High Quality weather station audit

Bridgetown Comparison 9510 raw temperature audit

Station opened 1 January 1907 audit to 31 December 2011

(See also Bridgetown 9617)

Bridgetown Comparison 9510 maximum temperature audit

At Bridgetown Comparison 9510 from 1 January 1907 to September 1972, whole .0 Fahrenheit degrees represented 31% of all maximum temperatures recorded.

1907-1972 represented 62.3% of the time span and had 43.3% of .0C and 24% of .5C maximum temperatures within the entire temperature record.

From 1972-2011, maximum temperature recordings of .0 Celsius degrees represented 18.7% of the total and .5C recordings represented 13.6% of the total of all fractions since 1972. Together, .0C and .5C represented 32.3% of all maximum temperatures recorded since metrication.

Bridgetown Comparison 9510 maxima raw data feed

Bridgetown Comparison BoM High Quality adjusted anomalies above

Bridgetown Comparison unadjusted raw temperatures below

Bridgetown Comparison 9510 minimum temperature audit

At Bridgetown Comparison 9510 from 1 January 1907 to September 1972, whole .0 Fahrenheit degrees represented 30.7% of all minimum temperatures recorded.

1907-1972 represented 62.3% of the time span and had 42.4% of .0C and 24.8% of .5C minimum temperatures within the entire temperature record.

From 1972-2011, minimum temperature recordings of .0 Celsius degrees represented 19.2% of the total and .5C recordings represented 13.6% of the total of all fractions since 1972. Together, .0C and .5C represented 32.8% of all minimum temperatures recorded since metrication.

Bridgetown Comparison 9510 minimum raw data feed

Bridgetown Comparison BoM High Quality adjusted anomalies above

Bridgetown Comparison unadjusted raw temperatures below

Bridgetown 9617 raw temperature audit

Station opened 5 March 1998 audit to 31 December 2011

Bridgetown 9617 maximum temperature audit

At Bridgetown 9617 from 1998-2011, maximum temperature recordings of .0 Celsius degrees represented 41.3% of the total and .5C recordings represented 6.9% of the total of all fractions since 1972. Together, .0C and .5C represented 48.3% of all maximum temperatures recorded since 5 March 1998.

Bridgetown 9617 maxima raw data feed

Bridgetown 9617 minimum temperature audit

At Bridgetown 9617 from 1998-2011, minimum temperature recordings of .0 Celsius degrees represented 41% of the total and .5C recordings represented 6.6% of the total of all fractions since 1972. Together, .0C and .5C represented 47.6% of all minimum temperatures recorded since 5 March 1998.

Bridgetown 9617 minima raw data feed

Extracts from Simon Torok thesis The development of a high quality historical temperature data base for Australia (1996, vol 2) which first established Australia's High Quality temperature record:

Bridgetown Comparison 9510 station equipment history

Air Temperature
01/JAN/1901 INSTALL Thermometer, Mercury, Dry Bulb (Type Dobbie S/N - CBM4837) Surface Observations
30/JAN/2009 REPLACE Thermometer, Mercury, Dry Bulb (Now WIKA S/N - 27452) Surface Observations

Maximum Temperature
01/JAN/1901 INSTALL Thermometer, Mercury, Max (Type Dobbie S/N - M7015) Surface Observations
12/MAR/2004 INSTALL Thermometer, Mercury, Max (Type WIKA S/N - 24197) Surface Observations
03/MAR/2006 REMOVE Thermometer, Mercury, Max (Type WIKA S/N - 24197) Surface Observations
05/FEB/2001 REPLACE Thermometer, Mercury, Max (Now Dobbie S/N - 20552) Surface Observations
09/FEB/2000 REPLACE Thermometer, Mercury, Max (Now Dobbie S/N - 3989) Surface Observations
09/MAR/2004 REPLACE Thermometer, Mercury, Max (Now WIKA S/N - 24204) Surface Observations
25/JUL/2007 REPLACE Thermometer, Mercury, Max (Now WIKA S/N - 27697) Surface Observations
29/JAN/2009 REPLACE Thermometer, Mercury, Max (Now WIKA S/N - 30318) Surface Observations
28/JAN/2009 REPLACE Thermometer, Mercury, Max (Now WIKA S/N - 30339) Surface Observations
Minimum Temperature
01/JAN/1901 INSTALL Thermometer, Alcohol, Min (Type Dobbie S/N - M7015) Surface Observations
05/FEB/2001 REPLACE Thermometer, Alcohol, Min (Now Dobbie S/N - 20717) Surface Observations
08/FEB/2001 REPLACE Thermometer, Alcohol, Min (Now Dobbie S/N - 20717) Surface Observations
05/JAN/2006 REPLACE Thermometer, Alcohol, Min (Now Dobbie S/N - 43061) Surface Observations
13/APR/2011 REPLACE Thermometer, Alcohol, Min (Now WIKA S/N - 31871) Surface Observations

Bridgetown 9617 station equipment history

Air Temperature
24/FEB/1998 INSTALL Humidity Probe (Type Rotronics S/N - 2292-024) Surface Observations
24/FEB/1998 INSTALL Temperature Probe - Dry Bulb (Type Rosemount S/N - 0232) Surface Observations

Maximum Temperature (No Electronic History)
Minimum Temperature (No Electronic History)

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