Regular meetings with the project Users Partners and with potential new customers served as a basis for the project efforts throughout the lifetime of the project.
A large effort was placed on technical specifications and implementations; securing the hardware and processing needs and identifying and implementing different elements of the processing chains, to ensure reliable product access, storage and processing and to keep data processing soft-ware up to date with scientific developments. In addition to identification of cyanobacteria and estimation of chl-a concentration, other algorithms and products (e.g. TSM and Secchi Disc Depth) were implemented, validated and added to the service portfolio as a response to user requirements. ENVISAT MERIS, Sentinel-3 and Sentinel-2 processing chains are now in place for automated service provision.
Equally important was the development of the CyanoAlert service tools, including a web based viewer, subscription and app, which now constitutes the core of the service on the end-user side. In 2019, a service trial based on daily cyanobacteria identification and chl-a alerts was available for the User Partners. After the trial period, the information and tools were further finessed based on iterative feedback from the users of the service. The first official release of the viewer occurred in May 2020 and the mobile app was officially released in June 2020.
Validation of the CyanoAlert products and service was made to characterise the performance of the service in the user-specific regions of interest. The work was preceded by an effort to compile validation data from the User Partners in Italy, Romania and Sweden, as well as on data acquired from more recently established partnerships with stakeholders in Germany and the United States. In addition, guidelines for in-situ measurements were prepared and CyanoAlert in situ data collection campaigns were performed in Romania and Italy during 2018 and 2019. The validation efforts focused on Sentinel-3 and Sentinel-2 and identified the most suitable algorithms for each region, which were then implemented in spring 2020 in the CyanoAlert Viewer and App data cubes to ensure that only relevant products are available for each user.
In parallel with final technical developments, the CyanoAlert service has become a registered trademark and been presented at different conferences, workshops and specific CyanoAlert demonstration webinars. Potential clients have been approached and service assignments dis-cussed. First commercial contracts were established and services already implemented for the 2020 summer season, and several are discussed for 2021 and beyond.