Esnandes Salt Marsh Multispectral Drone Survey (september 2025)

The multispectral images of the study area were acquired by drone on 18 September 2025 using the DJI Mavic 3M RTK. The orthomosaic was generated from 5,128 images across five spectral bands (Green, Red, Red Edge, Near-Infrared (NIR), and Alpha), captured at an altitude of 100 meters (2025). The ground resolution achieved was 4.568 cm/pixel, covering a surveyed area of approximately 0.94 km². The Digital Surface Models (DSMs) were resampled to a resolution of 10 cm.

Date (Creation): 2026-03-06T09:59:34

Date (Revision): 2026-03-06

Date (Publication): 2026-03-06

Edition: 1.0

Edition date: 2022-11-13T09:00:00

Identifier: FR-180-089-013-03720-LIENSs-MNS-plateforme_drones_Esnandes_190924-180925

Credit: LIttoral ENvironnement et Sociétés - La Rochelle Université / CNRS

Status: completed Completed

Author

LIttoral ENvironnement et Sociétés (LIENSs) - VOLTO Natacha

Point of contact

LIttoral ENvironnement et Sociétés (LIENSs) - VOLTO Natacha

Point of contact

LIttoral ENvironnement et Sociétés (LIENSs) - DUPUY Christine

Point of contact

LIttoral ENvironnement et Sociétés (LIENSs) - Service d'Aide à la Gestion de la Donnée

2 rue Olympe de Gouges France , La Rochelle , 17000 , France

Publisher

Pôle ODATIS

NA NA ,

Maintenance and update frequency: Not planned

Theme

DSM ; RTK ; Salt Marsh ; ESA Coastal Blue Carbon

GEMET - INSPIRE themes, version 1.0

GEMET - Concepts, version 2.4

altitude

ODATIS aggregation parameters and Essential Variable names

Shoreline

Type de jeux de donnée ODATIS

/Observational data

Use limitation: CC-BY-SA (Creative Commons - Attribution, Partage dans les mêmes conditions)

Access constraints: License

Spatial representation type: grid Grid

Distance: 20 cm

Metadata language: English

Character set: utf8 UTF8

Reference system identifier: EPSG / 2154

Distribution format

tableDigital ( v1.1 )

Hierarchy level: Dataset

Domain consistency

Conformance result

Date (Publication): 2010-12-08T12:00:00

Explanation: See the referenced specification

Pass: Yes

Domain consistency

Conformance result

Date (Publication): 2008-12-03T12:00:00

Explanation: See the referenced specification

Pass: Yes

Statement: Multispectral images were acquired using the Mavic 3M RTK drone from the LIENSs UAV platform. Both the drone acquisitions and photogrammetric processing were carried out by Natacha Volto (LIENSs) using Pix4Dfields, without the use of ground control targets during the initial processing. The resulting multispectral orthomosaic was then georeferenced in ArcGIS Pro using 42 highly visible control points, which were identified and matched in both the multispectral and RGB orthomosaics generated from the same drone surveys.

These drone surveys were conducted as part of the ESA Coastal Blue Project, coordinated by Christine Dupuy at the LIENSs Laboratory.