Question
The rate of this process exponentially decays from an initial rate to a final, constant rate in Horton's equation. For 10 points each:
[10m] Name this process, which accounts for the majority of the “losses” part of a hyetograph (“high”-EHT-oh-graph). This process is the downward movement of rainwater into soil.
ANSWER: infiltration
[10e] Excess precipitation above a soil's infiltration capacity can produce this phenomenon, in which the excess water flows over the surface, eroding soil and carrying pollutants with it.
ANSWER: surface runoff [accept direct runoff]
[10h] The total volume of excess precipitation can be calculated from a hyetograph using an iterative method named for this quantity, which is the rate of losses in inches per hour if you assume that infiltration losses occur at a constant rate.
ANSWER: phi index
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Summary
| 2023 BHSU @ Berkeley | 03/18/2023 | Y | 3 | 13.33 | 67% | 67% | 0% |
| 2023 BHSU @ Maryland | 03/11/2023 | Y | 3 | 10.00 | 100% | 0% | 0% |
| 2023 BHSU @ Northwestern | 02/25/2023 | Y | 6 | 11.67 | 100% | 17% | 0% |
| 2023 BHSU Online | 04/15/2023 | Y | 4 | 15.00 | 75% | 50% | 25% |
| 2023 BHSU @ Sheffield | 04/15/2023 | Y | 2 | 10.00 | 100% | 0% | 0% |
| 2023 BHSU @ Waterloo | 04/15/2023 | Y | 3 | 16.67 | 100% | 67% | 0% |
| 2023 BHSU @ Yale | 04/08/2023 | Y | 3 | 16.67 | 100% | 67% | 0% |
Data
| Oxford Hornets | Broken Imperial Nomads | 0 | 10 | 0 | 10 |
| Magisters Ludi | Buzzers Karamazov | 0 | 10 | 0 | 10 |