preprocessing

Define a spatial 'Area of Interest' (AOI) around a constructed dam using hydrology data.
Dams have environmental and social impacts, both positive and negative.
Current analyses of dams have no consistent way to specify at what spatial extent we should evaluate these impacts.
'damAOI' implements methods to adjust reservoir polygons to match satellite-observed surface water areas, plot upstream and downstream rivers using elevation data and accumulated river flow, and draw buffers clipped by river basins around reservoirs and relevant rivers.
This helps to consistently determine the areas which could be impacted by dam construction, facilitating comparative analysis and informed infrastructure investments.

Chris Littleboy

damAOI

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

Isabel Jones

preprocessing function

<dl><dt>reservoir</dt>
<dd>An sf polygon, with an unstandardised raw reservoir</dd>
<dt>dem</dt>
<dd>A rast, showing elevation</dd>
<dt>fac</dt>
<dd>A rast, showing accumulated water flow along river</dd>
<dt>water_bodies</dt>
<dd>A rast, where 1 indicates water, NA otherwise</dd>
<dt>basins</dt>
<dd>An sf multipolygon, with the basins in the area around the dam</dd>
<dt>pourpoints</dt>
<dd>An sf multipoint, showing the points where rivers flow in and out of reservoirs</dd>
<dt>river_distance</dt>
<dd>A number, indicating the number of meters downstream and upstream for the area of interest. Defaults to 100000 (100km)</dd></dl>

Arguments

preprocessing — preprocessing

<dl>

<dt>reservoir</dt>
<dd>An sf polygon, with an unstandardised raw reservoir</dd>


<dt>dem</dt>
<dd>A rast, showing elevation</dd>


<dt>fac</dt>
<dd>A rast, showing accumulated water flow along river</dd>


<dt>water_bodies</dt>
<dd>A rast, where 1 indicates water, NA otherwise</dd>


<dt>basins</dt>
<dd>An sf multipolygon, with the basins in the area around the dam</dd>


<dt>pourpoints</dt>
<dd>An sf multipoint, showing the points where rivers flow in and out of reservoirs</dd>


<dt>river_distance</dt>
<dd>A number, indicating the number of meters downstream and upstream for the area of interest. Defaults to 100000 (100km)</dd>

</dl>

preprocessing: preprocessing

Description

Usage

Value

Arguments