Tiit Kutser

Estonian territorial waters mapped with sonar

Shallow water bathymetry is a problem

R² = 0.6793

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Bat

hym

etr

y d

ata

(m)

In situ data (m)

Estonian Maritime

Administration

hydrographic ship

Sentinel-2

Habitat mapping since 2005

About 26% of

Estonian territorial

waters covered

Habitat mapping since 2005

Drop video

Grab samples

~1.2 km2 = 0.00003%

~170 m2 = 0.0000004%

Absorption by pure water

Absorption very strong in red and NIR

Small change in water dept = detectable

difference in RS signal in red and NIR

High accuracy in depth estimation

10 cm depth variations easily detectable10 cm depth variations easily detectable

QuickBird

Baltic Sea vs. Oceanic waters

Lizard Island. Sentinel-2. Differet dates

Estonian west coast. HySpex imagery

Sen2coral plugin for SNAP

Lake Garda. Sentinel-2

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By Claudia Giardino

Estonian west coast. Sentinel-2

Estonian north coast. Sentinel-2

Impact of atmospheric correction

Impact of glint and atmospheric correction

Bright sand in shallow water Deep water

Impact of wind?

SDB for fish stock recovery

Some former bays potentially

very good fish spawning sites

Fish likes vegetation, but not

when it is reaching the surface

With remote sensing we

should be able to recognise

suitable areas

Validation tool

Thank you for your attention!