This experiment produced current records from

• 3 ADCPs
• 9 Aanderaa RCMs
• 5 Neil Brown acoustic current meters

deployed on 5 moorings. You can view metadata and/or download the records by clicking on links in the table below. Each record is identified in the table by its depth and the name of the mooring. A brief description of the experiment also is available. You may want to look at a map of the array to see where the moorings were. If you download any of the current meter records you should review the note on file format. From here you can also move up one level to the list of WOCE experiments.

The instruments on these moorings sampled at intervals varying from 10 minutes (the Neil Brown acoustic current meters) to 1 hour (the ADCPs) to 3 hours (the Aanderaas). All of the data in this archive have been filtered and have a time increment of 6 hours. Cosine-Lanczos filters with a "cut-off period of 40 hours" were employed to remove inertial energy, the diurnal and semidiurnal tides, and higher frequencies.

This disk includes a data report for ICM6 prepared by CSIRO. The report is a file in PDF format that you can download or view (depending on the settings in your browser) by clicking here.

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Six moorings with a total of 22 instruments were deployed along a line extending 110 km westwards off the northwest coast of Australia, spanning water depths ranging from 250 to 3050 m (see map). The current meters included 4 RDI upward-looking ADCPs, 5 Neil Brown ACM2s, and 13 Aanderaa RCMs. Because of acoustic release failures it was necessary to trawl for two of the moorings during the recovery phase. 18 instruments were recovered, 17 of which produced useful data.

The moorings were deployed in August 1994. Moorings 1, 2, 3, and 6 were recovered without incident during June 1996; Moorings 4 and 5 were partially recovered by trawling about two months later. Only one current meter from Mooring 4 was recovered, and it produced no useable data.

Related publications

Domingues, C.M., M. Tomczak, S. Wijffels, S. Beggs and J.A. Church (1999): Direct observations of the Leeuwin Current at 22S (August 1994 - June 1996). Australia CSIRO Marine Laboratories Report No. 235, 52pp.

Domingues, C.M., S. Wijffels, M. Tomczak and J.A. Church (1999): Volume transports and structure of the Leeuwin Current at 22S - WOCE ICM6. International WOCE Newsletter No. 37, 36-40.

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netCDF is a self-documenting format that can be accessed by a variety of software tools. We have included here a Matlab script that can be used to read netCDF current records in an environment that contains the Matlab/netCDF interface created by CSIRO. You can Click here to learn more about netCDF.

We are aware that users who are unfamiliar with netCDF or who lack software to deal with it, may find the netCDF format more a deterrent than an aid to effective use of the data. We have included in this CDROM set a second disk that is identical to this one, except that the current meter records have OSU's "Stranger" format. The Stranger format, like netCDF, is self-documenting but utilizes the ASCII code. It is easily readable by both humans and computers; you may find it preferable to netCDF.

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