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uk.sci.weather (UK Weather) (uk.sci.weather) For the discussion of daily weather events, chiefly affecting the UK and adjacent parts of Europe, both past and predicted. The discussion is open to all, but contributions on a practical scientific level are encouraged. |
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#1
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https://www.fnmoc.navy.mil/products/...sstanomaly.gif
I've noticed for a few weeks now how the global SST anomalies are generally +ve in the north and -ve in the south. I was wondering whether this has any significance to global patterns to come? -- Keith (Southend) http://www.southendweather.net e-mail: kreh at southendweather dot net |
#2
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![]() Keith (Southend) wrote: https://www.fnmoc.navy.mil/products/...sstanomaly.gif I've noticed for a few weeks now how the global SST anomalies are generally +ve in the north and -ve in the south. I was wondering whether this has any significance to global patterns to come? -- Keith (Southend) http://www.southendweather.net e-mail: kreh at southendweather dot net As global warming causes the amount of arctic sea ice to decrease, models show the heat equator being displaced northwards. Eventually we are likely to end up with one pole ice free. (This has happened in the past.) Perhaps these SST maps are showing signs of this occuring. Graham Penzance |
#3
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Graham Easterling wrote:
Keith (Southend) wrote: https://www.fnmoc.navy.mil/products/...sstanomaly.gif I've noticed for a few weeks now how the global SST anomalies are generally +ve in the north and -ve in the south. I was wondering whether this has any significance to global patterns to come? -- Keith (Southend) http://www.southendweather.net e-mail: kreh at southendweather dot net As global warming causes the amount of arctic sea ice to decrease, models show the heat equator being displaced northwards. Eventually we are likely to end up with one pole ice free. (This has happened in the past.) Perhaps these SST maps are showing signs of this occuring. Graham Penzance Interesting thought, although surely in the interim this would have the opposite effect with the faster melting pole(s) in the summer months introducing colder waters and an increased -ve SST anamoly. Whereas in the winter the SST's would appear more +ve with less ice forming than of the past. -- Keith (Southend) http://www.southendweather.net e-mail: kreh at southendweather dot net |
#4
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![]() Keith (Southend) wrote: Graham Easterling wrote: Keith (Southend) wrote: https://www.fnmoc.navy.mil/products/...sstanomaly.gif I've noticed for a few weeks now how the global SST anomalies are generally +ve in the north and -ve in the south. I was wondering whether this has any significance to global patterns to come? -- Keith (Southend) http://www.southendweather.net e-mail: kreh at southendweather dot net As global warming causes the amount of arctic sea ice to decrease, models show the heat equator being displaced northwards. Eventually we are likely to end up with one pole ice free. (This has happened in the past.) Perhaps these SST maps are showing signs of this occuring. Graham Penzance Interesting thought, although surely in the interim this would have the opposite effect with the faster melting pole(s) in the summer months introducing colder waters and an increased -ve SST anamoly. Whereas in the winter the SST's would appear more +ve with less ice forming than of the past. -- Keith I take your point, but the rate of ice melt is probably quite slowing now, so the cooling affect less than say June/July. Graham |
#5
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![]() Graham Easterling wrote: Keith (Southend) wrote: Graham Easterling wrote: Keith (Southend) wrote: https://www.fnmoc.navy.mil/products/...sstanomaly.gif I've noticed for a few weeks now how the global SST anomalies are generally +ve in the north and -ve in the south. I was wondering whether this has any significance to global patterns to come? -- Keith (Southend) http://www.southendweather.net e-mail: kreh at southendweather dot net As global warming causes the amount of arctic sea ice to decrease, models show the heat equator being displaced northwards. Eventually we are likely to end up with one pole ice free. (This has happened in the past.) Who says? And how do you define past? In monkey world or in reality? The cycle is probably self limiting proof of s divine intelligence as we are all still alive despite ourselves. It ould seem that the storms seen chasing up the side of Norway instead of impaling themselves on the nice receptive fjords like they are supposed to, are providing a long term solution - or should I say sediment: Like any other type of phytoplankton, coccolithophores are one-celled marine plants that live in large numbers throughout the upper layers of the ocean. Unlike any other plant in the ocean, coccolithophores surround themselves with a microscopic plating made of limestone (calcite). These scales, known as coccoliths, are shaped like hubcaps and are only three one-thousandths of a millimeter in diameter. What coccoliths lack in size they make up in volume. At any one time a single coccolithophore is attached to or surrounded by at least 30 scales. Additional coccoliths are dumped into the water when the coccolithophores multiply asexually, die or simply make too many scales. In areas with trillions of coccolithophores, the waters will turn an opaque turquoise from the dense cloud of coccoliths. Scientists estimate that the organisms dump more than 1.5 million tons (1.4 billion kilograms) of calcite a year, making them the leading calcite producers in the ocean. http://earthobservatory.nasa.gov/Lib...colithophores/ Perhaps these SST maps are showing signs of this occuring. Interesting thought, although surely in the interim this would have the opposite effect with the faster melting pole(s) in the summer months introducing colder waters and an increased -ve SST anamoly. Whereas in winter the SST's would appear more +ve with less ice forming than of the past. I take your point, but the rate of ice melt is probably quite slowing now, so the cooling affect less than say June/July. As the apparent difference in the pressures of High and Low systems seems to be self limiting (in that negative NAOs seem to provide mild weather and extremely positive ones seem to produce stormy extremes) might it be that after a period of negativity, the system will right itself? But is that what the world wants? Take a look at earthquakes archives for when the NOA is negative. The planet seems a lot more stable and a lot less dangerous in them. And who doesn't like mild winters and warm summers? Well, apart from farmers. And even then I bet they prefer the weather to be nice f there was no crop damage involved. Perhaps they aught to be encouraged to grow fruit trees. It's been exceptionally good for plums and berries this year. Maybe there are more of these negative vibes and they aught to be preparing for it. Why do I get the impression that the state would rather hang muslims than sort all that out? And why did the wet-knickers at the BBC pick this particular moment to give up on meteorology altogether? (Apart from Peter Gibbs of course -but he can't hold out forever.) |
#6
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![]() Weatherlawyer wrote: Woops http://earthobservatory.nasa.gov/Lib...colithophores/ I forget the lead in: Barents Sea Phytoplankton Bloom http://earthobservatory.nasa.gov/New...3?img_id=17387 |
#7
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In message . com,
Weatherlawyer writes Take a look at earthquakes archives for when the NOA is negative. The planet seems a lot more stable and a lot less dangerous in them. And who doesn't like mild winters and warm summers? Me, for one! -- Paul Hyett, Cheltenham (change 'invalid83261' to 'blueyonder' to email me) |
#8
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Keith (Southend) wrote:
Graham Easterling wrote: Keith (Southend) wrote: https://www.fnmoc.navy.mil/products/...sstanomaly.gif I've noticed for a few weeks now how the global SST anomalies are generally +ve in the north and -ve in the south. I was wondering whether this has any significance to global patterns to come? -- Keith (Southend) http://www.southendweather.net e-mail: kreh at southendweather dot net As global warming causes the amount of arctic sea ice to decrease, models show the heat equator being displaced northwards. Eventually we are likely to end up with one pole ice free. (This has happened in the past.) Perhaps these SST maps are showing signs of this occuring. Graham Penzance Interesting thought, although surely in the interim this would have the opposite effect with the faster melting pole(s) in the summer months introducing colder waters and an increased -ve SST anamoly. Whereas in the winter the SST's would appear more +ve with less ice forming than of the past. In the north, I suspect that most of the melt is of sea-ice. This mel****er occupies areas that would normally be ice-covered and would still show as being warmer than normal. Perhaps the persistent negative anomaly in the SH is mainly due to melting of land ice? -- Graham Davis Bracknell |
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