About LANDUSE.TBL use of summer/Winter data

[cross]

The LANDUSE.TBL file has summer and winter parameters, how does WRF knows when use summer or winter? the months are set by default or can be modified in other file? and if it's used in the southern hemisphere, is it ok to use the same file or has to be adapted?

 

[Ming Chen]

Please take a look at the code "phys/module_physics_init.F", in wit you can find the piece of code:

1850 ! Determine season (summer=1, winter=2)
1851    ISN=1
1852    IF(JULDAY.LT.105.OR.JULDAY.GT.288)ISN=2
1853    IF(CEN_LAT.LT.0.0)ISN=3-ISN
1854

ISN is the parameter that determines winter/summer.

 

[cross]

Please take a look at the code "phys/module_physics_init.F", in wit you can find the piece of code:

1850 ! Determine season (summer=1, winter=2)
1851    ISN=1
1852    IF(JULDAY.LT.105.OR.JULDAY.GT.288)ISN=2
1853    IF(CEN_LAT.LT.0.0)ISN=3-ISN
1854

ISN is the parameter that determines winter/summer.

Thanks! that clears it out.

 

[Ming Chen]

Let us know if you have more questions.