Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

IronLionZion

(45,442 posts)
40. "This is not a monkey court" but there are some roots in truth
Wed Apr 16, 2014, 01:43 PM
Apr 2014
Wind turbines extract kinetic energy from the air around them, and since less energy makes for weaker winds, turbines do indeed make it less windy. Technically speaking, the climate zone right behind a turbine (or behind all the turbines on a wind farm) experiences what's called a "wind speed vacuum," or a "momentum deficit." In other words, the air slows down.

The effect has implications for wind-farm efficiency. Upwind turbines in a densely packed farm may weaken the breeze before it reaches the downwind ones. It could even have a more general impact. If wind farms were constructed on a truly massive scale, their cumulative momentum deficit could conceivably alter wind speeds on a global scale (though how winds would change is complex—they'd likely slow in places and speed up in others).

Wind farms can also affect the local temperature. According to Somnath Baidya Roy, an atmospheric scientist at the University of Illinois, as a breeze passes over a wind farm, the turbines create an atmospheric wake where wind speeds drop and turbulence increases. The rotors spawn a set of eddies that mix air from above with air from below. The eddies can lift cool air and sink warm air or vice-versa. That turbulence could raise or lower local temperatures. In a paper published in 2012, one group of researchers studied areas over several wind farms in Texas and found that local surface temperatures had risen by a small but significant amount.

http://www.popsci.com/science/article/2013-05/fyi-do-wind-farms-make-it-less-windy





“We found that when wind turbines are present, they slow down the outer rotation winds of a hurricane,” Jacobson said. “This feeds back to decrease wave height, which reduces movement of air toward the center of the hurricane, increasing the central pressure, which in turn slows the winds of the entire hurricane and dissipates it faster.”

The researchers found that 78,286 large wind turbines arrayed off the coast of New Orleans would have dropped Hurricane Katrina’s wind speeds by 81 miles per hour, and reduced storm surge by up to 71 percent. Covering most of the Gulf Coast with wind turbines (meaning over half a million individual turbines) slowed down a modeled Katrina even more (wind speeds by 90 mph and storm surge by 79 percent). The same area covered by half as many turbines would still cut storm surge by 63 percent. Hurricane Isaac would have lost up to 60 percent of its storm surge and 57 mph of wind speed. Their model of Hurricane Sandy found that 112,014 offshore turbines would cut wind speed by 80 mph and drop storm surge by 21 percent.

The purpose of a wind turbine is to transmit kinetic energy from wind into electrical energy used to power homes and businesses. The wind that comes out the backside of a wind farm has less energy than it did when it entered the array. And a recent study found that wind farms, even on a huge scale, do not affect the climate as some have claimed. And Archer and Jacobson said in 2012 that 4 million turbines spread around the world could generate half the world’s energy needs without interfering with atmospheric circulation too much.

http://thinkprogress.org/climate/2014/02/26/3332521/offshore-wind-turbines-slow-hurricanes/


Joe Barton is an idiot for many reasons. But not because of this. The energy comes from somewhere, which reduces the energy somewhere else. There are consequences to everything.

There was no image when I first viewed the thread. I see it now. Don't know why it did not show up lostincalifornia Apr 2014 #1
What "substance" are you looking for? Ohio Joe Apr 2014 #4
Post removed Post removed Apr 2014 #10
This message was self-deleted by its author lostincalifornia Apr 2014 #49
When I saw the post there was no body in the message, now it has something lostincalifornia Apr 2014 #46
ahhh... I have seen posts where the pics do not show up... My apologies... Ohio Joe Apr 2014 #51
No problem. I was only trying to tell the OP that I didn't see any content. I should have just lostincalifornia Apr 2014 #53
That just happened to me on this post too. JimDandy Apr 2014 #96
Interesting lostincalifornia Apr 2014 #97
He is half right, remember the conservation of Energy happyslug Apr 2014 #89
Everything you need to have a discussion is in the OP. Rex Apr 2014 #44
Well, he might. GoneOffShore Apr 2014 #47
For one reason or another the image did not show on my computer. But please,pile on. Assume the lostincalifornia Apr 2014 #52
I would say "welcome to DU", but you've been here, so you should know what to expect. 7962 Apr 2014 #80
or worse JackInGreen Apr 2014 #83
Ok, I'm over it lostincalifornia Apr 2014 #91
Thanks, I am not falling apart lostincalifornia Apr 2014 #90
Yep, and some days on DU it's RKP5637 Apr 2014 #101
If the population of China were to all fart at the same time... nikto Apr 2014 #82
Only if everyone was sulphurdunn Apr 2014 #85
Only if they ignited them. HubertHeaver Apr 2014 #100
Sounds like a new doomsday weapon nikto Apr 2014 #107
It made complete sense to me. notadmblnd Apr 2014 #54
That is because I did not see the embedded image when I first looked at the OP. I see it now though lostincalifornia Apr 2014 #55
It did not show up for me initially, either. I had to wait for the image to load. A DU glitch? freshwest Apr 2014 #105
Jesus on a pogo stick, where do these buffoons come from? The Velveteen Ocelot Apr 2014 #2
Barton's rambling full-length comment is absurd. And he has a degree in industrial engineering. John1956PA Apr 2014 #8
A degree in industrial engineering? From what university? Aristus Apr 2014 #17
Neander U, home of the clubbin' Cromags Scootaloo Apr 2014 #28
... Aristus Apr 2014 #34
Agreed Iwillnevergiveup Apr 2014 #98
Do you suggest GeoWilliam750 Apr 2014 #73
Bizarrely NewJeffCT Apr 2014 #75
I have known some people with MBAs that were utter idiots. Thor_MN Apr 2014 #84
Now I get it! VA_Jill Apr 2014 #20
Let me give you an advice Hutzpa Apr 2014 #24
So rickyhall Apr 2014 #29
In all fairness, it was his much more recent experience of working with monkeys that influenced his okaawhatever Apr 2014 #37
Bonzo did his best to educate Reagan about politics, but I can't see he was successful. NT Jerry442 Apr 2014 #39
Perhaps he got treated by Faith Healers for his heart attack and diabetes. nt Bernardo de La Paz Apr 2014 #72
I think being a buffoon is a lifestyle choice rurallib Apr 2014 #11
Oil interests are paying big money for that buffoon siligut Apr 2014 #67
Where do they come from - Surprise!!! - From Texas dem in texas Apr 2014 #38
You do realize he is correct, right? philosslayer Apr 2014 #41
Philoslayer, are you saying Barton is correct? irisblue Apr 2014 #56
See Post #40 philosslayer Apr 2014 #63
No, he isn't. Wind is not a finite resource. The Velveteen Ocelot Apr 2014 #71
Infinitesimally correct, but why play the oligarchy's profit-centric game for them? Bernardo de La Paz Apr 2014 #78
I don't for a gottafly Apr 2014 #70
And harnessing solar energy would confiscate radiation? Zambero Apr 2014 #3
Good grief, don't give him and more hairbrained ideas!! n/t Stonepounder Apr 2014 #14
The uninformed voting for the uninformed Rider3 Apr 2014 #5
Another idiot that Texas has inflicted on the nation. TexasTowelie Apr 2014 #6
The scary thing is, he actually sounds smart compared to some of the Texas Delegation. Fuddnik Apr 2014 #26
Can't help but notice ... Cheviteau Apr 2014 #36
Isn't he the one.... cynzke Apr 2014 #66
Yes, he did apologize to BP. TexasTowelie Apr 2014 #87
And said that it was the responsibility of the taxpayers to clean up and cover BP's loses. DhhD Apr 2014 #92
It's very discouraging that people like this are at the highest ... dawg Apr 2014 #7
It's embarrassing is what it is. giftedgirl77 Apr 2014 #13
I live in a fairly republican area Cosmocat Apr 2014 #50
OMG Tsiyu Apr 2014 #9
Aynd huk't awn fonix, two! riqster Apr 2014 #16
Did any other member of the committee give him an argument at the time? Demoiselle Apr 2014 #12
Are you assuming that committe members who were not in front of a camera were: merrily Apr 2014 #23
I think every politician should be tested to be a licensed politician .... MindMover Apr 2014 #15
"WHY NOT POLITICIANS..." merrily Apr 2014 #25
Gee, why didn't we put up those wind slowing thingies long ago? merrily Apr 2014 #18
Is this the same morAn that said the Internet is a bunch of tubes? MoonRiver Apr 2014 #19
Not that I can remember Hutzpa Apr 2014 #22
Yes, the quote is from Alaska Senator Ted Stevens..... A HERETIC I AM Apr 2014 #30
Thanks Hutzpa Apr 2014 #33
Ted Stevens! MoonRiver Apr 2014 #31
As we evolve Hutzpa Apr 2014 #21
It's scary that anyone would believe this bullshit.. Even scarier that people voted for this idiot. The CCC Apr 2014 #27
Welcome to DU, The CCC! calimary Apr 2014 #86
It should be noted that Barton said that almost 5 years ago. A HERETIC I AM Apr 2014 #32
he was still wrong in 2009. nt irisblue Apr 2014 #57
He got more than his fair share of Neandertal genes. ErikJ Apr 2014 #35
"This is not a monkey court" but there are some roots in truth IronLionZion Apr 2014 #40
And a butterfly can begin a hurricane. But wind is NOT a finite resource and ErikJ Apr 2014 #43
Great stats, food for thought, thanks. toby jo Apr 2014 #48
The more energy sources the cheaper it gets, supply and demand. ErikJ Apr 2014 #58
They control the supply, and they don't want anything to reduce demand IronLionZion Apr 2014 #61
So the problem with the statement sunnystarr Apr 2014 #111
The global effects are probably negligible, but the local effects are probably significant IronLionZion Apr 2014 #113
This thread is a bit embarrassing.... philosslayer Apr 2014 #42
Online forums can be embarassing IronLionZion Apr 2014 #60
It's embarrassing to those who stand on one technicality and miss the boat. Bernardo de La Paz Apr 2014 #77
+1 nt F4lconF16 Apr 2014 #88
Its a bit more local IronLionZion Apr 2014 #95
Hank Johnson has some competition now. egduj Apr 2014 #45
I'll bet Joe Barton is full of enough hot air to provide plenty of energy. mountain grammy Apr 2014 #59
Let me guess, this same asshat denies climate change and thinks oil will last forever. liberal N proud Apr 2014 #62
Exactly. AverageJoe90 Apr 2014 #74
That's nothing npk Apr 2014 #64
Looks like someone failed Science class Mrdrboi Apr 2014 #65
yes I believe it. krakfiend Apr 2014 #68
E-40 should tell him when to go, Jamaal510 Apr 2014 #69
I thought this was bull pucky until I did a little research..... Swede Atlanta Apr 2014 #76
Hmmm. stage left Apr 2014 #79
In his case intelligence is a finite resource. YOHABLO Apr 2014 #81
fire in the hole father founding Apr 2014 #93
thanks for reminding me about this particular tidbit of utter stupidity. certainly niyad Apr 2014 #94
So Barton admits human actions can change the temperature of the Earth? n/t JoeyT Apr 2014 #99
As an American average citzen of average age fairly well read and educated, raised with enough bkanderson76 Apr 2014 #102
Holy shit. That clown must ingest a lot of cocktails to come up with such ridiculous material. nt valerief Apr 2014 #103
Texas fundies LOVE Joe Barton mississippi62 Apr 2014 #104
It's called brainwashing... n/t doxydad Apr 2014 #108
After listening to this panel discussion, I'm on the fence with this... yawnmaster Apr 2014 #106
Texas wind energy has proved him wrong. mc51tc Apr 2014 #109
OMg~~ yuiyoshida Apr 2014 #110
Wind Mills!! bleedinglib Apr 2014 #112
Republican Sen., TX Joe Barton, must be one of the smarter Republican Senators vkkv Apr 2014 #114
Latest Discussions»General Discussion»It's scary that anyone wo...»Reply #40