Axine Labs
Free / commercial imagery

Triagem de Estresse do Dossel

Conteúdo de água do dossel, comparado dentro de um talhão e entre aquisições.

Conteúdo de água foliar, medido contra uma linha de base de matéria seca e comparado entre aquisições.

Triagem de Estresse do Dossel
In view

Canopy water content across a conifer stand, read against a dry-matter baseline.

O QUE ELA ENCONTRA

O que ela detecta.

MaterialContexto típicoO que pode confundi-la
Foliar Equivalent Water Thickness (EWT)Commercial timber plantations, watershed forests, and drought-affected standsUnderstory grass drying and crown architectural shadowing

MÉTODO

Como funciona.

Entra reflectância calibrada, e cada pixel é ajustado contra uma biblioteca pública de referência.

01Step 1

Foliar water band depth

Foliar water absorption depth, taken against a dry-matter baseline so that leaf structure does not masquerade as moisture.

02Step 2

Stand-relative comparison

Moisture is compared within a stand and across dates, so every reading is judged against the ground it belongs to.

03Step 3

Structural correction

A canopy scattering model separates water content from canopy structure, so a dense crown does not read as a wet one.

04Step 4

Evaluability masking

Crown gaps where soil or rock dominates the pixel are marked, not averaged in.

ESPECIFICAÇÕES

O que você recebe, e sobre o que ela roda.

Valores entreguesBand depth, floating point, relative within a stand
SaídaCanopy water band depth map
Prazo de entregaQuoted with the order once this moves out of development
Formatos
Cloud-Optimized GeoTIFF (COG)Vector Stand Polygons (GeoJSON)Provenance record (engine, model version, scene ids)

Condições de que precisa

Sun angle limit:55°
Cloud cover limit:5%
Vegetation cover limit:100%

Method and checks are documented in Axine Applied Spectroscopy Paper #4 · Section 3.2.

Ler o artigo

Escopo

Needs continuous canopy cover. It reads crown moisture, compared within a stand rather than in absolute terms.