modisQc: MODIS Quality Assessment Extractor
In RemoteSensing: Remote Sensing

Description Usage Arguments Details Note Author(s) References

Makes Human-readable images of Quality Assessment binary bits from MOD09A and MOD09Q products.

modis.qc250a(pixel)
modis.qc250b(pixel)
modis.qc250c(pixel, bandno) 
modis.qc250d(pixel) 
modis.qc250e(pixel)
modis.qc250f(pixel)
modis.qc500a(pixel)
modis.qc500c(pixel, bandno) 
modis.qc500d(pixel) 
modis.qc500e(pixel)

`pixel`	—
`bandno`	—

	`modis.qc250a`	returns MODLAND QA bits
	`modis.qc250b`	returns Cloud State
	`modis.qc250c`	returns BAND 1/2 data quality
	`modis.qc250d`	returns Atmospheric Correction performed
	`modis.qc250e`	returns Adjacency Correction performed
	`modis.qc250f`	returns Different orbit from 500m
	`modis.qc500a`	returns MODLAND QA bits
	`modis.qc500c`	returns BAND 1/2/3/4/5/6/7 data quality
	`modis.qc500d`	returns Atmospheric Correction performed
	`modis.qc500e`	returns Adjacency Correction performed

In MOD09A1: It seems that cloud related info is not filled properly in the standard QC (MOD09A1 in this module) since version 3, State-QA 500m images (MOD09A1s in this module) should be used (see Vermote et al., 2008).

Yann Chemin

Vermote E.F., Kotchenova S.Y., Ray J.P. MODIS Surface Reflectance User's Guide. Version 1.2. June 2008. MODIS Land Surface Reflectance Science Computing Facility.

RemoteSensing documentation built on Feb. 7, 2020, 3 p.m.