IMOS National Reference Stations: Salinity, Carbon, Nutrients and Oxygen

Nine Australian coastal sites have provided monthly water sample data for salinity, carbon, alkalinity, oxygen, and nutrients since 2008. Sampling is ongoing at seven sites, with historical data extending back to 1944 for three locations. The dataset is part of the Integrated Marine Observing Systems (IMOS) National Mooring Network.

Use Cases

• Analyzing long-term trends in ocean acidification based on carbon and alkalinity measurements.
• Modeling coastal nutrient cycles based on silicate, ammonium, nitrite/nitrate, and phosphate data.
• Assessing seasonal and interannual variability in water column properties based on monthly time-series sampling.
• Comparing biogeochemical conditions across distinct Australian coastal ecosystems based on data from nine sites.

Strengths

• Includes data from nine distinct coastal monitoring stations around Australia.
• Provides long-term time-series data, with historical records for three sites spanning from 1944 to 2010.
• Sampling began between 2008 and 2010 and is currently ongoing for seven sites.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Sampling ceased at two Western Australian sites (Ningaloo and Esperance) in 2013.

Provenance

Source

Integrated Marine Observing Systems (IMOS) National Mooring Network.

Collection Method

Monthly (or 3-monthly) water sample collection and laboratory analysis.

Time Range

Ongoing from 2008-2010, with historical data from 1944-2010 for three sites.

Freshness

Last updated 2026-06-17 01:23:59.004561; freshness should be verified.

Geography

Nine coastal sites around Australia: Tasmania, South Australia, Western Australia, Northern Territory, Queensland, and New South Wales.