Near-Infrared (NIR) Reflectance
Definition
The portion of the electromagnetic spectrum (700-1200 nm) that healthy green vegetation reflects strongly due to the structure of chloroplasts. Stressed, sparse, or compositionally different vegetation reflects NIR differently, creating a detectable contrast in aerial or drone imagery.
Related terms
- Cadaver Decomposition Island (CDI)
- The localised area of soil and vegetation altered by the decomposition fluids and gases released from a body. A CDI has a...
- Nitrophilous Plant
- A plant species that grows preferentially on nitrogen-rich soils. Examples include stinging nettle (Urtica dioica), broad-leaved dock (Rumex obtusifolius), and elder (Sambucus...
- Normalized Difference Vegetation Index (NDVI)
- A widely used spectral index calculated as (NIR - Red) / (NIR + Red). Values range from -1 to +1; healthy dense...
- Phytosociology
- The study of plant community composition and its relationship to environmental conditions. In forensic contexts, the plant assemblage over a suspected burial...
- Soil Inversion
- The displacement of soil horizons when ground is dug. Subsoil is brought to the surface and topsoil is buried, disrupting the established...
Explained in
- Vegetational Disturbance and Clandestine Grave DetectionThe portion of the electromagnetic spectrum (700-1200 nm) that healthy green vegetation reflects strongly due to the structure of chloroplasts. Stressed, spars...