State of the Climate 2017

By Paul Homewood

 

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https://www.thegwpf.org/content/uploads/2018/03/State-of-the-Climate2017.pdf

 

The GWPF has published its State of the Climate 2017 Report, written by Ole Humlum, former Professor of Physical Geography at the University Centre in Svalbard, Norway, and Emeritus Professor of Physical Geography, University of Oslo, Norway.

 

Here are the main points:

 

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Lower troposphere temperatures show the persistence of the pause:

 

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Of particular interest is his comment about sea levels. Here is the section explaining tidal gauge trends:

 

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Note how the 10-year sea level changes in the bottom panel have a wavy pattern, but the recent rate of rise is no different to many other periods since 1900.

[The graph is not very clear, but the nine stations used are Auckland, Trieste, Newlyn, Cascais, Honolulu, Balboa, San Diego, Key West and New York}

While the relative sea level rise (RSL) is the only thing that matters at the individual sites concerned, it should not necessarily be expected to match the absolute global rise, as measured by satellites. But what is key is how the rate of rise has changed since 1900. In other words, is it accelerating?

We only have satellite data going back to 1992, so that is unable to answer the question. But Holgate’s tidal gauge data strongly suggests that there has been no acceleration.

via NOT A LOT OF PEOPLE KNOW THAT

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March 27, 2018 at 06:33AM

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