Plotting geoid mistake when using geoshow

Hi I hope someone can help me. I have this matlab code with a .nc file. When I plot it becomes my geostrophic wind, vg, plot strange. I simply can not see what the error should be.

My code and nc file are in this link. https://drive.google.com/open?id=1vztWBO61lokpz8PWkPFW60NLGId_i0E8

In addition, my nc file has monthly data. Can I get an output with daily data?