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Maximum Distance between Climate Station and Obstacle

Source: R/position.R
pos_max_dist.Rd

Checks if the climate station is positioned within the maximum allowable distance from the obstacle.

Usage

pos_max_dist(dist, obs_width, obs_height, ring = FALSE)

Arguments

dist

Distance between the climate station and the obstacle (e.g., forest) in meters (m).

obs_width

Width of the obstacle in meters (m).

obs_height

Height of the obstacle in meters (m).

ring

Logical. If TRUE, the obstacle surrounds the station circularly.

Value

A message indicating if the climate station is well positioned or if it needs to be moved closer to the obstacle.

Details

The maximum distance is calculated to ensure that the climate station's measurements are within a reasonable range from the obstacle. If the station is positioned too far, it needs to be moved closer.

Formula used:

  • For a circularly surrounded obstacle: \(d_{max} = 15 \cdot h\)

  • For an obstacle behind the station:

    • If \(h > w\): \(d_{max} = 15 \cdot w\)

    • If \(h < w\): \(d_{max} = 15 \cdot h\)

References

Bendix 2004, p. 189, eq. 9.1.

Examples

# Check maximum distance for an obstacle behind the station
pos_max_dist(dist = 500, obs_width = 50, obs_height = 30)
#> [1] "The climate station is positioned too far from the obstacle. It needs to be placed in a position closer than 450 m from the obstacle."

# Check maximum distance for a circularly surrounded obstacle
pos_max_dist(dist = 500, obs_width = 50, obs_height = 30, ring = TRUE)
#> [1] "The climate station is positioned too far from the obstacle. It needs to be placed in a position closer than 450 m from the obstacle."