The Danube Delta is the largest wetland in Europe and is protected under UNESCO as a unique biosphere reserve. Located at the mouth of the Black Sea, its winding canals, marshes, rivers and lakes are rich in lush vegetation and wildlife, and span some 2,200 square miles.

As home to the Danube Delta Biosphere Reserve, it has the third largest biodiversity in the world, with more than 5,500 species of flora and fauna, and the highest concentration of bird colonies in Europe.

The Danube Delta suffers from human interventions leading to dramatic changes. These interventions include damming large areas for agricultural use and intensive forestry. They result in disturbances of the water and ecological balance and even the loss of specific habitats.

There is currently no up-to-date data available that would allow for dynamic and accurate monitoring of changes in land cover and land use in this rural environment. A large number of citizens will participate in the SCENT field tests in Danube Delta, activated by partner SOR, an NGO which is very active in the Danube Delta and has access to a large network of citizen groups through campaigns about Danube bird habitats and biodiversity.

Scent also has the active support of the Romanian governmental Danube Delta Biosphere Authority (DDBA) responsible for maintaining spatio-temporal flooding maps of the area. DDBA will attend workshops and evaluate the Scent toolbox from the policy maker viewpoint.