when should i use time step and time

sally · Post by **sally** » Sun Nov 12, 2006 4:45 am

i have a problem,

how do i know that i need to use the time step or time variable in my model

sometime when i have the units proble, i will add the time step in my model, then , my model checking is becoming ok.

i don't know is it right to do this

but , i didn't do it, my units will be wrong..

hope someone can help me

thank you in advance

LAUJJL · Post by **LAUJJL** » Sun Nov 12, 2006 11:06 am

Study the user guide and in very model explaned, check the units for every equations and try to understand them.
Regards.
JJ

sally · Post by **sally** » Tue Nov 14, 2006 2:32 am

hi

i have study the user guide, but it's not many model use the time and time step,

how can i know when i need to use the time or time step variable in my model

LAUJJL · Post by **LAUJJL** » Tue Nov 14, 2006 8:00 am

Look at the world model 2003, that is with the model samples.
The time is very much used, and instead of using the time step, they use the variable one year that is equal to the time step. They could have used time stem instead of one year.
I think that it is for a reason of lisibility. Studying these equations may help you.
Regards.
JJ