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[ferret_users] putting 1D variable into 2D (lat,depth) for using in objective analysis

Hello all,


I’m trying to interpolate observations of NO3 using the function “scat2gridgauss_yz”.


I successfully read in my data, which is structured as 1D column data, which looks like so:


As you can see, I have 37,200 observations.


I now want to select my data from the Indian Ocean, where I eventually would like to do my interpolation using scat2gridgauss_yz.

Plotting the locations it seems like this has worked nicely.




However, the problem then arises when I want to use “scat2gridgauss_yz” to interpolate this data. My command is:

And when trying to plot the data, I have an error. This error is related (I think!) to the fact that my NO3 data is in a 1D form. That is, it doesn’t have y,z coordinates. Scat2gridgauss requires that the variable in the 3rd argument be of 2 dimensions. Specifically, it must relate to the 2 dimensions of the 1st and 2nd arguments, in this case Latitude and Depth.


My question, therefore, is how to place my 1D NO3 data onto 2 dimensions of the lat,depth coordinates.


Thanks all,



Pearse J. Buchanan

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania


PhD Candidate / CSIRO-UTAS Quantitative Marine Science

ARC Centre of Excellence in Climate System Science – UTAS student representative


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