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AAR-bloom - Bloom Raiders 2025

Understanding the Massive Phytoplankton Blooms over the Australian-Antarctic Ridge
NSF-OPP Award # 2135184

Cruise NBP24-11 / Event: O-288-N:
• Cruise dates: 13 December, 2024 - 03 February, 2025. Vessel: RVIB Nathaniel B. Palmer. Out of Lyttleton, New Zealand.

Data (some is password protected):
• Cruise Report
• Project Google Drive
• NB Palmer network drives:
     - CruiseData (OpenVDM)
     - Science
     - Public
• CTD data
     - Stations info: text format and Google Earth format
     - CTD profiles:
          - cnv format (SeaBird 1m binned processed files)
          - WHP format (ODV ready, the ct1.zip files contain all casts and can be used in ODV to import all stations at once)
     - Bottle file: NBP2411_hy1.csv - see the README_bottlefile_updates.txt for changes. Last updated: November 26, 2025
     The WHP files and bottlefile can be imported directly into ODV as "WHP format". See also: WHP-exchange format documentation.
• Log sheets
• Underway data: NBP2411_underway.txt (import into ODV as "ODV Spreadsheet", not all parameters are included, contact Gert if you need specific ones)
• Planktoscope - EcoTaxa projects:
     - CTD Stations
     - Water Mix Experiments (Lauer)
     - Metal Addition Experiments (Davis)
     - Hydrothermal Mixing Experiment (Monreal)
     - S082C03 "Plume"
     If you'd like access to any of these projects, let Gert know.
• Satellite Images:
     Yesterday's images:
       - Wide View
       - Zoom View
     Rolling last 8 day binned images (like the one below):
       - Wide View
     Older images:
       Chlorophyll a (AQUA_MODIS)/ sea ice concentration:
            - Wide View - Monthly images
            - Wide View - Monthly images organized by month
            - Wide View - 8 Day images
            - Wide View - 8 Day images organized by 8 day period
            - Zoom View - Monthly images
            - Zoom View - Monthly images organized by month
            - Zoom View - 8 Day images
            - Zoom View - 8 Day images organized by 8 day period
       Chlorophyll a (MERGED)/ sea ice concentration:
            - Wide View - 1 Day images (see latest below)
            - Zoom View - 1 Day images
            - Wide View - 8 Day images (2002 onwards)
            - Wide View - Rolling 8 Day images
       Sea level anomaly (Copernicus)/ sea ice concentration:
            (note that ice underlays valid sla observations)
            - Wide View - Daily images
            - Wide View - Daily images organized by 1 day period
            - Wide View - Daily images (autoscaled Balleny region)
            - Wide View - Daily images organized by 1 day period (autoscaled Balleny region)
      Google Earth files (kmz)

Publications:
• Vanegas Ledesma, A., L. N. Thomas. 2024. Transport Pathways for Iron Supply to the Australian Antarctic Ridge Phytoplankton Bloom. Geophysical Research Letters 51(14). doi:10.1029/2023GL108001.
• Schine, C. M. S., J.-E. Lund Snee, A. Lyford, G. van Dijken, K. R. Arrigo. Southern Ocean net primary production influenced by seismically modulated hydrothermal iron. Nature Geoscience. doi:10.1038/s41561-025-01862-6.
• Schine, C., A.-C. Alderkamp, G. van Dijken, L. Gerringa, S. Sergi, P. Laan, H. van Haren, W. van de Poll, K. Arrigo. 2021. Massive Southern Ocean phytoplankton bloom fed by iron of possible hydrothermal origin. Nature Communications 12, 1211. doi:10.1038/s41467-021-21339-5.

- - - Cruise Track (color = time elapsed) - - -


- - - Latest Rolling Last 8 Day Binned Chl a / Ice Combo - - -

- - - AAR Bloom - February, 2010 - - -




For help with this page contact Gert van Dijken
Last updated: December 9, 2025