Axine Labs
Free / commercial imagery

Exposición del Suelo y Residuos de Cultivo

Residuos fraccionales y suelo desnudo, separando la celulosa seca del fondo mineral de arcilla que tiene debajo.

Cobertura de residuos de cultivo y arcilla superficial, para clases de residuos y labranza.

Exposición del Suelo y Residuos de Cultivo
In view

Freshly ploughed fields, the bare-soil window the layer reads.

LO QUE VE EL SENSOR

Qué busca esta capa.

La referencia de laboratorio de cada material, y qué captura de ella el espaciado de bandas del sensor. La banda sombreada marca el rango que lee el método.

0.400.600.802.000 µm2.090 µm2.180 µm2.269 µm2.359 µm2.449 µmWavelength (µm)Reflectance
Referencia de laboratorio
Muestreo del sensor
Rango de trabajo
Profundidad de banda0.31
Ancho del rasgo15 nm
Espaciado de bandas7.4 nm

QUÉ ENCUENTRA

Qué detecta.

MaterialEntorno típicoQué puede confundirlo
Fractional Crop Residue Cover (fCover)Agricultural croplands under conservation tillage / no-till managementMoisture in wet residue suppressing cellulose absorption depth

MÉTODO

Cómo funciona.

Entra reflectancia calibrada, y cada píxel se ajusta contra una biblioteca pública de referencia.

01Step 1

Band feasibility check

The three wavelengths the index needs are checked against the sensor's own band centres and widths before the job starts. Two of them landing on the same source band is refused outright: the result would be identically zero everywhere and would still render.

02Step 2

Cellulose absorption index

The published cellulose index is applied unchanged, which separates dry plant material from the flatter curve of bare soil.

03Step 3

Fraction unmixing

Mixed field pixels are decomposed into residue, green crop and bare mineral soil.

04Step 4

Tillage classes

Fields are binned using the published conservation tillage definition, which sets its line at thirty percent residue cover. The fraction is reported alongside the class, so a field near the line is visible as such.

ESPECIFICACIONES

Qué obtiene, y sobre qué corre.

Valores entregadosIndex value and cover fractions, floating point
SalidaCrop residue and bare soil raster
Plazo de entregaArchive jobs queue behind granule download; the job page names the stage it is in
Formatos
Cloud-Optimized GeoTIFF (COG)Vector Parcel Contours (GeoJSON)Provenance record (scene ids, method version, evaluable fraction)

Condiciones que necesita

Sun angle limit:60°
Cloud cover limit:10%
Vegetation cover limit:50%

Method and checks are documented in Axine Applied Spectroscopy Paper #5 · Section 3.2.

Leer el artículo

Alcance

Needs dry, bare ground. A scene taken soon after rain understates residue cover.