The 2-hour unit hydrograph for a watershed is given below:

Time (hours)	0	1	2	3	4	5	6	7	8
UH (cfs)	0	100	200	400	300	200	100	50	0

Use this information to compute the following:

1. The volume of direct runoff V_d (in acre-feet) for the unit hydrograph.
2. The drainage area A (in mi²) of the watershed.

Assuming that the baseflow is a constant 20 cfs, predict the direct runoff hydrograph (in cfs) and the streamflow hydrograph (in cfs) for the following events:

3. A storm with 1.4 in of rainfall excess in the first 2-hour period, followed by 0.6 in of rainfall excess in the second 2-hour period.
4. A storm with 0.8 in of rainfall excess in the first 2-hour period, followed by no rainfall excess in the second 2-hour period and 1.2 in of rainfall excess in the third 2-hour period.