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If the runoff hydrograph in the figure results from a total rainfall of 110 mm and the catchment storage is linear, what is the peak flow when the rainfall is 220 mm?
A storm with hourly rainfall totals of 3 mm in the first hour and 5 mm in the second hour have been recorded on a catchment with the following 1 hour UH. What is the peak flow from the catchment (in m3/s)?
| Time (hrs) | UH (m3/s) |
| 0 | 0 |
| 1 | 5 |
| 2 | 10 |
| 3 | 5 |
| 4 | 0 |
Calculate the evapotranspiration for the day in mm
Calculate the net radiation Rn in MJ/m2/day
Calculate the net longwave radiation Rnl in MJ/m2/day
Calculate the blackbody longwave radiation in MJ/m2/day
Calculate the net solar radiation Rns in MJ/m2/day
Calculate the incoming solar radiation (Rs) in MJ/m2/day
Calculate the top of the atmosphere radiation Ra in MJ/m2/day
Calculate the vapour pressure deficit for the day in kPa