Littosat - Hytech-imaging

Satellite dashboard for monitoring coastal environment parameters

Littosat offers a dashboard

For managers of coastal areas and marine protected areas

Supplied by new data from satellite images

Pilot areas: Brittany, Normandy, Golfe du Lion
National and international deployments in progress

Allowing spatio-temporal monitoring of coastal environment parameters

Coastal vegetation
Morphodynamics of shallow waters
Turbidity and microalgae blooms

Based on a simple and intuitive display interface

Distributing geoservices that meet the standards of the INSPIRE directive

Available in regional geodatabases

Littosat-viewer

The online viewing interface and available data layers allow:

inter-annual and intra-annual comparisons of vegetation status with tidal-S2 and ivi-S2
comparison with other data (e.g. Litto3D, seagrass inventories, etc.)
add your own data layers on demand

The viewer distributes Sentinel-2 images, with:

images every 5 days since 2015
selection tools by date and % of cloud

The platform distributes Littosat data layers in OGC streams, ensuring:

can be reused in your GIS
interoperability with other platforms

Littosat-data

tidal-S2 : Sentinel-2 seamless mosaics at different tide levels

regional seasonal coverage at 10 m over the 2018-24 period, Channel Atlantic coverage in 2025

ivi-S2 : emerged foreshore vegetation index

regional seasonal coverage at 10 m over the period 2018-24 + changes between 2 seasons, Channel Atlantic coverage in 2025

bathy-S2 : depth and relief of shallow waters

coming soon, at 10 m, coverage in definition

chloro-S2 : chlorophyll content

coming soon, at 10 m, coverage in definition

turbi-S2 : turbidity, suspended matter

coming soon, at 10 m, coverage in definition

Example: Foreshore of the Sillon de Talbert and Ile de Bréhat nature reserves, Brittany, France, Spring 2022

1 : tidal-S2 high tide
2 : tidal-S2 low tide showing the foreshore
3 : ivi-S2 low tide showing the plant cover of the foreshore
(vegetation cover in dark green, mineral cover in pale green-yellow)

© Hytech-imaging, contains modified Copernicus Sentinel data

Littosat-API

Our image selection and analysis infrastructure is robust and fully automated, enabling:

rapid deployment of Littosat and the tidal-S2 and ivi-S2 data layers over any coastal region
upgrading to an API service to meet specific needs

Selection and rapid distribution of Sentinel-2 images (geoTIFF, WMS) based on tide and cloud cover criteria for your areas of interest

Generation and distribution of time series of tidal-S2 images and ivi-S2 information layers on foreshore vegetation (geoTIFF, WMS) in your areas of interest

extraction and distribution of spatio-temporal indicators of loss or gain of vegetation cover (geoTIFF, csv)

Approach

Working groups and workshops bringing together experts, institutional partners and users (needs analysis, evaluation of dashboard data and functions, definition of new products and services to be developed)