-height: 1.5; background-color: transparent;">value of the bottom depth (in bathyFile).So in the MITGCM calculation, the </span><span style="color: rgb(0, 0, 0); font-size: 10.5pt; line-height: 1.5; background-color: rgba(0, 0, 0, 0);">accuracy of the </span><span style="color: rgb(0, 0, 0); font-size: 10.5pt; line-height: 1.5; background-color: rgba(0, 0, 0, 0);">bathymetry in my model is up to 0.5m. Am I right? </span></div><div><img src="cid:_Foxmail.1@f548e940-2bb7-862d-3ebf-f6b5ddcfeb3d" border="0" width="676.5" height="368"></div>
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<div><span><div style="MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10pt"><div>JIATONG</div></div></span></div>
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