Multispectral Image
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
COGoutput format using default settings DEFLATEcompression- NoData pixels are encoded in a mask band
Example image
This example shows a multispectral image over San Francisco, CA USA.
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/