BBC’s Bogus Antarctic Heatwave Scare

By Paul Homewood

 

 

This month’s BBC Climate Check focusses on Antarctica:

image

https://www.bbc.co.uk/weather/features/61259046

The first claim by Sarah Keith-Lucas that Antarctica is warming at three times the global average is totally fallacious. As satellites show, temperatures there have barely changed at all in the last two decades, and are lower than they were in the 1980s:

Time series plot

https://images.remss.com/msu/msu_time_series.html

It is true that satellite coverage does not extend beyond 70S, but there are very few land stations further south either, so we simply don’t know what the average temperatures have been.

However a study last year, which was based on both station data and reanalysis, confirmed a cooling trend in Eastern and Western Antarctica. Even the warming trend  in the Peninsula had stopped in 1998:

image

image

https://www.mdpi.com/2073-4433/12/2/217/htm

This confirms what other studies have confirmed, for instance:

 

image

https://www.sciencedirect.com/science/article/pii/B9780128045886000070#:~:text=The%20Antarctic%20Peninsula%20has%20been,7.14).

She then moves onto that “heatwave” which struck in March. She says that “scientists agree” that global warming is making Antarctic heatwaves more common and severe. However she then goes on to explain that this one was due to a weather event, an “atmospheric river”, which drew in warm, moisture laden air from Australia:

image

In other words, it had nothing to do with climate change at all.

As for these heatwaves getting worse, there is no evidence for that at all in the daily temperature data at the South Pole:

time series

image

https://climexp.knmi.nl/gdcntmax.cgi?id=someone@somewhere&WMO=AYW00090001&STATION=AMUNDSEN-SCOTT&extraargs=

Despite that “heatwave”, temperatures for the whole of March at Amundsen-Scott were much lower than usual:

image

https://data.giss.nasa.gov/cgi-bin/gistemp/stdata_show_v4.cgi?id=AYW00090001&ds=14&dt=1

 

 

Neither is there any evidence of rising monthly temperatures or temperature anomalies there all year round:

 

 time series

 

 anomalies

https://climexp.knmi.nl/gettemp.cgi?id=someone@somewhere&WMO=89009&STATION=AMUNDSEN-SCOT&extraargs=

 

All in all, the BBC’s attempt to claim that Antarctica is melting down, based on one day’s weather, is totally bogus.

via NOT A LOT OF PEOPLE KNOW THAT

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May 1, 2022 at 07:27AM

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