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Multispectral Image

Last updated: October 7, 2021

Overview

An ARD multispectral image is a 4 or 8-band image that has been minimally processed for analytics. The following pre-processing steps are applied:

  • Atmospheric compensation
  • Orthorectification to native resolution, as captured by the sensor

Multispectral images are saved as Cloud Optimized GeoTIFF (COG):

  • processed using GDAL's COG output format using default settings
  • DEFLATE compression
  • NoData pixels are encoded in a mask band

Example image

This example shows a multispectral image over San Francisco, CA USA.

multispectral ARD image

Bands

4-band multispectral imagery has the following bands:

band name common name description
BAND_B blue Blue
BAND_G green Green
BAND_R red Red
BAND_IR nir08 Near Infrared 1

8-band multispectral imagery has the following bands:

band name common name description
BAND_B blue Blue
BAND_C coastal Coastal blue
BAND_G green Green
BAND_R red Red
BAND_IR nir08 Near Infrared 1
BAND_Y yellow Yellow
BAND_RE rededge Red Edge 1
BAND_N2 nir09 Near Infrared 2

File information

File type: Raster GeoTIFF

File name: {acquisitionID}-ms.tif

File path: bucket or location/prefix/UTM zone/quadkey/acquisition date/

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