Recommendation R20020184

Recommendation issued to: Bureau Of Meteorology

Recommendation details
Output No: R20020184
Date issued: 20 September 2002
Safety action status:
Background: Why this Recommendation was developed

Output text

The Australian Transport Safety Bureau recommends that the Bureau of Meteorology expedite a program to record output data from all available wind sensors and Low Level Wind Shear Alert Systems, and to retain that data for a minimum period of 30 days for use in reconstructing pertinent windshear events and as a basis for studies to effect system safety and improvement.

Initial response
Date issued: 19 April 2004
Response from: Bureau Of Meteorology
Action status: Closed - Accepted
Response text:

The following response dated 13 April 2004 was received from the Bureau of Meteorology:

Following a wind shear incident at Perth Airport in 1999 when a B747-400 scraped an engine pod on the ground while landing, steps have been taken to record high-frequency wind data from multiple Airservices anemometers. Initially, this was only planned for Sydney and Perth aerodromes. Data has been recorded at Sydney Airport since December 2001 and arrangements are still being put in place to record Perth data. The data is being recorded in the same format as that used for the Darwin LLWAS. This will allow components developed for Darwin LLWAS to be used in the analysis of the data and consequently to make an assessment of the level of risk associated with wind shear at Sydney and Perth.

Some work would need to be done if there was a requirement to provide data to this resolution from all major aerodromes in Australia. Currently, the Bureau archives METAR (half-hourly) and SPECI wind data from all its own anemometers, and one-minute data from around 120 locations, including major airports. However, data at this resolution would not be suitable for identifying wind shear.

Last update 03 April 2012