thresholdCalibrate: Light Threshold Calibration

In SWotherspoon/BAStag: Basic data processing for light based geolocation archival tags

Description

Calibrate threshold light level to solar zenith angle

Usage

thresholdCalibrate(
  tagdata,
  lon,
  lat,
  max.adjust = TRUE,
  col = c("dodgerblue", "firebrick"),
  ...
)

Arguments

tagdata	a dataframe with columns Date and Light that are the sequence of sample times (as POSIXct) and light levels recorded by the tag.
lon	calibration longitude.
lat	calibration latitude.
max.adjust	adjust twilights for tags that report the maximum light interval observed in the preceeding sampling interval.
col	colors for increasing and decreasing zenith angles
...	additional arguments to pass to plot.

Details

Given data for a known location, this plots the recorded light against the solar zenith angle to allow observed light levels to be calibrated to solar zenith angle.

SWotherspoon/BAStag documentation built on March 29, 2021, 2:47 a.m.