[GRASS-git] [OSGeo/grass-addons] 8c956e: r.hydro.flatten: update to make shorelines match U...

[dnewcomb]

  Branch: refs/heads/grass8
  Home:   https://github.com/OSGeo/grass-addons
  Commit: 8c956e0a05c7a77d959a07e3332aac5b5912effa
      https://github.com/OSGeo/grass-addons/commit/8c956e0a05c7a77d959a07e3332aac5b5912effa
  Author: dnewcomb <gistinker at gmail.com>
  Date:   2025-06-12 (Thu, 12 Jun 2025)

  Changed paths:
    M src/raster/r.hydro.flatten/r.hydro.flatten.py

  Log Message:
  -----------
  r.hydro.flatten: update to make shorelines match USGS 3DEP requirements (#1417)

* Update r.hydro.flatten.py to make shortelines match USGS 3DEP requirements

 The USGS 3DEP standards require that the shoreline of a water body must be above the level of the modeled impoundment surface in a DEM. This section compares the elevation of the modeled water surface to the shoreline elevations. For estimated elevations of the shoreline that are less than or equal to the modeled water surface, the elevation of the shoreline is raised to .001 vertical units) above the modeled water level.   The distance of .001 meters or .001 feet is well below the 0.1 meter vertical accuracy of the current standards for LiDAR collection.

* formatting and consistent naming

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Co-authored-by: Anna Petrasova <kratochanna at gmail.com>



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