Medam is a database of the Marine Strategy Framework Directive (MSFD) monitoring program for the Mediterranean Sea, "Benthic Habitats and Seabed Integrity" component.
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The Medam website has been integrated into the European Sea Atlas of the European Commission.
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The Medam website has been updated significantly in 2016 and 2017.
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MEDAM is the sister website of MEDAMP, the observatory of the protection of biodiversity : www.medamp.org
Any quotation or use of elements of this data management system should be mentioned as "MEDAM Université Côte d'Azur CNRS ECOSEAS"

Surfaces et linéaires artificialisés de ces ouvrages par tranche bathymétrique

Pour chaque ouvrage inventorié nous avons mesuré :

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La surface totale gagnée sur la mer

inventaire surf tot gagnee mer 01 inventaire surf tot gagnee mer 02

Surface totale gagnée sur la mer par un ouvrage : addition de ce qui est devenu terrestre (ici en orange) et du plan d’eau devenu confiné (ici en bleu). Exemples : à gauche : ports de Vallauris-Golfe Juan ; à droite plages alvéolaires de La Rague à Mandelieu -La -Napoule.

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Le linéaire naturel initial devenu artificialisé par les aménagements gagnés sur la mer

C’est le linéaire du trait de côte initial historique (avant la construction de l’ouvrage)

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Le trait rouge des cartes du volet cartographie indique le linéaire initial (exemple : ports de Vallauris Golfe Juan)

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Le linéaire du contour extérieur des ouvrages

C’est le contour des digues extérieures des ouvrages.

inventaire surf tot gagnee mer 01 inventaire surf tot gagnee mer 02 inventaire surf tot gagnee mer 03

Le trait noir des cartes du volet cartographie indique le linéaire extérieur des ouvrages. Exemples : en haut à gauche : ports de Vallauris-Golfe Juan ; en haut à droite plages alvéolaires de La Rague à Mandelieu-la-Napoule ; en bas : épis de "Le Môle" à Agde.

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PHOTOS

An image data base has been developed in order to present visually the changes in the coastline at the sites of reclamation redevelopment schemes.

 

1628 photographs are available at this site, with ongoing updating of the image bank. The photographs may be recent or more historical (views of the coast prior to reclamation have been sought). Some are photographs taken from the air others at ground level (sea or land).

 

The images made available are of low resolution. The photographers are cited and may in some cases be contacted by e-mail (list of photographers). Any new photos or similar documents are welcome: contact us to upload them ! (aims, procedure, conditions)

 

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CARTOGRAPHY

Access the cartographical data base to view the contour lines of all the reclamations and the contours of all the bathymetric and administrative limits.

RECLAMATION SCHEMES

Access data on the characteristics, description, year of redevelopment, illustrations and localisation of each reclamation > 100 m².

HISTORICAL RECORD AND PATTERNS OF PROGRESSION

Access the historical record data base: the construction of each structure or part of a structure has been dated. This data provides the basis for showing on bar charts the progression over time of reclamations and their impact on the basis of administrative units (country, region, county ( département), municipal and rural district (commune) or ECD water mass).

THE RECORD

For all French Mediterranean coasts (excluding Monaco and the Etang de Berre) (see ‘details’ for noteworthy regional or more local particularities).


MEDAM Inventory :

Original coastline : 2 062 km (> see details)

Surface area of shallow water bottoms prior to any reclamation (> see details) :

Between 0 and -10 m : 80 723 ha soit 807 km²

Between -10 m and -20 m : 88 046 ha soit 880 km²

Between 0 and -20 m : 168 769 ha soit 1 688 km²
Between -20 and -50 m : 330 030 ha soit 3 300 km²

 

Number of reclamations (>100 m²) : 1 050 (> see details)

 

Coastline ‘artificialised’ by reclamation : 223.02 km (> see details)

Surface areas reclaimed by these redevelopments (> see details) :

Between 0 et -10 m : 4 226.13 ha

Between -10 m et -20 m : 903.70 ha

Between 0 et -20 m : 5 129.83 ha

 

MEDAM Impacts :

Rate of ‘artificialisation’ of coastline (linear) : 12.27 % (> see details)

Rate of irreversible destruction of shallow water bottoms by reclamation (> see details) :

Between 0 et -10 m : 5.24 % 

Between -10 m et -20 m : 1.03 % 

Between 0 et -20 m : 3.04 %

 

Progression :
A step in the right direction: a clear slowing down of reclamation from 1985  (> see details).

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