nc_image_stats: Get percent coverage of netCDF satellite image

In BIO-RSG/oceancolouR: Various Functions for Satellite and Data Analysis

Get percent coverage of netCDF satellite image

Description

Given a filename, W/E/S/N boundaries, and a variable name, check the percent coverage for that variable within the boundaries.

Usage

nc_image_stats(
  file,
  w,
  e,
  s,
  n,
  var = "geophysical_data/Rrs_555",
  latvar = "navigation_data/latitude",
  lonvar = "navigation_data/longitude"
)

Arguments

file	String, netCDF filename
w, e, s, n	Numeric values, west/east/south/north in decimal degrees
var	String, name of variable to check for percent coverage (full path to the variable within the netCDF, e.g. geophysical_data/Rrs_555)
latvar	String, full path and name of the latitude variable
lonvar	String, full path and name of the longitude variable

Value

Dataframe containing filename, number of valid pixels, total number of pixels, and percent coverage. If file can't be read, "try-error" is returned instead.

BIO-RSG/oceancolouR documentation built on April 25, 2024, 12:28 p.m.