Category Archives: Climate indicators

Global cooling in 1976 – deja vu all over again

Alan Wilkie – well known TV weatherman on the Australian Channel 7 of a few decades ago. Enjoy the four scanned pages from his 1976 book describing global cooling and the associated bad effects breaking out here and there around the globe.
These days we are constantly badgered by utter twaddle about “global warming”. I am interested to hear readers views on what a “mainstream” informed person was saying three and a half decades ago. (Edited 6 Dec)
Alan Wilkie
Our Changing Weather Patterns
Page 47
Page 48
Ice Ages
Page 50
Page 51

My reason for posting this just now is the fascinating 1974 CIA article uncovered by Maurizio Morabito.

New York Times runs interesting story about impacts of “global warming” around Juneau – Alaska but temperature data show no warming.

The New York Times reports how land is rising from the sea around Juneau and that this is due to glaciers melting. Whatever the relationships between these various phenomena – temperature data from NASA GISS – NCDC and University of Alabama at Huntsville satellite data for the lower troposphere – all point to there being no significant warming in the Juneau 2.5 degree grid box over 109 years 1900-2008.
Juneau T trends 109 yrs
Notes on the data – the GISS warm anomalies post the mid-1990’s look too warm compared to the other two datasets and the surface warmth in 1981 was not found in the lower troposphere. You would need to examine all available surface data to resolve the last 30 years better. As usual when T data are examined closely, you find problems.

How reliable are Coral Sea SST (Sea Surface Temperature) data ?

There is a discussion at the Jennifer Marohasy blog, “Sea-surface Temperatures along the Great Barrier Reef” Posted by John McLean, January 5th, 2009, re recent research from AIM in Townsville that global warming is harming the Great Barrier Reef (GBR). The AIM scientists use the UK Hadley Centre SST data to show global warming is affecting coral.
This got me to take another look at a post of mine on Willis Island in the Coral Sea, a site that refuses to warm.
[Note here how politicians were running with the pro-warming conclusions, long before the published paper by De’ath et al is available.]
At the time I compiled Hadley and Reynolds SST data along with lower troposphere satellite temperature trends for the grid cell 15 to 20 degrees South and 145 to 155 East, which neatly has Willis Is. fairly central and extends west to the GBR coast.
This graphic shows that the Hadley SST data warms by ~0.75 degrees C while Willis Island land data actually cools slightly.
Willis Is composite trends
Now a good photo of the Willis Is. weather instruments can be found on the “Australia’s Reference Climate Station Network” web page.
www.bom.gov.au/climate/change/reference.shtml#rcsmap
by clicking on Willis Island on their map.
[Let me know where the actual BoM RCS temperature data can be downloaded from please]
Willis Is weather station
Now take in this idyllic scene and ask yourself, could the sea surface temperatures warm without warming air above them, which must then be reflected by the thermometers inside the Stevenson Screen which looks to be only 100-200 metres away ? That is what the Hadley Centre and the US based NOAA/NCDC are asking us to believe with their over-adjusted SST data. That the sea can warm without affecting air so close over the island. Note both the satellite data and Willis Is. cool slightly 1979-2005 while the Hadley SST’s warm. For the period 1982-2005 both the satellite data and Willis Is. cool slightly while both sets of SST’s warm.
Note: I downloaded the SST and satellite data from the KNMI website www.climexp.knmi.nl/
Continue reading How reliable are Coral Sea SST (Sea Surface Temperature) data ?

“Poster child for climate change” – you be the judge

The Canberra Times (plus many other media too) reports on 4th December 2008 that this Lemuroid possum from the north Queensland wet tropic ranges near Daintree, has declined in numbers and quotes Professor Williams from James Cook University (JCU) who says,

“We cannot say they are extinct, but all the signs point to the species being in very serious trouble.”

Lemuroid possum
Picture from Canberra Times
Climate change is mentioned as a root cause for the species decline.

The Canberra Times ran another more detailed story on the 6th and Professor Williams is quoted saying,

“…climate data shows the disappearance of the lemuroids coincides with record summer temperatures in 2005..”

Read the account of how this story was spread worldwide.

In his online 2006 paper, “Vertebrates of the Wet Tropics Rainforests of Australia Species Distributions and Biodiversity” I looked for the scientific basis for attributing climate change as the cause of the possum problems.
This is all I could find.

1.1 GLOBAL CLIMATE CHANGE IN THE WET TROPICS
There is no doubt that the global climate is changing due to anthropogenic greenhouse gas emissions. Average temperatures have already risen approximately 0.6°C and are continuing to increase (Houghton et al. 2001). The Australian Bureau of Meteorology has announced that 2005 was the hottest year on record. Regional climate modeling in Australia suggests that during the remainder of this century we will experience an increase in average temperatures of 1.4 to 5.8°C, combined with increases in atmospheric CO2 concentrations.

In 2006 I criticised the BoM (Bureau of Meteorology, Australian) statements that 2005 was our hottest year ever.

This BoM map of mean temperature anomaly, 1 Jan 05 to 31 Dec 05 shows with crystal clarity that the Cape York region is only a whisker above the average, with an anomaly of only zero to 0.5. If anybody has equivalent maps for max and min temperatures, please pass them on, it is daytime (maximum) temperatures which are the issue. For larger copy with coastal towns marked.

2005 BoM mean temperature anomalies

Both the Climate Research Centre, University of Norwich and the NASA satellite lower troposphere trends from the University of Alabama at Huntsville find that 1998 was hotter than 2005 over Australia and it is highly likely the RSS satellite data would find the same.

I have checked BoM station data and there is none from the range-top possum habitat but 31034 Kairi Research Station just east of Atherton, Jan 1965 to current looks the best sited with possum habitat to both east and west. Kairi is marked K on map below and Atherton marked A. From this map in Professor Williams online paper above, the range of the lemuroids extends both north and south of Atherton so Kairi is central to their range but for sure is a lower altitude than their habitat. Kairi data shows that December 2005 was only the 12th warmest month, see list below. This goes against the thrust of what the JCU Professor is claiming which is that he noticed the lemuroids almost absent after the “hottest year” of 2005.
See chart of Kairi mean monthly maximum temperature.
List of 12 warmest Kairi months.

Year

Month

KairiMax

1994

1

31.69

2001

12

31.4

1992

11

31.04

1990

2

30.99

1985

12

30.95

1979

12

30.79

1987

1

30.48

1969

11

30.48

1995

12

30.34

1973

1

30.34

1986

12

30.33

2005

12

30.3

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Searching further afield for relevant temperature trends, in 2006 I looked at the nearby fairly long-term coastal station Cooktown AMO and graphed it with Willis Island,

Clearly Cooktown had warm periods in the early 20th Century. Much of the rainy weather for the Daintree ranges blows in from the Coral Sea and note the Willis Island trend shows no warming.

In a nutshell, the lemuroid possums have evolved and survived for many millions of years and I can not see anything in a century of climate trends that should harm them.

In due course I am hoping to see details of temperature data from the possum habitat.

Professor Robert M Carter: The Futile Quest for Climate Control

Online at Quadrant
Noteworthy that we have just heard climate change Minister Wong in Poland say that Australia will not act alone. Phew, some tiny quota of common sense at last, Prostate Problems – Research has found that men who affected by heart problems and high blood pressure develop erectile issues sooner that of men with healthy physique. It could also be the result of some bad habits such as smoking, drinking or drugs consumption are likely to worsen the condition of erectile dysfunction by hindering the blood supply to the reproductive organs. The dosage to the beginners is less but as the blood supply is insufficient men vardenafil cost fail to attain erection or sustain erection during the game of love. Nitric oxide is a molecule viagra prices canada which helps 50 trillion cells to communicate with each other after transmitting the signals throughout the body. when she is safely out of the way of the extemist Australian media. Australia could reduce itself back to the stone age and global temperatures would not alter one iota.

It is official from the Hadley Centre, ocean cooling might stall global warming for a decade

Bloomberg news service quoting the German Leibniz Institute of Marine Sciences saying that, “Parts of North America and Europe may cool naturally over the next decade, as shifting ocean currents temporarily blunt the global-warming effect caused by mankind”. At the UK Met Office HQ for Global Warming Gurus, the Hadley Centre, Research scientist Richard Wood, says “Natural variations over the next 10 years might be heading in the cold direction,” Wood said. “If you run the model long enough, eventually global warming will win.”
Note: At the Leibniz site, follow link on right hand side to, “New Nature Paper: Will global warming take a short break ?”

Thanks to Harold from Seminole Florida for the lead to these articles. As he says, “UN is waffling and spinning on cooling ?”, exactly Harold.

Is the PDO elephant knocking at the door again ?

NASA has just drawn our attention to their interesting map of the PDO (Pacific Decadal Oscillation) anomaly for April 14–21. As NASA says, “…while the La Niña was weakening, the Pacific Decadal Oscillation—a larger-scale, slower-cycling ocean pattern—had shifted to its cool phase.”
Annual PDO

This issue is important to the “greenhouse” debate and arguments over the causes of “global warming” because the ~1976 PDO shift to more positive anomalies can be seen clearly as a warming jump in many long term temperature data. A warming jump that looks unlikely to be caused by small steady increases in the trace gas, atmospheric carbon dioxide.

Much is written on the PDO and just 2 other pages include “The Pacific Decadal Oscillation (PDO)” with a long term graphic of monthly anomalies and, “A Pacific interdecadal climate oscillation with impacts on salmon production”

Hadley Centre versus Reynolds (NOAA) SST data

Subtitle: “0.45 deg C per Century warming in Hadley Centre sea surface temperature (SST) data for both hemispheres compared to Reynolds (NOAA) SST data 1982-2008”

I have been surprised at the magnitude of the hemispheric differences between HadSST2 and Reynolds V2 SST data, equivalent to 0.45 degrees C per Century.

In 2006 I found errors in Hadley Centre SST data in previous work around New Zealand, for example.
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In August 2006 I posted: “What integrity is there in global SST trends ?”

If anyone has the computing ability and time to produce some global maps of monthly differences between HadSST2 and Reynolds V2 SST data, please let me know. This would allow homing in exactly where the discrepancies are located and assessing the validity of both series against other data.

Warming bias in media releases from the Australian Bureau of Meteorology (BoM)

“Record hot start to December 2007”, trumpets the BoM Darwin Office on Monday 3 December 2007.

When you check to see daily max and mins for a range of Northern NT stations,
(scroll down past the green rainfall data to the pink and blue max and min temperature data). You find that this heat wave was pretty much a one day wonder in many places, a couple of days in some.
Further down the page I note how the BoM show bias towards reporting warming events by not putting out a media release about the stunning cold record day 20 June 2007 etc as recorded at Tennant Creek and many other places on 19th, 20th and 21st June 2007 across the continent from Halls creek to SW Qld, to NW NSW.
Continue reading Warming bias in media releases from the Australian Bureau of Meteorology (BoM)