Dataset: IMOS - ABOS Southern Ocean Time Series (SOTS) Sub-Facility
Description
The Southern Ocean Time Series (SOTS) sub-facility provides high temporal resolution observations in sub-Antarctic waters. Observations are broad and include measurements of physical, chemical and biogeochemical parameters from multiple deep-water moorings. The emphasis is on inter-annual variations of upper ocean properties and their influence on exchange with the deep ocean. The time-series provided permit investigation into issues of ocean physics and chemistry, climate change, carbon cycling and biogeochemical controls on marine productivity. These moorings provide cost-effective observations and overcome the infrequent availability of ships in the region.
The SOTS site is located in the sub-Antarctic Zone (SAZ), southwest of Tasmania, near 47S, 142E. SOTS observations are made from
- a deep ocean sediment trap mooring, used to collect sinking particles to quantify carbon transports. This mooring also provides current meter measurements and a deep ocean CTD to measure heat contents below the depth of ARGO profiling float measurements.
- the Pulse biogeochemistry mooring, used to measure upper ocean carbon cycle and phytoplankton productivity processes included sensor measurements of dissolved gases (O2, N2) and bio-optical properties. This mooring also collects water samples for measures of dissolved carbon and nutrients, and phytoplankton microscopic identification.
- additional biogeochemical sensors (CO2, O2, bio-optical, and bio-acoustic devices) mounted on the nearby Southern Ocean Flux Station air-sea flux mooring (and managed by the Air-Sea Flux Stations sub-facility).
General Information
- Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS)
- Create Date: 25/06/2017
- Update Date: 09/08/2023
- Landing Page: https://data.gov.au/dataset/3e336e33-8a51-4fa3-a59e-3b6ef511b8f5
- Keywords:
- ABOS
- ABOS-SOTS
- Australian Bluewater Observing System
- Biogeochemistry
- Biosphere
- Fish
- Geochemistry
- IMOS Facility
- IMOS Sub-Facility
- Marine Biology
- Microbiota
- Ocean Chemistry
- Ocean Circulation
- Ocean Currents
- Ocean Heat Budget
- Ocean Temperature
- Ocean Waves
- Ocean Winds
- Oceans
- Solid Earth
- Southern Ocean
- Southern Ocean Time Series
- Zooplankton
Distributions