how to get 6 month ARI

[pakli85]

Hello DR QUEK

I need to know how to determine the 6 month ARI from IDF Curves in Volume 4, Design Fundamentals.Which clause should i referred?

Thanks

[drquek]

Figure 13.2 gives you the IDF curve for 1 year ARI for Kuala Lumpur. The 6 month ARI should be lower than that for 1 year ARI.

You can derive the 1 year ARI using graphical plot like that of Figure 13.2, then you can estimate the 6 month ARI by extrapolation.

[pakli85]

Thank you. Help me a lot.

[drquek]

You are welcome to post here in the future.

[azlina1]

Hello DR QUEK

I need to know how to determine the75th percentile 5 day storm event. Which table should i referred?

Thanks

[drquek]

Did you attend our workshop? If so please refer to Table 3.4 of Workshop No. 3. The values are listed there for all major urban centers in Malaysia.

If you did not attend and want to do this yourself, you need to apply the data from DID and do the analysis yourself.

[azlina1]

i didnt attend workshop no.3
so i need to get a rainfall data (mm) from DID...
for how long data... one year??

[drquek]

You need to get ALL the available data and analyse them.

[azlina1]

hello dr quek,

for designing pond which value i need to compare to adopt my design either:

Qpost development for 100 years < Qpre development for 10 years

or

Qpost development for 100 years < Qpre development for 100 years

if;

10 years = Minor system
100 years = Major system

[drquek]

Hello Azlina,

You should use:

Qpost development for 100 years < Qpre development for 100 years

[azlina1]

tqvm dr quek...help me a lot:)