ClayMinerals

Resumen

Calculates the Clay Minerals (CM) ratio from a multiband raster object and returns a raster object with the index values.

Debate

El ratio de Minerales arcillosos (CM) es un índice geológico que sirve para identificar las entidades minerales que contienen arcilla y alunita mediante dos bandas infrarrojas de onda corta (SWIR). Los CM se utilizan en la representación cartográfica de compuestos minerales.

CM = SWIR1 / SWIR2

For information about other multiband raster indexes, see the Band Arithmetic raster function.

The referenced raster dataset for the raster object is temporary. To make it permanent, you can call the raster object's save method.

Sintaxis

ClayMinerals (raster, {swir1_band_id}, {swir2_band_id})

Parámetro	Explicación	Tipo de datos
raster	The input raster.	Raster
swir1_band_id	The band ID of the shortwave infrared 1 (SWIR1) band. The band ID index uses one-based indexing. (El valor predeterminado es 6)	Integer
swir2_band_id	The band ID of the shortwave infrared 2 (SWIR2) band. The band ID index uses one-based indexing. (El valor predeterminado es 7)	Integer

Valor de retorno

Tipo de datos	Explicación
Raster	The output raster object with the Clay Minerals ratio values.

Muestra de código

ClayMinerals example

Calculates the Clay Minerals ratio for a Sentinel-2 image.

import arcpy

ClayMinerals_raster = arcpy.sa.ClayMinerals("Sentinel2.tif", 11, 12)