Seagrass Habitat Maps for Tasmanian Waters Using Remote Sensing

NESP MaC 3.6 mapped the extent and composition of temperate subtidal seagrass beds in the Tayaritja Sea Country (Furneaux Group, Tasmania). The project used high-resolution Sentinel-2 satellite imagery, bathymetric LiDAR, and field validation at approximately 400 locations to produce probability, percent cover, and binary presence maps for seagrass, macroalgae, and sand. Data is hosted by the Australian Ocean Data Network.

Use Cases

• Modeling seagrass habitat probability based on remote sensing and oceanographic variables.
• Estimating blue carbon storage potential based on mapped seagrass extent and composition.
• Monitoring changes in benthic habitat cover (seagrass, macroalgae, sand) over time.
• Validating optical remote sensing methods for seagrass mapping in temperate waters.

Strengths

• Field validation at approximately 400 locations using BOSS and stereo-uBRUV systems.
• Maps derived from high-resolution Sentinel-2 (10 m) satellite imagery and bathymetric LiDAR.
• Produces three key product types: occurrence probability, percent cover, and derived binary extent maps.

Limitations

• Mapping depth is limited to approximately 30 meters by optical detection capabilities.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset scale are unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Combined remote sensing (Sentinel-2, LiDAR) with field validation (BOSS, stereo-uBRUV) and statistical modeling.

Freshness

Last updated 2026-06-16 17:31:44.471437; freshness should be verified.

Geography

Coastal waters surrounding Flinders Island in the western Furneaux Group, Tasmania.