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modiscloud (version 0.14)

make_cloudcount_product: Take a cloudcount raster and a number-of-observations raster and make a fraction cloud product

Description

Takes a cloudcount raster, and a number-of-observations raster, and makes a fraction cloud product.

Usage

make_cloudcount_product(master_bitgridvalsCC, master_bitgridvals0, num_its, grd, xdim_new, ydim_new, countzeros = FALSE)

Arguments

master_bitgridvalsCC
Cloud count raster
master_bitgridvals0
Raster indicating the count of valid observations
num_its
The total number of images or files, i.e. the number of attempts to see clouds
grd
An input grid with the appropriate projection and extent to match the rasters
xdim_new
The x-dimension (in # of pixels; i.e. # of columns) of the input/output grids
ydim_new
The y-dimension (in # of pixels; i.e. # of rows) of the input/output grids
countzeros
Should zeros be counted? TRUE or FALSE

Value

grd_final, a grid with fraction cloudy

References

Ackerman S, Frey R, Strabala K, Liu Y, Gumley L, Baum B and Menzel P (2010). "Discriminating clear-sky from cloud with MODIS algorithm theoretical basis document (MOD35)." MODIS Cloud Mask Team, Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin - Madison. .

GoldsmithMatzkeDawson2013

See Also

sum_bitgrid

Examples

Run this code
# For examples, see the function numslist_to_grd()

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