calc_scene_snowstats: calc_scene_snowstats

In SebEagle/snowcoveR: Calculates the snow extent of a Sentinel 2 & Landsat 8 time series and plots the results as 3D-gif animations

Description

This function named 'calc_scene_snowstats' loads the snow/cloud/freesurface classification tif file and calculates cover percentages.

This is done for the whole testsite, to decide, whether the scene will be used
for the timeseries or not. Used Thresholds for decision:
     - cloud cover less than input threshold
     - cloud cover less than freesurface
 => Decision is stored as TRUE or FALSE in a text-file in the satellite scene subfolder.

Additionally snow/cloud/freesurface cover percentages are also calculated for each height zone derrived from DEM file and stored as table in satellite scene subfolder.

Usage

calc_scene_snowstats(store_directory, dem_subdir, height_zone_size,
  threshold_cloud, last_snow = FALSE)

Arguments

store_directory	Directory where all satellite scenes are stored in subfolders
dem_subdir	subdirectory, where DEM files are stored
height_zone_size	defines the size (height difference) of the altitudinal zones for which the snowcover percentages are calculated
thresholds_cloud	thresholds for cloud cover to decide, whether the scene will be used in time series or not

Author(s)

Sebastian Buchelt (M.Sc. EAGLE - University of Wuerzburg)

SebEagle/snowcoveR documentation built on May 31, 2019, 12:07 p.m.