Tools and Platforms Utilized¶

A combination of visualization web platforms, data access services, and custom scripts was employed to process and analyze the selected datasets:

webODV^[2]¶

https://webodv.awi.de/ – both on the FAIR-EASE testbed^[3] infrastructure and local desktop version – was used to explore and visualize:

• GEOTRACES data
• Helium isotope data
• Copernicus Marine Service – GlobColour products (Chlorophyll-a, BBP)
• Sea surface height and geostrophic current datasets
• BGC-Argo float profiles

VolcPlume^[4]¶

https://volcplume.aeris-data.fr/ provided a key web platform to monitor the start and end dates of volcanic gas/particle emissions, as well as the spatial dispersion of volcanic plumes (including their content in SO₂, ash, sulfate aerosols, and ice crystals) related to both Hunga Tonga and Etna eruptions.

EuroArgo Tools¶

• Data Selection Portal
• Fleet Monitoring Interface
  These tools were used to collocate Argo float trajectories in time and space with volcanic activity from Hunga Tonga and Etna.

Custom Python Code¶

A dedicated script was developed during the Hackathon to read and visualize MODIS-Aqua Level-2 nFLH (Normalized Fluorescence Line Height) data, which has an unconventional NetCDF structure (not gridded, under-track format, using NetCDF grouping function).
GitHub repository: modis.py

MyOcean Pro¶

Used for rapid pre-visualization of Chlorophyll-a and BBP time series derived from Copernicus Marine Service products in the study region.

Some of these visualization platforms, data access services, and custom scripts have been deployed on the FAIR-EASE testbed. Figure 0 shows the overall test bed, which encompasses several infrastructures.

In order to work on the interoperability between the data, a set of services have been deployed on a single infrastructure, namely the UCA testbed. This enabled testing of cloud format files and easy access to several analytical services.

Note: Figure 0 contains only the infrastructure where new services have been deployed, not the ones (such as VolcPlume, existing webODV instances…) that already existed.

Figure 0: FAIR-EASE infrastructure testbed