Ocean Modeling Discussion

Thanks for your answer, Kate.

Hi all, Now I am trying to use ROMS to simulate the 3-dimensional trajectories of floats. I am a little confused with the vertical motion simulated with online float simulation. Is the vertical float's tracking process based on S coordinate or z coordinate? Because I think the results based on the ...

The grids I sent is in matlab.Maybe there is something wrong in the output data. Thank you very much for your help, Kate.

grids.JPG Thank you for your reply, Kate. So does it mean ubar(1,:,:) in Matlab is the same as ubar(0,:,:) in Fortran? In the output, the length of the first dimension of u is 37, and zeta is 38.I think the positions of u and zeta in output are like the figure I upload. Am I right? If I am right ...

The size of ubar is (37,644,60) and zeta is (38,644,60). zeta(1,:,:) are not zeros when there are no lands. So I don't think ubar(1,:,:) is the boundary.

onegrid(1,400)dxdy.tiff onegrid(2,400)dxdy.tiff Dear all: I have found why there are so many peaks. Because u(1,:,:,:) are zeros even not in land. And I checked the depth-averaged continuity equation for the grid (1,400). It is not closed just because of ubar(1,400,:) are zeros. For other grids ...

River discharge.tiff Dear all: I am calculating the river discharge with ROMS output. But the river discharge I acquired was not smooth along the channel. I have tried to look for many reasons, but they did not work. Does anyone come across the same problem as mine? Thank you for your time. Below ...

Thank you.

And I have seen that the calculation of total depth and vertically integrated mass flux in step2d_LF_AM3.h. The code is like this: DO j=-1+J_RANGE+1 DO i=-2+I_RANGE+1 cff=0.5_r8*om_v(i,j) cff1=cff*(Drhs(i,j)+Drhs(i,j-1)) DVom(i,j)=vbar(i,j,krhs)*cff1 # ifdef NEARSHORE_MELLOR DVSom(i,j)=vbar_stokes(i ...

Thank you very much. Which file is the code in? I am a beginner. I looked for them for a long time, but I　did not find them.

I calculated it both in one grid and in one section. As we know, pm and pn are related to the density locations. But in C grid, u and v points locations are different from the locations of density. How can we know the pm and pn related to the u and v locations? That is to say, in the continuity ...

And where can I acquire the magnitude of "m and n" in the transformation of equations in s-coordinate?

Dear everyone: I am calculating the integrated continuity equation and total transport flux with the ROMS output. When I calculate the integrated continuity equation, it is hardly closed. But when I calculate the net transport flux and the time variation of the volume in one grid, they are balanced ...

Thank you for your advices. I will have a try.

I am a beginner to learn ROMS. Now I want to simulate the tide in an ideal rectangle bay. But I don't know how to add the tidal information at the open boundary. My model is an ideal model. Should I download the desired tidal constituent database and associated software,yet?Or I just need to modify ...