This dataset contains the underway data collected during the Aurora Australis Voyage 4 1999-2000. This voyage visited Macquarie Island, Davis, Sansom Island and Mawson, as well as carrying out a ship and helicopter based seal survey. Underway (meteorological, fluorometer, thermosalinograph and bathymetric) data are available online via the Australian Antarctic Division Data Centre web page (or via the Related URL section). For further information, see the Marine Science Support Data Quality Report at the Related URL section.
See the Marine Science Support Data Quality and Programmer's Reports at the Related URL section.
Where data for a particular sensor do not exist for a particular time, the last known value is used unless the sensor has been disabled or has encountered an error. For example, some sensors only record data every minute, but the resolution for the underway dataset is 10 seconds, so the same value will be used 6 times a minute. No averages are taken for sensors that capture data at a rate other than every 10 seconds. Instead, each record will be a snapshot of each sensor at that time.
Data are available online via the Australian Antarctic Division Data Centre web page.