Axine Labs
Free / commercial imagery

Estabilidad y Filtraciones de Presas de Relaves

Monitoreo de terraplenes para humedad superficial y eflorescencia de sulfato, diferenciado contra una línea base de fecha seca.

Monitorea humedad y meteorización de sulfato en caras expuestas del terraplén, diferenciadas entre fechas.

Estabilidad y Filtraciones de Presas de Relaves
In view

Mine spoil tips. The layer watches embankment faces for moisture change.

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 banda0.50
Ancho del rasgo55 nm
Espaciado de bandas7.4 nm

QUÉ ENCUENTRA

Qué detecta.

MaterialEntorno típicoQué puede confundirlo
Moisture Seepage & Phreatic Line EmergenceTailings storage facilities (TSF), dam downstream slopes, and buttress toesRecent rainfall events (requires baseline temporal subtraction)

MÉTODO

Cómo funciona.

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

01Step 1

Grid handling over steep ground

Imagery is reprojected onto a common grid rather than resampled, which matters on an embankment face where a small horizontal error moves a pixel a long way down the slope.

02Step 2

Surface moisture band depth

Water absorption depth, normalised by brightness. Which feature carries the measurement depends on what the sensor in front of it actually covers.

03Step 3

Difference against a dry baseline

A dry date is subtracted so uniform rainfall wetting cancels and only persistent wet ground remains. The scene-wide median offset is surfaced and can be removed.

04Step 4

Zones reported, not scored

Persistent wet zones are outlined and handed over with their coordinates. No stability score is computed, because a spectral reading of a surface cannot support one.

ESPECIFICACIONES

Qué obtiene, y sobre qué corre.

Valores entregadosBand depths and their difference between dates, floating point
SalidaEmbankment moisture and efflorescence layers, with change
Plazo de entregaBoth dates must be held before differencing; the dry baseline is usually the constraint
Formatos
Cloud-Optimized GeoTIFF (COG)Vector Zone Polygons (GeoJSON)Provenance record (both scene ids, method version, offset applied)

Condiciones que necesita

Sun angle limit:55°
Cloud cover limit:5%
Vegetation cover limit:30%

Method and checks are documented in Axine Applied Spectroscopy Paper #3 · Section 7.1.

Leer el artículo

Alcance

Reads the exposed face only. Pore pressure and the phreatic surface stay with your piezometers.