open TELEMAC-MASCARET The mathematically superior suite of solvers

I'm relatively new in Telemac but eager to learn it.

I'm looking to have rainfall varying with time and space in my domain. I was able to have constant rain using the keyword, RAIN OR EVAPORATION & RAIN OR EVAPORATION IN MM PER DAY. I went further and implemented a variable rainfall in time using the CN rainfall-runoff model, which it worked well. My next step is to implement a model with rainfall varying in time and space. I found only one post about a similar case in which they suggested to use the wind_txy example with a modified subroutine to account for rainfall instead of wind, which I would like to have further information about it, if possible. However, I found the attached paper, "Modification of Telemac 2D for Storm Surge Use," in section III.B, the author mentioned a new keyword called "TIME AND SPACE VARYING RAIN" which I was not able to find more information if this was added to the latest version of Telamac 2D. I would appreciate it if someone in the forum could guide me to the implementation of my case or to the new keyword mentioned above.

Thank you in advance for your support.