3. Annex

Data Inventory¶

Time period¶

20th of November – 30th January (climax on the 15th of January 2022)

Geographic Bounding Box¶

• north: -17.634
• east: 187.927
• south: -22.958
• west: 182.269

Satellite Data (Atmospheric & Oceanic)¶

Volcanic Plume & Gas Tracking¶

HIMAWARI-8 (GEO)¶

• Tracks volcanic ash, sulfate aerosols, ice crystals.
• Best time resolution for dispersion analysis.
• Data can be visualised with the VolcPlume web platform: https://volcplume.aeris-data.fr/
• GeostatRGB composites for the relevant region and dates: link
• Raw data: link (registration using ORCID or Icare ID)
• Relevant paper: Boichu et al. 2023 – DOI

Sentinel-5P/TROPOMI (LEO)¶

• Tracks SO₂ gas emissions, which persist longer than ash.
• Data can be visualised with the VolcPlume web platform: https://volcplume.aeris-data.fr/
• TROPOMI data: L2 products (files labelled SO2) for 2022 are available here (registration using ORCID or Icare ID)
• Volcano Thredds: https://thredds.icare.univ-lille.fr/thredds/catalog/catalog.xml

Ocean Color & Phytoplankton Blooms¶

Copernicus-GlobColour (CMEMS)¶

• L3 (daily) dataset (Bio-Geo-Chemical ocean color observations): link
• L4 (monthly interpolated) dataset (multi-sensor combined). DOI for L4: European Union-Copernicus Marine Service (2021)
• Daily L4: link
• Chlorophyll-a concentration (CHL) to track phytoplankton blooms: DOI
• Relevant paper: Frontiers in Marine Science

Sentinel-3A/B OLCI (Ocean Land Colour Instrument)¶

• Best sensor for detecting fluorescence (better phytoplankton tracking).
• EUMETSAT page
• ESA browser: link

MODIS Aqua data L2 (to be confirmed)¶

• Ordered from NASA Earthdata MODIS L2 data (1 Jan 2022 – 28 Feb 2022, 1GB) containing nFLH (Normalized Fluorescence Line Height). Not yet explored.

CMEMS (Global Ocean Current Data)¶

• Provides continuous surface circulation data.
• Daily altimetry product with calculated geostrophic currents.
• Global Ocean Gridded L4 Sea Surface Heights and Derived Variables: link
• DOI: European Union-Copernicus Marine Service (2021)
• Possible to overlay with Argo float trajectories.

Ocean Data (In Situ Measurements)¶

Water Chemistry & Nutrients¶

GEOTRACES Data (IDP2021)¶

• Provides Iron and Silicate concentrations pre- and post-eruption.
• Dataset: GEOTRACES_IDP2021_Seawater_Discrete_Sample_Data_v2
• BODC access
• On webODV see with Reiner

World Ocean Atlas (WOA)¶

• Climate Fields Data (temperature, salinity, dissolved nutrients).
• THREDDS: catalog | WOA23 catalog
• FTP: ftp://ftp.nodc.noaa.gov/pub/data.nodc/

Argo Float Data (Biogeochemical & Physical)¶

• BGC-Argo (Global Data Assembly Centre)
  • Key floats: 6903024 & 6903025 (located near eruption)
  • Particle Backscattering (BBP) signals possibly linked to ash fallout
  • Chlorophyll-a (CHL-a) concentration from Argo profiles
  • Argopy tool in Galaxy: link
• Access:
  • S3 bucket on AWS (Galaxy)
  • Direct NetCDF files from Argo GDAC
• Beacon: Franz et al. 2024 paper shows discrepancy between Argo data and satellite ocean color
• BGC-Argo Synthetic Profile Collection (Chlorophyll-A): DOI

AVISO Maps (Surface Current & Float Positions)¶

• Historical datasets available.
• Action: Catherine to clean and analyze this data.

Ocean Biological Data¶

• Help of the bioinformatic team from Ifremer
• NCBI – WWW Error Blocked Diagnostic

webODV Access Links of Relevant Datasets¶

webODV Explore Server – FAIR-EASE Testbed¶

• cmems_mod_med_bgc-plankton_my_4.2km_P1Y-m_1732549229584 – Chlorophyll (annual mean) | OCEANCOLOUR_MED_BGC_L3_MY_009_143 | 2016 – 2022
• MODIS-A_L3_mean_Chlo_2019-03-21_2019-06-21 – MODIS/Aqua Level-3 Chlorophyll Concentration, OCI Algorithm (2019-03-21 – 2019-06-21) – European Seas
• cmems_obs-oc_adriatic_bgc-plankton_my_l3-multi-1km – Multi-sensor and multi water-type Chlorophyll a concentration | VIIRSJ JPSS-1 - Level2, VIIRSN Suomi-NPP - Level2 | Northern Adriatic | Nov 2015 – Nov 2019
• cmems_obs-oc_glo_bgc-plankton_my_l4-olci-300m_P1M_1740837458978 – Monthly GlobColour Chlorophyll-a concentration | Hunga Tonga region | Jan – Feb 20_