Re: [ferret_users] How to assign/fill a time series value to a spatial grid?

Dear Karnan,

On Tue, Apr 25, 2023 at 8:34 PM Karnan C <karnanc6@xxxxxxxxx> wrote:

Dear Ferreters,
I have a time series measurements for one point in a text file. I want to fill the same TS value to an area containing multiple points (lat/lon) and convert to a spatial-time series data in .nc format. See the attachment.

or I have a grid file (.nc) with multiple time steps and I want to replace all values by a single value in each time step.

What the image you attach depicts can be written, in Ferret, as

!! your_grid_file.nc contains "xytdata",
!! a variable defined on (x,y,t) grid
set data your_grid_file

let varXYT = 0 * x[gx=xytdata] + 0 * y[gy=xytdata] + timeseries

In this case, the time axis of xytdata is ignored and the time axis of the timeseries is taken.

If your timeseries is in a text file, then it would be easier to utilize the time axis of xytdata when you read the text file, assuming that the two time axes are identical: