SIPEX II — East Antarctica 2012
SIPEX II — five WIIOS units deployed across East Antarctic sea ice from RV Aurora Australis, 2012.
Tag: Buoy
WII4 Sub-type A
Placeholder WII4 variant — rename when the variant is identified.
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WII5 Sub-type A
Placeholder WII5 variant — rename when the variant is identified.
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WII1 to WII3
First three generations of WII buoys — early research prototypes that laid the groundwork for the production WII4 (Edison) and WII5 (AVR) designs.
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PIPERS — Ross Sea 2017
PIPERS — fourteen WIIOS deployed during autumn sea-ice growth in the Ross Sea, 2017. 23,000+ wave records.
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WII4 Sub-type B
Placeholder WII4 variant — rename when the variant is identified.
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WII5 Sub-type B
Placeholder WII5 variant — rename when the variant is identified.
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JARE-61 — East Antarctica 2019/20
JARE-61 — WIIOS units deployed during the 61st Japanese Antarctic Research Expedition, East Antarctica summer 2019/20.
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Buoy Types
WII1 through WII5 — the lineage of WII wave buoys, their sub-types, and the photos and history of each.
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Enclosures
Buoy enclosures — design decisions around ice, temperature, weight, anti-slide spikes, and survival in Antarctic deployment.
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Publications
Peer-reviewed publications drawing on WII buoy data — including the 2014 Nature paper on storm-induced sea-ice breakup. Mirrors Alison Kohout’s project bibliography.
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WII4
Fourth-generation Edison-based WII buoy. Multiple sub-type variants.
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WII5
Current-generation WII5 buoy — AVR/ESP32 main board, multiple sub-type variants.
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WII5 Site Launch and First Open-Source Release
Announcing the public WII5 documentation site and the first open-source release of the buoy firmware. May 2026.
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Korea Polar Research Institute 2024
Eleven-buoy deployment with the Korea Polar Research Institute, March 2024. Project id kopri.
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TWK5 Canada 2019–2021
Two-buoy Canadian deployment running 2019 through 2021. Project id twk5.
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TAS 2019 to 2022
Fourteen-buoy Tasmanian deployment running 2019 through 2022. Project id tas2019.
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Melbourne University 2018
Single-buoy deployment with the University of Melbourne, November 2018. Project id unimelb2018.
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Random Recovery
An unexpected buoy recovery in August 2018.
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Japan 2018
Three-buoy deployment in Japan, March 2018. Project id japan2018.
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NIWA 2017
Fourteen-buoy deployment with NIWA (New Zealand), April 2017. The Intel Edison all-in-one Linux generation — no AVR companion. Project id niwa2017.
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NYU UAE 2017
Two-buoy deployment with NYU UAE, April 2017. Project id nyuuae.
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Japan 2016
Two-buoy deployment in Japan, September 2016. Project id japan2016.
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NIWA Test 2016
Internal NIWA test deployment, project id niwatest2016. Zero buoys recorded — placeholder / system test entry.
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Internal Test Deployment
Internal test deployment, project id test2016. Two buoys, not a real-world project.
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Scott Base Testing 2014
NIWA-led testing of the WII2 sensor board at Scott Base, Antarctica — November 2014. Captured Kistler accelerometer, MPU9150 IMU, GPS, and Iridium telemetry at 2–8 Hz.
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NIWA 2012 — Original Deployment (Nature 2014)
The seminal 2012 NIWA deployment — eight WII buoys, the first digital sea-ice wave measurements ever collected. The data became the 2014 Nature paper on storm-induced sea-ice breakup.