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What specific data is required to create a geomorphologic instantaneous unit hydrograph?

OpenAI's Answer

To create a geomorphologic instantaneous unit hydrograph (GIUH), you typically need the following specific data:

  1. Catchment Area Characteristics:

    • Watershed area and shape
    • Stream network configuration
    • Slopes and elevation data
  2. Geomorphological Parameters:

    • Horton-Strahler stream order
    • Drainage density
    • Bifurcation ratios
  3. Hydrological Data:

    • Rainfall intensity and distribution
    • Runoff data, though GIUH can be useful in ungauged catchments where this is scarce

These inputs help in modeling the runoff response of a watershed based on its physical characteristics without the need for extensive hydrological data collection.

For more in-depth details and case studies, check the sources like The GIUH Method Overview and Velocity Parameter Estimation.

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