GO-CART Benguela

Two Slocum gliders off the shellf break of Namibia

  • Public Mission
  • Inactive
  • PI: Stephanie Henson
  • Part of GO-CART
  • Began on 2018-02-12 (278 days ago)
  • Last Updated 2018-08-29 12:23:22
  • Finished on 2018-06-20 (150 days ago)

The purpose of the project is to investigate seasonal variability in the remineralisation of organic carbon and the frequency and characteristics of episodic particle fluxes. The depth at which organic carbon is remineralised in the ocean plays a central role in setting the air-sea partitioning of CO2, however it is difficult to measure at sufficient temporal resolution using traditional platforms, such as Pelagra. Our previous work has demonstrated that the lack of seasonal information in models of remineralisation result in increased uncertainty about the storage of carbon in the ocean's interior. Gliders have the potential to overcome this barrier to progress by providing very detailed data on sinking particles.

GOCART's objectives are to:
1. Quantify the variability in flux of particulate organic carbon and its remineralisation depth on daily to seasonal timescales
2. Determine the characteristics and significance of episodic pulses of flux
3. Investigate potential drivers of episodic flux pulses
4. Quantify the effect of seasonal variability in remineralisation on uncertainty in the mesopelagic C budget
5. Establish a new empirical parameterisation of remineralisation that incorporates temporal variability

Vehicle Activity

Vehicle Deployed Recovered Last Update
Doombar 2018-02-14 (275 days ago) by Filipa Carvalho 2018-06-19 (150 days ago) by Filipa Carvalho ‐ End of Mission 2018-06-19 16:34:49 (150 days ago) No Public Data Available
Grease 2018-02-20 (269 days ago) by Filipa Carvalho 2018-04-20 (210 days ago) by JamesCook 2018-04-19 09:22:24 (211 days ago) No Public Data Available
RRS Discovery 2018-05-20 (181 days ago) None 2018-06-20 23:59:00 (149 days ago) No Public Data Available

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