adjustreservoirpolygon: adjust polygon of reservoir to reference surface water extent...

In damAOI: Create an 'Area of Interest' Around a Constructed Dam for Comparative Impact Evaluations

adjust polygon of reservoir to reference surface water extent map

Description

adjust polygon of reservoir to reference surface water extent map

Usage

adjustreservoirpolygon(
  reservoir,
  water_bodies,
  dem,
  poss_expand = 20000,
  wbjc = 0
)

Arguments

reservoir	An sf polygon, with an unstandardised raw reservoir
water_bodies	A rast, where 1 indicates water, NA otherwise
dem	A rast, showing elevation
poss_expand	A number, indicating the number of meters away from the raw reservoir the reservoir may expand to. Default is 20000 (20km).
wbjc	A number indicating a "water body join correction". This is a small buffer zone for the reservoir polygon to ensure that it is contiguous (important where there are small channels connecting different parts of the same water body). Default is 0 but it is necessary for some dams to include a small buffer, particularly if the reservoir has areas which are less wide than the resolution of the underlying DEM.

Value

An sf polygon with an adjusted reservoir polygon

damAOI documentation built on Sept. 11, 2024, 8:40 p.m.