Why does the K index return only one value？

[ShareRingNS]

I passed in a multi-dimensional array but only returned a value. How can I return an array of the same size

[dopplershift]

Well, by definition k_index takes a profile and returns a single value, so there's no way you can get output the same size as the input. I assume you mean you passed in a 3D grid and didn't get 2D output? Can you share some sample code showing what you tried? (Be sure to include the shape of the arrays, or better yet, links to the data you're using.)

[ShareRingNS]

I tried to broadcast the pressure to the same scale as the temperature field, and I got the K index corresponding to each grid.Thanks.

[ShareRingNS]

Well, by definition k_index takes a profile and returns a single value, so there's no way you can get output the same size as the input. I assume you mean you passed in a 3D grid and didn't get 2D output? Can you share some sample code showing what you tried? (Be sure to include the shape of the arrays, or better yet, links to the data you're using.)

I use the ERA5 reanalysis data on pressure levels in the experiment，pressure ---->(3, ) temperature ----->(3,151,151) dewpoint -----> (3,151,151), and I want to calculate the lifting index on each grid now, but I don't know how to use my data to calculate parcel_ profile

[dopplershift]

Thanks for the example. I think there's a bug in interpolate_1d #2714. Given the arrays you have, I would expect (with proper broadcasting), that k_index return a (151, 151) array for those inputs.