Archive for the ‘wind’ Category

Paul Vaughan has suggested we hold a discussion on bi-decadal climatic variation, which exhibits quasi-cyclic patterns in various datasets. To get the ball rolling, Paul has kindly given some time to producing some very interesting plots which he has introduced across a few recent threads. This posts puts these in one place and acts as an invitation to those interested in a focussed discussion on the topic.

The Bidecadal Oscillation

Is it caused by the solar Hale Cycle as suggested by Tim Channon or is it caused by the velocity of the sun with respect to the solar system barycenter as suggested by Nicola Scafetta?

http://s18.postimg.org/74uty1eix/Bidecadal_SST_Sun_Velocity_Hale_Cycle.png

Bidecadal_SST_Sun_Velocity_Hale_Cycle
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Solved, wandering rocks

Posted: August 30, 2014 by tchannon in Uncategorized, wind

Spooky, the moving Death Valley rocks.

Image

Image Jon Sullivan, marked PD

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oldbrew:

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Looks like another example of the Al Gore effect…

Originally posted on Real Science:

In the 1950’s the US averaged about one major hurricane strike per year. Now we average zero per year.

ScreenHunter_2303 Aug. 25 10.28

HURDAT Re-analysis Chronological List of All Hurricanes

View original

All is fair in love and renewables

Posted: August 13, 2014 by Andrew in Energy, wind

imageIn any ecosystem, the survival of two similar carnivorous species depend on at least two fundamentals, food and space. If food is plentiful but space is at a premium, then conflict between the two species is inevitable. The same applies to always hungry and fast spreading renewable energy developers.

A wind farm developer Seagreen, and a solar farm developer Tealing Park Solar Ltd, are at war over a former WW2 RAF base.

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Scottish wind farm

Scottish wind farm


A few days ago the Talkshop highlighted the sacking of a Danish professor which appeared to be connected to his research and strong views on wind turbine noise.

Now this:
‘The Scottish government has commissioned a report into the health effects of wind farms at 10 sites across the country, following concerns that many people may be suffering from the effects of infrasound emitted from the turbines.’

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Propeller city [credit: BBC]

Propeller city [credit: BBC]

Breitbart London reports:

‘A Danish university has fired one of its professors who was critical of wind farms. Acoustics expert Henrik Møller, who is internationally recognised in his field, was ostensibly sacked because he did not generate enough revenue for the university, although some are questioning this explanation.’

Why are they questioning it?

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Time for a forecast [credit: Wikipedia]

Time for a forecast
[credit: Wikipedia]

The Alaska Dispatch News reported:

Predictions of Arctic summer ice melt come with lots of uncertainty

http://www.adn.com/article/20140801/predictions-arctic-summer-ice-melt-come-lots-uncertainty

(H/T GWPF Reports)

A few highlights:

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Paul’Vaughan posted a link to this plot on the tail end of a long running thread which has dropped off the front page now, so I thought I’s give it prominence today. It’s a ‘food for thought’ starter – the main course will be served as and when Paul has time.

Sun_Wind

It’s all coming together. Both Paul and I have been working on the sunspot integral over the last several years. Back in 2009 I found that by subtracting the average sunspot number at which the ocean neither gains nor loses energy from the monthly value and summing the running total, I could make use of the sunspot integral as a proxy for ocean heat content (OHC).

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Blackout_britain

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From RT.com

The UK risks sweeping electricity blackouts unless it increases the state’s capacity to balance infrequent supply from renewable energy sources, a prominent engineer who carried out government-funded research has warned.

While British authorities are under legal obligation to source almost a third of their electricity from renewable sources such as solar and wind by 2020, they require immediately deployable gas-fuelled power stations to cater for inevitable lulls in sun and wind energy output.

Hugh Sharman, a British engineering consultant, was commissioned to work on a government-sanctioned report examining how UK authorities could sustain the nation’s energy demands in an era of mandatory renewable energy use.

Tendered to the Department for Energy and Climate Change (DECC) last year, the research went unpublished.

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From New Scientist:

As sanctions deepen, just how crucial is Russian gas?
17:00 24 July 2014 by Jon Excell

Russian-bear-cartoonEurope gets around 30 per cent of its gas from Russia, but some countries are more dependent on it than others: the Czech Republic and Finland, for example, import at least 80 per cent of their gas from the country, while Germany, which has been treading particularly carefully in its dealings with Putin, imports around 36 per cent of its natural gas and 39 per cent of its oil from Russian suppliers.

The situation in the UK is less clear. Gas imports account for around 70 per cent of supply, but because of the complex European network of pipelines and interconnectors that we rely on, it’s difficult to say exactly how much of that imported gas is Russian. Some reports claim that Russia supplies around 15 per cent of that total and others put this figure much lower. Russian energy giant Gazprom estimates that it sends 11 to 12 billion cubic metres to the UK each year, out of an overall UK consumption of around 84 billion cubic metres.

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Matt Ridley article for the Times, reposted from the GWPF, because as many people as possible need to read it and think. Then act by using your vote sensibly.

ANOTHER RENEWABLE MYTH GOES UP IN SMOKE
Date: 28/07/14 Matt Ridley, The Times

wind-costsIf wood-burning power stations are less eco-friendly than coal, we are getting the search for clean energy all wrong
On Saturday my train was diverted by engineering works near Doncaster. We trundled past some shiny new freight wagons decorated with a slogan: “Drax — powering tomorrow: carrying sustainable biomass for cost-effective renewable power”. Serendipitously, I was at that moment reading a report by the chief scientist at the Department of Energy and Climate Change on the burning of wood in Yorkshire power stations such as Drax. And I was feeling vindicated.

A year ago I wrote in these pages that it made no sense for the consumer to subsidise the burning of American wood in place of coal, since wood produces more carbon dioxide for each kilowatt-hour of electricity. The forests being harvested would take four to ten decades to regrow, and this is the precise period over which we are supposed to expect dangerous global warming to emerge. It makes no sense to steal beetles’ lunch, transport it halfway round the world, burning diesel as you do so, and charge hard-pressed consumers double the price for the power it generates.

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Reblogged from Euan’s excellent site, Energy Matters.

“The Scottish Government’s targets are for renewable sources to generate the equivalent of 100 per cent of Scotland’s gross annual electricity consumption by 2020.” What will the consequences be for the Scottish People?

This post models Scottish electricity production and consumption in 2020 and compares this with 2012. It is assumed that Scotland’s two nuclear power stations remain operational in 2020. The reader is asked to always recall that the numbers are based on models and the conclusions therefore carry uncertainty. The consequences of this energy policy may be:

  • A large electricity surplus of about 15 TWh may be produced in 2020, worth about £2.5 billion at 17p / KWh.
  • There are currently many ideas but no certainty about where this surplus might go. It seems possible that a large part may simply be wasted.
  • Assuming that marine renewables remain negligible and hydro output remains unchanged in 2020 then the bulk of the expansion in renewables to meet the target will most likely be met by wind that will require a 5 fold increase relative to 2012.
  • In an independent Scotland the subsidy payments currently made to renewables companies by 63 million UK citizens would fall pro rata on the shoulders of 5.3 million Scottish citizens. This, combined with the 5 fold increase in wind capacity may mean a 25 fold increase in the level of renewable subsidy born by Scottish electricity consumers. Electricity bills may double.

In summary, the Scottish Government energy plan may result in a large electricity surplus that at present has nowhere to go, the number of wind turbines may increase 5 fold and electricity bills may double.

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turbine-failH/T to Glenties WiG for this Yachting Monthly report:

Wind turbine blaze scandal

Up to 120 wind turbines catch fire annually, according to the journal of Fire Safety Science. This is 10 times the number reported by the industry, The figures, compiled by engineers at Imperial College London and the University of Edinburgh, make fire the second-largest cause of accidents after blade failure.

The researchers claim that out of 200,000 turbines around the world, 117 fires take place annually, many more than the 12 reported by wind farm companies.

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Greenhouse effectsFollowing on from our recent debate on the likely extent of the greenhouse effect on Earth, this post will broaden the scope of discussion by allowing consideration of planetary surface temperatures on imaginary worlds. Tim Folkerts proposes a world at the distance from the Sun of our moon (i.e. the same average distance as Earth), with a twist on surface composition:

Konrad,

Just out of curiosity, if I put a ball of water — say a few km in diameter — in some sort of clear plastic baggie to keep it together and prevent evaporation in orbit around the sun @ 1 AU, are you claiming the water inside the baggie will be at least 80 C everywhere?

Or if I put a series of such plastic baggies on the moon to cover the entire surface with water 1 km deep that cannot evaporate, that the surface of the moon would be at or above 80 C everywhere (lets even limit the question to the “tropics” out to ~ 30 degrees N & S to avoid question about what happens at the poles)?

(We could even make the baggie slightly elastic to apply 1 Atm of pressure inward on the ball of water).

____________________________

Tim appears to have misunderstood what Konrad and I are telling him about the atmosphere being a cooling agent rather than a warming agent, and how pressure acts to slow the loss of energy from the oceans via the atmospheric suppression of evaporation and the increased density of a near surface atmosphere, which is not present on his toy planet.

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H/T to talkshop contributor Wayne for this short piece from the physics of sailing blog which tells us that near surface windspeeds have fallen over the last 30 years. However, the evidence in a presentation by Hartwig Volz on seawater emissivity I came across yesterday apparently contradicts this. I’ve becalmed-yachtadded a couple of the relevant plot’s from that below the short article, but do take a look at the whole pdf slideshow. The discussion of wind speed is highly relevant to the whole climate debate, including the fundamentals of ocean-atmosphere interaction, energy balance and surface warming. Recall that Hans Jelbring’s thesis was entitled ‘Wind Controlled Climate‘ . 

The Wind is Dying

Wind speed has significantly decreased in the 29 years from 1979 to 2008. In extreme cases, the wind decrease was a significant 15%. More specifically, the wind decreased at 73% of measuring stations which were 10 meters above the surface (about mast height for many smaller sailboats). The measurements were mostly from Europe, but also from the United States, China and Russia.

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Oh noes! H/T to Oldbrew for spotting this GWPF story culled from the Times:

josh-hammer-of-the-scots

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EU COURT ENDS SALMOND’S HOPES FOR GREEN SUBSIDIES
Date: 04/07/14 Peter Jones, The Times

Alex Salmond’s hopes that the economy of an independent Scotland could rely on expanding renewable energy generation have been crippled by a European Court of Justice ruling.

The court has said that no government must pay subsidies to renewable generators in another country. The ruling removes any legal foundation for the first minister’s claim that the rest of Britain would continue to pay a subsidy — more than £500 million a year — to Scottish renewable generators for their green energy.

Pro-Union sources said that the ruling could mean higher energy bills after a “yes” vote. It also leaves the future of the industry, if there is a “yes” vote, resting on the hope of a negotiated agreement between the Scottish and British governments, which Westminster has said is unlikely.

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Thanks to commenter ‘psc3113′ for finding the concluding part of HC Russells’ paper on a lunar 19 year cycle in drought records, taken from The Queenslander (Brisbane, Qld. : 1866 – 1939)  Saturday 4 July 1896. At the conclusion of the article, the probably cause of the 19 year cycle identified is elucidated.

Periodicity of Good and Bad Seasons
MR. H. C. RUSSELL’S THEORY.
(Continued from last Week.)

Hurricanes Come in Droughts.
I should like it to be clearly understood that I do not mean ordinary hurricanes, which are as much parts of ordinary weather conditions in some parts of the world as our southerly winds are here. What I mean are extraordinary hurricanes, those that come at long intervals to terrify mankind by their power for destruction. These are connected with droughts, and, therefore should be discussed here. I had long since observed that the connection between the two was obvious enough sometimes, and during the past year I was reminded of it very often by the frequent reports of heavy gales met with by ships coming to this port, indicating great atmospheric energy. Then on the 3rd January, 1803, came the hurricane over the Tongan group of islands, and not one of the vessels in the harbour rode out the storm; every one of them was wrecked in the harbour before morning, and the wind was of such exceptional violence that after it was over the islands looked as if they had been bombarded.

Then I turned to storms on this coast, some of which were of terrible violence. And as I write, the 28th ‘May, we have the report of a terrible cyclone in America, by which three of the States, Missouri, Illinois, and Indiana were damaged and the city of St. Louis wrecked. and 1300 people killed by falling buildings, and damage to property caused to the extent, estimated, of twenty million dollars; another fragment of the present D drought.

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H/T to Phill for this paper by H.C. Russell reproduced in The Queenslander (Brisbane, Qld. : 1866 – 1939) Saturday 27 June 1896

Periodicity of Good and Bad Seasons.
MR. H. C. RUSSELL’S THEORY.

hcrussell

The Nineteen Year Weather Cycle—Diagram Illustrating Mr. H. C. Russells Paper on ” The Periodicity of Seasons”

The paper lately read before the Royal Society of New South Wales by Mr. H.C. Russell, the Government Astronomer, a condensation of which has already appeared in the ” Queens lander,” has excited so much interest and so much discussion that no apology is needed for returning to the subject. With the view of affording our readers as full an insight as possible into the grounds upon which Mr. Russell has based his conversion to the theory of the nineteen-year cycle we reproduce the complete paper, as published in the ” Sydney Mail,” with the accompanying diagrams.

Mr. Russell said :— I feel some reluctance in coming for ward to-night with the result of my investigations into the periodicity of good and bad seasons—floods and droughts if you will—because they must come to you as a surprise, and they will make a claim on your confidence which at first sight you will probably not be disposed to grant. For myself, I know that some years ago, if anyone had come to me, stating that it was possible to forecast the seasons many years in advance, I should have received the statement with incredulity, and an inclination to think lightly of the man who advanced such views.’

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I’m of the opinion that before getting into the complexity of numerical modelling, it’s wise to put considerable effort into trying to understand the physical processes at work in the climate system, and the origins of the energy flows that drive them. David Evans’ recent series of posts over at Jo Nova’s site have generated a lot of interesting discussion (despite being roundly ignored by Anthony Watts at WUWT), and I think we can shed some light on the ‘mysterious 11yr lag’ between solar input and climate response.

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Arctic sea ice [image credit: BBC/Getty Images]

Arctic sea ice [image credit: BBC/Getty Images]

The dynamics of ocean waves in polar regions give us important clues about the behaviour of sea ice in those areas, according to researchers.

“The ice floes bend with the waves, and over time you can imagine that this creates fatigue and eventually the ice will fracture. Interestingly, the fractures tend to be perpendicular to the direction of the waves, and to be of even widths.”

Re the Arctic, a related BBC report notes ‘that wave heights are going to change with increasing distance from the ice edge to the land, and that could have more of an impact on ice break-up.’

Could that suggest a ‘feedback effect': greater distance to land = more ice break-up etc.?

BBC report: Ocean waves influence polar ice extent

Research letter:
Storm-induced sea-ice breakup and the implications for ice extent