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Earth Science | Oceans | Salinity/Density | Salt Transport
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Salinity, linearly interpolated from CARS2000 mean and seasonal fields to 0.1 degree spaced grid, at depths of 0, 150, 500, 1000 and 2000 metres. The loess filter used to create CARS2000 resolves at each point a mean value and a sinusoid with 1 year period (and in some cases a 6 month period sinusoid - the "semi-annual cycle".) The provided "annual amplitude" is simply the magnitude of that annual sinusoid. CARS is a set of seasonal maps of temperature, salinity, dissolved oxygen, nitrate, phosphate and silicate, generated using Loess mapping from all available oceanographic data in the region. It covers the region 100-200E, 50-0S, on a 0.5 degree grid, and on 56 standard depth levels. Higher resolution versions are also available for the Australian continental shelf. The data was obtained from the World Ocean Atlas 98 and CSIRO Marine and NIWA archives. It was designed to improve on the Levitus WOA98 Atlas, in the Australian region.
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INSTANT: A New International Array to Measure the Indonesian Throughflow. The INSTANT field program (International Nusantara Stratification And Transport) began in August 2003 and consists of a 3-year deployment of an array of moorings and coastal pressure gauges that will directly measure sea level and full depth in situ velocity, temperature, and salinity of the ITF. For the first time, simultaneous, multipassage, multiyear measurements will be available, and allow the magnitude and properties of the interocean transport between the Pacific and Indian Oceans to be unambiguously known. The array will also provide an unprecedented data set revealing how this complex and fascinating region responds to local and remote forcing at many timescales never before well resolved. Moorings were located at the following locations: (115 45.48, 8 26.77) (115 53.77, 8 24.56) (122 58.36, 11 31.76) (122 57.40, 11 22.19) (122 51.5, 11 16.6) (122 46.8, 11 9.67) (125 32.26, 8 32.33) (125 2.26, 8 24.04)