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BBC News - Met Office says 2010 'among hottest on record'

"It's a sign that we've got man-made global warming," said Dr Vicky Pope, head of climate science advice at the Met Office.
The last decade was the hottest on record, and Dr Pope warns it will turn out to have been even hotter by about 0.03C when corrections are made to data taken from buoys at sea.
The buoys take temperature measurements a metre below the surface, where it is slightly cooler than on the surface itself. Measurements were previously taken mainly by ships.
"A lot of the heat could be distributed to the deep oceans and we don't know what's going on there”
Climate sceptics say that until now, warming has plateaued over the last decade. The Met Office agrees that the rate of warming has slowed - but it maintains that is due to natural variability, not because man-made warming has stopped.
They think factors in the slower warming may have been - a natural downturn in solar radiation; a small reduction in water vapour in the stratosphere; a possible increase in aerosol emissions from Asia; and the fact that strong warming in the Arctic is poorly represented in the way data is collected.
Dr Pope says the slowdown in temperature rise is consistent with projections from climate models. She also says she expects warming to increase in the next few years.

Once we have finished correcting the data our forecasts will be correct especially in the Arctic where we haven't got any data from, but I have got a red crayon to fill the map in....


" . . it will turn out to have been even hotter by about 0.03C"

In other words, an order of magnitude removed from the accuracy of most meteorological temperature sensors. But you know what they say: "Never mind the accuracy, just look at the resolution".

but it maintains that is due to natural variability

When the numbers indicate a negative trend that's just "natural variability". When the trend is positive, that's absolute proof of the thesis.

I'm sure learned chaps wrote something about this sort of thinking.

There is another question that has struck me:

Upon what data will these "corrections" be performed?

Obviously it's the data from these silly sea bouys that measure the temperature 1m below the surface, but over what time frame? Surely if it's just the recent data that gets corrected then our scintists will not be comparing apples with apples.

Perhaps more tellingly, I suspect Dr Vicky is being a bit disingenuous. I seems to remember reading that when temperature measurements were taken by ships it wasn't done by some matelot hanging over the rail with a thermometer on a bit of string. Instead it was done by measuring the temperature of water as it was sucked into the ship for cooling the engines and so on. Now I'm no marine engineer, but common sense would imply that the inlets for this cooling water would also be a slightly below the waterline. Indeed I would suspect that such inlets are situated more than a metre below the waterline.

Now what would that do to Dr Vicky's gyppo correction factors?

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