How to project 3D wave to an orthographic map

Hello,

I have a 3D wave (1x73x144) and two 1D waves: one for latitude (n=73) and one for longitude (n=144). Before appending this 3D wave to an orthographic map, I need to project the data (currently in degrees) into an orthographic projection. However, I am unsure how to correctly transform these waves for the projection.

Could someone kindly guide me on how to accomplish this?

Thanks in advance!

J