Precipitation Flashcards
1
Q
2 types of precipitation models
A
synthetic storms
gauge data
2
Q
types of synthetic storms
A
user specified hyetograph
frequency based storm
SCS hypothetical storm
SPH
3
Q
3 storm characteristics
A
spatial
temporial
depth duration frequency
4
Q
define 3rd quartile
2nd tercile
A
3rd quartile- peak occurs just after end of 3rd quater
2nd tercile-peak occurs just after end of 2nd third
5
Q
what does it mean by nested/balanced storms
A
shorter duration storms are nested in longer duration storms of same frequency
6
Q
advantages of balanced?
A
allows multi duration storm duration
important for consistencey of resultcan be balanced regardless of the time of peak
7
Q
what need for frequency based design storm
A
return period
rainfall depth for each time interval up to storm duration
storm area
