NO PUBLIC RECORD OF THE SOUTHERN HEMISPHERE TEMPERATURES
In 2016, as a result of the mistakes the WMO had made with two previous baseline temperatures below, when the public started questioning the validity of various statements the CRU had been making, they chose a new baseline temperature reference of 13.76 C for the period of 1850-1900, a temperature which the public could not dispute because of the lack of data available.
NASA, CRU East Anglia and British Meteorology Office had published global temperatures using 15 C (59 C), the average global temperature they had maintained for the period of more than 100 years up till 1994, as a baseline reference. Then in 1998, Phil Jones the senior scienist at CRU, convened a meeting with all the main temperature monitoring authorities which resulted in an agreement to reduce the baseline temperature from 15 C down to 14 C (57 F)
“According to the long-term instrumental temperature data, the Southern Hemisphere record is “mostly made up”. This is due to an extremely limited number of available measurements both historically and even presently from Antarctica to the equatorial regions. “Ships travel on well-established routes so that vast areas of ocean, are simply not traversed by ships at all, and even those that do, may not return weather data on route”. In 1981, NASA’s James Hansen et al reported that “Problems in obtaining a global temperature history are due to the uneven station distribution, with the Southern Hemisphere and ocean areas poorly represented. The New York Times reported there was too little temperature data from the Southern Hemisphere to draw any reliable conclusions. The report, prepared by German, Japanese and American specialists, appeared in the Dec. 15 issue of Nature, the British journal and stated that “Data from the Southern Hemisphere, particularly south of latitude 30 S, are so meager that reliable conclusions are not possible,” the report says.
AI Overview: The integration of satellite technology with drifting buoys was a critical development for achieving accurate, real-time oceanographic and meteorological data in the Southern Hemisphere a region historically plagued by data voids. This combined system became particularly significant during the First GARP Global Experiment (FGGE) in 1979, where a major international effort deployed over 300 drifting buoys to measure surface pressure and sea surface temperatures.
4 Comments
Why couldn’t they stick with the the data previously published at least there was a starting point. I am surprised that the AI seems programed to overcome shortfalls.
The 1951-1980 at 15 C was used by the British and US Authorities from 1900 up to 1994, then in 1998 Phil Jones, the chief scientist at CRU called a meeting where it was agreed to publish the 1998 temperature at 14 C for the 1961-1980 period. Previous graphs could retain the same anomalies and the only difference would be the baseline temperature. They have now changed the baseline again using the 1850-1900 period with a dodgy average temperature of 13.76 C.
You can scrub any temperature readings before 1980 that were all over the place. All we have are post 1980 when Sea Bouys in conjunction with satellites were employed.
It is the publicly funded media who are calling the shots on Global warming. The ABC, CSIRO, BoM, SBS, then you have the overseas media like the BBC, CNN plus the authorities on climate change like IPCC and WMO that we have to contend with.