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Arctic/Antarctic, Bob Tisdale, Climate Science, General Topics, National Grid, Oceans, These items caught my eye, UK Weather

These items caught my eye – 15 April 2013

Each week, I’ll pull together a range of items that have attracted my attention. I hope you will find the variety of topics covered both interesting and enlightening. If you follow a site that is, maybe, a bit off the beaten track and think it would be of interest, please contact me and I’ll take a look.

A Big Picture Look At “Earth’s Temperature” – “The Pause” Update

Posted on April 14, 2013 by justthefactswuwt
By WUWT regular “Just The Facts”

Recently there has been significant attention focused on “The Pause” in Earth’s warming, the length of “The Pause” and where “Earth’s Temperature” may go from here, e.g.:

  • “Over the past 15 years air temperatures at the Earth’s surface have been flat while greenhouse-gas emissions have continued to soar.” The Economist
  • “Global warming stopped 16 years ago, reveals Met Office report quietly released… and here is the chart to prove it.” Daily Mail
  • ”Twenty-year hiatus in rising temperatures has climate scientists puzzled.” The Australian
  • “Has the rise in temperatures ‘paused’?” Guardian
  • “On Tuesday, news finally broke of a revised Met Office ‘decadal forecast’, which not only acknowledges the pause, but predicts it will continue at least until 2017.”Daily Mail
  • “RSS global satellite temperatures confirm hiatus of global warming, while the general public and mainstream press are now recognizing the AWOL truth that skeptics long ago identified…global temperatures are trending towards cooling, not accelerating higher.” C3 Headlines.

Click here to read the full article

Maryland’s “Wind Powered Welfare”

Posted on March 12, 2013 by David Middleton

Offshore wind is, by far, the most expensive source of electricity. An offshore wind farm would have to receive 34¢/kWh, wholesale, just to break even over a typical 30-yr plant lifetime. 34¢/kWh is almost three times the average retail residential electricity rate in the U.S.

Maryland’s “Wind Powered Welfare”

The much ballyhooed Cape Wind project, off Cape Cod, is projected to have a 454 MW installed capacity. It will cost approximately $2.5 billion to build. This works out to $5,506,608 per MW. A natural gas plant generally costs less than $900,000 per MW.

Cape Wind currently has a long-term contract to sell half its output for 18.7¢/kWh. The average U.S. residential rate is in the neighborhood of 12¢/kWh.

Maryland has come up with a novel solution to make offshore wind more affordable to consumers…

Click here to read the full article

Is The UK Grid Approaching Instability?

Posted on 14 April, 2013 by Chiefio

I was looking at the “Dashboard” for the UK electrical grid here:


Zooming in on detail usage of Nuke vs Coal vs Gas vs Wind, It looks to me like the UK wind farm total is approaching the point where the UK grid destabilizes. It looks, to me, like at most a “double” of wind (ether farm size, or a smaller increase in peak wind speed where ‘drag’ goes as the cube of velocity, so energy ought to ramp up at some significant power function) and there is just not enough “fast response” capacity to absorb the shocks. There isn’t any indication, really, that this is a ‘typical’ chart, so we might already be past that point if other samples are even more extreme.

UK Gridwatch

Click here to read the full article

A Different Perspective of the Equatorial Pacific and ENSO Events

Posted on April 14, 2013 by Bob Tisdale

It’s difficult to express how enormous El Niño and La Niña events are. Often, when discussing them, I’ll display a map of the tropical Pacific (see example here) and write something to the effect of, the equatorial Pacific or the tropical Pacific stretches almost half way around the globe. But that really doesn’t show up very well with a map.

I was cleaning out a catch-all drawer in my desk recently and happened on a protractor. (I even have a pocket calculator and a slide rule in there. No abacus, though.) It occurred to me that maybe a graduated half-circle would help to put the equatorial Pacific and El Niño-Southern Oscillation (ENSO) events into perspective for some readers.

To create Figure 1, I borrowed the image of a protractor from a website, started the longitudes with 110E to the left and ended with 70W to the right, and added a couple of blobs to indicate Indonesia in the west and South America in the east. If we consider this a partial cross-section, we’re looking north. I’ve also identified the longitudes for the region used in the Cold Tongue Index (180-90W) and the longitudes I typically present for the western equatorial Pacific (120E-165E). The sea surface temperature anomalies for the Cold Tongue Region (known as the Cold Tongue Index) are a commonly used index for the strength, timing and duration of El Niño and La Niña events. I used the Cold Tongue Index for this post in place of the more commonly used NINO3.4 sea surface temperature anomalies because, as you can see, the Cold Tongue Region stretches ¼ of the way around the globe. The longitudes for the western equatorial Pacific stretch half that—or 1/8 of the length of the equator.

A Different Perspective of the Equatorial Pacific and ENSO Events

Click here to read the full article

Sea Ice Update! Nearly 400,000 sq Miles Above the Mean. And An Arctic Comparison To Last Year

Posted on April 14, 2013 by suyts space

Forget comparing it to how many Manhattans that is. It’s more than seven times the size of the state of New York!

Click here to read the full article

Roger Andrews: A New Climate Index – The Northern Multidecadal Oscillation

Posted on April 15, 2013 by tallbloke

My thanks to Roger Andrews, who sent me this guest post a little while ago and has been very patiently waiting for me to publish it. . .

Roger Andrews – March 28 2013

It’s widely recognized that weather and climate are strongly influenced by the Atlantic Multidecadal Oscillation (AMO) in and around the North Atlantic Ocean and by the Pacific Decadal Oscillation (PDO) in and around the North Pacific Ocean, if not globally. But as illustrated below the AMO and the PDO show quite different trends, giving the impression that North Atlantic and North Pacific ocean cycles march to the beat of a different drummer:


But in fact they don’t.

Click here to read the full article



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