make.windfarms: Make wind farm construction scenario

In jacobnabe/DEPONS2R: Read, Plot and Analyse Output from the DEPONS Model

Make wind farm construction scenario

Description

Produce a hypothetical wind farm construction scenario, specifying the position and timing of individual piling events, as well as the sound source level. All wind farms are assumed to consist of the same number of turbines, laid out in a rectangular grid. The start and end tick (i.e. the number of half-hour intervals since simulation start) is generated based on provided values for the time it required for each piling and the time between piling events.

Usage

make.windfarms(
  area.file,
  area.def,
  n.wf,
  n.turb,
  turb.dist,
  min.wf.dist,
  impact,
  constr.start,
  constr.end,
  constr.time,
  constr.break,
  iterate = 10000,
  verbose = FALSE,
  wf.coords = "random"
)

Arguments

area.file	Name of the raster file specifying where the wind farms should be constructed.
area.def	Value in area.file for the areas were wind farms can be located
n.wf	Number of wind farms to construct
n.turb	Total number of turbines to construct
turb.dist	Distance between turbines within a wind farm (meters)
min.wf.dist	Minimum distance between wind farms (meters)
impact	Sound source level (dB); sound emitted from turbines during construction, i.e. from tickStart to tickEnd (including both start and end)
constr.start	The tick at which construction of the first turbine starts.
constr.end	The tick at which construction of the very last turbine in the last wind farm ends.
constr.time	The time it takes to construct a single wind turbine (number of ticks).
constr.break	Break between individual pilings within a wind farm, counted in number of half-hour 'ticks'.
iterate	Number of times to try finding a spot for a new wind farm that is sufficiently far from the nearest neighbouring wind farm (>min.wf.dist). The number also defines the number of random positions to search through.
verbose	Logical; whether messages should be printed to console.
wf.coords	Possible location of the south-western corner of the wind farms. Defaults to the text "random", but can also be a data frame with coordinates in the columns x and y.

Value

data.frame specifying the position of each turbine in a wind farm, along with the start time and end time for pile driving of the turbine foundation and the sound source level during pile driving. Can be exported as a text file and used for controlling DEPONS simulations.

Note

The parameters constr.start, constr.end, constr.time, and constr.break are truncated to nearest integer value. Construction of wind farms starts in WF001 at tick constr.start. Each turbine foundation is piled over a period of constr.time, followed by a noise-free period of constr.break. Several pile driving operations may take place at the same time, to ensure that the last piling ends before constr.end.

jacobnabe/DEPONS2R documentation built on Nov. 20, 2024, 10:22 p.m.