Hydrology: Basic Concepts and Challenges - The Regional Water Balance

3 important questions on Hydrology: Basic Concepts and Challenges - The Regional Water Balance

What is the potential water resource?

The average runoff represented by the maximum rate at which nature makes water available for human use and management.

What are the main error sources in precipitation measurements according to a global study of water balances?

  1. Poor distribution of gauging stations
  2. Errors in measurement at individual gauges
  3. Failure to sample high elevations, where precipitation usually increases due to orographic effects.

Influencing factors of mu(discharge)  / mu(runoff)?

  1. Geology
  2. Watershed size (larger watersheds tend to collect the ground-water flows of tributaries and have mu(discharge/mu(runoff) closer to 1
  3. Relative position or elevation of a watershed (i.e. headwater vs. coastal zones)

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