ITU rain region

[mohamad]

dear friends
i want to import rain data of my country to pathloss4.0
my country is iran
i dont know what region of ITU rain region(A,...,Q) should be choosed
thank for your help
mohamad

[byja]

Try this instead. It's a program for MATLAB based on 837-5 recommendation data. It will give you exact rainfall rate for given coordinates and time percentage.
Just looking at ITU maps is not very precise, and I guess a country the size of Iran just won't fit into one category.
For example, back here it's region K (42 mm/hr), even though in the coastal areas we have heavier showers. Even this little program calculates 56, but I'd say it's even more. Two years ago one shower knocked out a lot of 23G and 26G links our client installed.

[tanbao]

dear friends
i want to import rain data of my country to pathloss4.0
my country is iran
i dont know what region of ITU rain region(A,...,Q) should be choosed
thank for your help
mohamad

Dear friend

U can see your ITU-rain region in this attachment.

[mohamad]

hi byja
thanks a lot for the program that calculate the rainfall amount
i take a mistake with this program
i want the amount of rainfall in 1 specific location (lat,lon)
but when i run the program the answer is the matrix by size of 161*321
i read the comments perfectly but i did'nt understand that in which line of codes should i enter my interested latitude and longitude
with regards
mohamad

[samershahin]

thanks for your help.. i needed answers for this long time ago...

[Cost_Reducer]

hello,

byja: can you send me the doc to my mail please?? Or upload to rapidshare? my mail:rfplanninggroup@googlemail.com


tanbao: can you send me the doc to my mail pleas??

Many thanks in advance...:hug:

[byja]

i want the amount of rainfall in 1 specific location (lat,lon)
but when i run the program the answer is the matrix by size of 161*321

Sorry about the late reply.
The program itself is a function you call. You just copy all those files into your MATLAB work directory, and then you can call the function within the command window. For example, for my hometown, I'd type something like:

[value1 value2]=itur_p837_5(0.01,44.8,20.47)
and it will return

value1 =

35.1550


value2 =

3.4136
And the value1 is what we're looking for, the rain intensity exceeded for 0.01% of time.

For example, for Teheran, we'd get:


>> [value1 value2]=itur_p837_5(0.01,35.7,51.4)

value1 =

19.8172


value2 =

2.1849

meaning for performance caluculations of radio relay links in Teheran, you can use rain intensity of 20mm/hr.

[tanbao]

hello,

byja: can you send me the doc to my mail please?? Or upload to rapidshare? my mail:rfplanninggroup@googlemail.com


tanbao: can you send me the doc to my mail pleas??

Many thanks in advance...:hug:

dear my friend,
what's document do you want?