Australian sea surface air temperatures
The project, funded through the Department of Climate Change and Energy Efficiency, aims to identify long period sea level changes, "with particular emphasis on the enhanced greenhouse effect on sea level". The National Tidal Centre operated by the Australian Bureau of Meteorology maintains an array of 14 Sea-Level Fine Resolution Acoustic Measuring Equipment (SEAFRAME) stations which accurately measure sea level and record meteorological paramaters including temperature. The network is designed "to monitor sea level and climate around the coastline of Australia". "SEAFRAME gauges not only measure sea level by two independent means, but also observe a number of “ancillary” variables - atmospheric pressure, air and water temperatures, wind speed and direction. The SEAFRAME observations contribute to the research and analysis efforts of the Centre for Australian Weather and Climate Research (CAWCR) and the Bureau’s National Climate Centre to investigate and monitor regional climatic and oceanographic conditions." (Source) The stations are at Cape Ferguson, Rosslyn Bay, Port Kembla, Burnie, Spring Bay, Portland, Port Stanvac, Thevenard, Esperance, Hillarys, Broome, Darwin, Milner Bay and Cocos. These stations are scattered around Australia, all are at sea level and are said to be isolated from Urban Heat Influence - although the satellite images below suggest that questions might be asked about heat from nearby industrial and urban development, dependent upon prevailing winds. However, the Bureau of Meteorology has dismissed the validity of the tidal station thermometer readings because 20 years is not considered an adequate time span and the instruments are not calibrated to the required bureau standards - see below.
However, each station has different periods of unbroken monthly temperature records within which accurate trendlines can be calculated to 2011. These charts are marked below as "clean". Download spreadsheet data (Excel 418kb). See also Sea Level Change in Australia: What’s Likely? by Ken Stewart. Sea level air temperatures Cape Ferguson satellite image ![]() ![]() Top of page Rosslyn Bay satellite image ![]() ![]() Top of page Port Kembla satellite image ![]() ![]() Top of page Burnie satellite image ![]() ![]() Top of page Spring Bay satellite image ![]() Top of page Portland satellite image ![]() ![]() Top of page Port Stanvac satellite image ![]() Top of page Thevenard satellite image ![]() ![]() Top of page Esperance satellite image ![]() ![]() Top of page Hillarys satellite image ![]() ![]() Top of page Broome satellite image ![]() ![]() Top of page Darwin satellite image ![]() Top of page Milner Bay satellite image ![]() ![]() Top of page Cocos satellite image ![]() ![]() Top of page ![]() Note: the chart above of all 14 stations is since they were operating without major interruptions, although Jun-Nov 03 had no temperatures recorded at Groote Eylandt; Feb-Mar 04 at Rosslyn Bay; Oct 2003 at Cape Ferguson; and Dec 10-Oct 11 at Port Stanvac. ![]() Note: the chart above of all 14 stations is since all had begun operation, although there are significant breaks in recording: Dec 95-Feb 97 and Oct 03 at Cape Ferguson; Dec 95-Feb 97 and Feb-Mar 04 at Rosslyn Bay; Sep 96-Apr 98 at Port Kembla; Mar-Apr 97 at Burrie; Apr-Jul 08 and Dec 10-Oct 11 at Port Stanvac, Mar 96-Feb 98 at Thevenard; Oct-Nov 98 and Apr-Aug 2000 at Esperance; Jul 96 and May-Aug 2000 at Broome; and Jun-Nov 03 at Groot Elylandt. Top of page
Mr Prowse received the following response from the BoM's Acting Director of Meteorology Dr Rob Vertessy: ![]()
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The dismissal of the tidal station thermometers as inadequate for temperature trends raises pertinent questions:
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