Airbus Logo

Defence and Space

Airbus Logo

Defence and Space

Airbus Logo

Defence and Space

Precision mapping of urban vegetation

Precision mapping of urban vegetation using Pléiades Neo imagery

In 2022, Airbus Defence & Space Intelligence launched the Pléiades Neo Challenge, a call for projects offering free access to Pléiades Neo imagery.
The French public agency the CEREMA, which stands for Centre for Studies and Expertise on Risks, the Environment, Mobility and Urban Planning, was selected to test and implement Pléiades Neo imagery as part of the Green Urban Sat project. The aim of the project is to map and evaluate urban vegetation in order to help municipalities make decisions for the future.

The study area covers the municipality of Nancy, France
Challenge

Cities are increasingly suffering from urban heat islands, pollution, runoff and other issues. Urban vegetation offers several Ecosystem Services (ES) to cope with many of these challenges, including local climate regulation, improved air quality, water cycle management, socio-cultural benefits and ecological continuity. 

To manage and improve urban vegetation, municipalities face a critical challenge: precisely mapping urban vegetation and its characteristics. 

As part of the Green Urban Sat project, funded by the Space Climate Observatory (CNES), the CEREMA has used Pléiades Neo imagery to evaluate its potential for mapping urban vegetation, specifically for precisely detecting vertical and horizontal strata.

The city of Nancy, France, has been used as a testing ground for this method. 

Classification applied on Pléiades Neo 6-bands imagery
Our Solution

The CEREMA used two different type of satellites imagery for the analysis: Pléiades and Pléiades Neo.

• Pléiades imagery: includes multi-temporal and multi-angular acquisitions to discriminate vegetation across seasons, discriminate vertical strata and discriminate horizontal shapes

• Pléiades Neo tri-stereoscopic imagery: to detect vegetation with NDVI and supervised classification, using the advantages of the specific Red Edge-band.

The satellite imagery was used to help identify different areas: built up, road, bare soil, water and vegetation.

Extract from GreenCity platform (TerraNIS) with Nancy results

Benefits

This analysis has confirmed the strong potential of the new Pléiades Neo images for satellite-based urban space analysis, particularly for vegetation in the city, thanks to their very high spatial resolution and their 6 spectral bands.

Pléiades Neo imagery has many advantages for this application:

• Precise identification of plan forms, including the detection of smaller plant structures like shrubs
• The Red Edge band enables the monitoring of the phenological cycle and water stress of plants
• The very high-resolution of Pléiades Neo imagery allows for distinguishing between tree and herbaceous vegetation, with a high level of details on grass and, consequently, an heterogeneous texture.
 

Conclusion of the urban vegetation and biodiversity of Nancy

The CEREMA concluded that the city of Nancy can be rated at 5/10 for its urban vegetation and biodiversity indicator.  
The demonstration over Nancy will be included in the GreenCity platform (TerraNIS). Also, the method will be replicated at a national and global scale.

CEREMA logo
Organisation involved
Related pages
Pléiades Neo 30cm - Very High Resolution  satellite image

Pléiades Neo

Satellite image - Land Administration services - Airbus Intelliegence

Land Administration & Mapping Market

 Search the Airbus Optical Archive images

Airbus Optical Archive

Want to know more?

Our sales team will be happy to provide you more information about this case study and how it can meet your business needs.

satellite-image-map-airbus-product-page.jpeg

See all our case studies

See all
SPOT satellite imagery - 1,5m resolution - Leuser Ecosystem, Indonesia
Forestry and Environment
SPOT

Starling | Promoting green development in the Leuser Ecosystem in Indonesia

Our efforts in Aceh Tamiang have revolved around partnering with the government and aiding their efforts to implement a green development plan. 

SPOT, 1,5m resolution satellite imagery -  Amazon River, Peru
Forestry and Environment
SPOT

Starling | Impacting the Amazon and other key landscapes in Peru

Our work in Peru started in 2015, when – with our support – Nestle approached supplier Grupo Palmas with regard to plans to plant oil palm on about 23,000 hectares of primary forest in the Peruvian Amazon.

SPOT, 1,5m resolution satellite imagery- Cavally Forest, Ivory Coast
Forestry and Environment
SPOT

Starling | Regenerating the Cavally Forest in Ivory Coast

The Cavally Forest Reserve is one of the last intact forest reserves in Ivory Coast, the world’s top producer of cocoa. Most of this cocoa is grown by small farmers, and Ivory Coast has lost a significant amount of forests trying to meet global chocolate demand.