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Estabilidad del Terreno en Corredores de Ductos

Monitoreo del derecho de vía para esmectita expansiva y humedad superficial, diferenciado entre dos fechas sobre una malla común.

Sigue arcillas expansivas y humedad a lo largo de un corredor, para que las cuadrillas vayan adonde el terreno realmente se movió.

Estabilidad del Terreno en Corredores de Ductos
In view

Right-of-way corridor: swelling smectite clay and surface moisture, differenced between two dates.

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.

0.400.601.400 µm1.610 µm1.820 µm2.029 µm2.239 µm2.449 µmWavelength (µm)Reflectance
Referencia de laboratorio
Muestreo del sensor
Rango de trabajo
Profundidad de banda0.21
Ancho del rasgo32 nm
Espaciado de bandas7.4 nm

QUÉ ENCUENTRA

Qué detecta.

MaterialEntorno típicoQué puede confundirlo
Expansive Smectite Clays (Montmorillonite)Pipeline rights-of-way crossing unstable slopes and shale formationsDense standing grass cover in corridor ditches

MÉTODO

Cómo funciona.

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

01Step 1

Corridor masking

The pipeline centreline is buffered to the width you specify and everything outside it is dropped before any layer is computed.

02Step 2

Clay and moisture band depths

Continuum-removed depths for the expansive 2:1 clays and for surface water. These are exact arithmetic on reflectance, so the same scene returns the same numbers every time.

03Step 3

Slope and aspect context

Steepness and aspect are carried alongside the spectral layers so a wet clay reading on a steep face reads differently from the same reading on a flat one. They are shown together, not fused into a safety factor.

04Step 4

Change between dates

Two dates are differenced on the same grid, with the scene-wide median offset surfaced so a change in illumination is not read as a change in ground. Comparing across sensors or across engines is refused.

ESPECIFICACIONES

Qué obtiene, y sobre qué corre.

Valores entregadosBand depths and their difference between dates, floating point
SalidaCorridor clay and moisture layers, with change
Plazo de entregaBoth dates must be on disk before differencing starts; download dominates
Formatos
GeoJSON Corridor PolygonsCloud-Optimized GeoTIFF (COG)Provenance record (both scene ids, method version, offset applied)

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 #2 · Section 6.1.

Leer el artículo

Alcance

Reads the ground along the corridor, not the pipe. Wall condition is invisible to an optical sensor.