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SAGE Experiment
Project Sheet: SOLAS Air-Sea Gas Exchange Experiment (SAGE)
| SOLAS Activity: | SOLAS Air-Sea Gas Exchange Experiment (SAGE) |
|---|---|
Contacts | Mike Harvey, Cliff Law, Murray Smith; m.harvey@niwa.co.nz; c.law@niwa.co.nz; m.smith@niwa.co.nz |
Timetable | The study took place during March 17 – April 15, 2004. |
Study Location | Sub-Antarctic waters 48 S 173 E. |
Collaborations | New Zealand, USA (7 institutions), Australia, France, UK, Canada, Finland. |
Climate, Weather, and Hazard Relevant Compounds | Carbon, N2/O2, noble gas, DMS(P), SO2, N2O, CO, CDOM CN, aerosol chemistry. |
Processes | Air-water Gas Exchange, Mixed Layer structure, skin/surface properties, biogenic gases, atmospheric fluxes. |
Infrastructure, Resources, and Instruments | Research Vessel Tangaroa, CARIOCA pCO2 Buoys, Shipboard Gill R3A Anemometer mast, SAMI pCO2 sensors, SkinDeep vertical profiler, MAERI, SCAMP/TRAMP temperature microstructure profiler, sparbuoy, ADCP, S-band radar, FRRF, flow cytometer, 1° production, nutrients, Fe, Meteorology and radiosondes. |
Logistics and Study Description | Langrangian dual tracer Fe addition. |
Synthesis and Modeling | SAGE data workshop, Wellington, NZ April 11 – 13, 2005. |
Reporting and Publications | IGAC Conference, Christchurch NZ 2004, SOLAS Open Science Conference, Halifax, Canada, 2004. Manuscripts: GRL; DSR in preparation. |
Funding and Support | FRST (NZ), NSF (US), individual institutional support. |
Comments and Notes | A mesoscale Fe addition experiment run after the seasonal autumnal bloom of the sub-Antarctic showed a small biological response to Fe addition. The SF6/3He dual-tracer experiment extended the range of gas exchange measurement into stronger wind regimes typical of the southern ocean. |
Weblinks | http://www.niwascience.co.nz/rc/atmos/sage |
Future Activities | If NZ-SOLAS performs a carry-over effort, the US hopes to participate. |
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