Seabed mapping with remote sensing

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Seabed mapping with remote sensing

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âPing rate: max 40/s. Range: 100 m on each side ... Monitoring of seagrass meadows distribution ... Monitoring changes in seagrass meadows sled sidra pred ...

Seabed mapping with remote sensing

Maja Berden Zrimec, Dean Mozetič, Sašo Poglajen

Harpha Sea: - Active in the field of surveying and geoinformatics for over 20 years - Development of bathymetric models - Underwater archaeology surveys - Terrestrial surveys - LIDAR - Aerial recording - GIS services (field surveys, GIS maintenance, spatial analysis, map making) - 3D modelling

LIDAR and spatial analysis

3D modelling

3D modelling

Models of buildings

3D modelling

Models of cities

LiDAR & sonar data combination Floodplain areas

Underwater surveys

-  - Specialised in coastal water surveys with research boats, automatic research vessels and drones -  - Top quality survey instruments (multibeam and sidescan echosounders, subbottom profilers, underwater cameras, etc.) -  - System for data elaboration and visualisation in 2D or 3D virtual environments

Side-scan sonar (SSS)

SSS: StarFish 450f Frequency: 450 kHz “Ping rate: max 40/s Range: 100 m on each side

Sub-bottom profiler (SBP)

SBP: Innomar SES-2000 Compact Primary frequency.: 100 kHz Secondary freq.: 5, 6, 8, 10, 12, 15 kHz “Ping rate: max 15 Hz Range: 400 m depth Sediment penetration: 40 m

Multi-beam echo-sounder (MBES) Luka Koper- prvi bazen

MBES: Reson SeaBat 8125 Frequency: 455 kHz “Ping rate: max 40/s Range: 120 m Depth accurancy: 6 mm Width: 120° / 3,5 x depth Št. snopov: 240‫‏‬ MBES: ODOM R2Sonic 2022 Frequency: 200 - 400 kHz “Ping rate: max 60/s Range: 500 m Depth accurancy: 1,25 cm Width: 10° - 160° Št. snopov: 256‫‏‬ MBES data cloud & pear’s pilots

Underwater surveys - charts

Digital model of Slovene coast

Bathymetry & topography including a 3D image of the coastal area

Seagrass meadows - Side-scan sonar (SSS)

Seagrass meadows – MBES

Seagrass meadows – MBES

Seagrass meadows – camera

Seagrass meadows – camera

Monitoring of seagrass meadows distribution

Seabed classification Seabed types: Mud Mud with grass Send Rock, stones Boulders and stones

Habitat mapping

Habitat charting

Monitoring changes in seagrass meadows

kanalizacijske cevi v Piranskem zalivu

sled sidra pred Koprskim zalivom

Detection of objects

Detection of objects

Digital bathymetric model of the pier 6 x 93 m) from the multibeam data: 0,1 m accurancy

Detection of divers - MBES

Thank you for your attention

[email protected] www.harphasea.com

[email protected] www.harphasea.com