Proyectos vigentes

Improved assessment of algorithms for bathymetry and water quality parameters with Sentinel-2A/B high-resolution satellites for advancement of coastal applications (Sen2Coast)

Equipo

Enlace web

http://eo.csic.es/research/11-research/27-sen2coast

IP

Isabel Caballero de Frutos

Resumen

Bathymetric information is crucial for a wide range of near-shore activities such as dredging, environmental management, maintenance of infrastructures, military purposes, navigation, aquaculture, tourism or mapping benthic habitats, among others. In addition, monitoring of the dynamic depth bottom will enhance understanding of some of the main climate change impacts such as sea-level rise, ongoing and forthcoming beach erosion or resilience to hazards. Researchers and policy managers are now required to use accurate high-resolution bathymetry for all these applications. Despite the need to monitor and protect coastal areas, the baseline available to date is surprisingly incomplete: half of the world’s coastal seafloor remains unmapped or inadequately surveyed, and is therefore poorly understood. The shallow water zone can be a challenging environment in which to acquire information using traditional methods. Satellite-Derived Bathymetry (SDB), the depth extracted from satellite images, should be considered as a potential affordable technology for filling these gaps providing safe, low-cost and easy access to remote locations. However, the current state of the art on SDB techniques is not readily adaptable for its routine application worldwide. Although the acquisition of satellite imagery data is not a problem today, its processing is more complex than data collected from conventional surveys, where the main challenges are associated with the requirement of accurate corrections for both atmospheric and water quality effects. Considering SDB has potential advantages for aiding the blue economy, as well as the market and industry sectors, there is an international need for urgent enhanced strategies.
The main objective of the Sen2Coast project is the development of an up-to-date, accurate, free, high-resolution coastal bathymetric product from the Sentinel-2 mission of the European Commission’s Copernicus programme. This proposal aims at fulfilling the objective of operational bathymetric monitoring evaluating different capabilities, requirements and quality standards accomplished in a variety of environments and conditions with incorporation of a merged correction for atmospheric and water environmental effects. The investigation will be implemented by means of a multidisciplinary approach that formatively couples satellite techniques, field campaigns and bio-optical modelling, together with in situ data collected in different regions of Europe and USA in collaboration with international groups. The project also intends to advance the implementation of water quality algorithms over the challenging coastal and inland water regions, providing significant information to assist the EU Marine Strategy Framework Directive benefiting vital sectors in our economy, such as tourism, aquaculture, fishing, resource development and management. The impulse of the European Copernicus initiative to put coastal regions central to its focus is therefore indisputable as an outstanding opportunity to leverage Sentinel-2 toward these aims. The ultimate goal of Sen2Coast is to provide useful and scientifically sound information and tools to advance coastal science for resolving management, industry and research issues. As economic activity in shallow waters is intensifying and climate change impacts on coastal regions are increasing worldwide, Sen2Coast is key to anticipate the opportunities that have to come for satellite technology.

Actividades del proyecto

-Objective 1. To implement a dedicated optimal Sentinel-2A/B pre-processing protocol for correction of imagery with incorporation of atmospheric, sun glint and surface reflectance approaches emphasizing the use of new technologies developed in the frame of the Copernicus programme.
-Objective 2. To validate water reflectance, turbidity, suspended material, chlorophyll algorithms and algal blooms with in-situ measurements and modelled data from HydroLight software.
-Objective 3. To establish an accurate multi-temporal model for Satellite-Derived Bathymetry generation with Sentinel-2A/B imagery in several study locations in collaboration with national and international groups.
-Objective 4. Outreach and dissemination: to make publicly available the data and methodologies for their use by the scientific community, coastal managers and administrations.

Fecha inicio

16/09/2019

Fecha finalización

15/09/2022

Organismo financiador

MINISTERIO DE CIENCIA, INNOVACIÓN y UNIVERSIDADES, Programa Estatal de I+D+i Orientada a los Retos de la Sociedad Jóvenes Investigadores JIN

Cuantía

165,770€