Tuesday, December 31, 2013

Is Fusion Possible?


The Z-Machine.  Sandia National Labs.

Scientists at Sandia National Labs report significant progress in their quest to achieve ignition in nuclear fusion.  How great would that be if they can actually get it to work?

Read on for further details.

Fusion article - Scientific American & Nature

Monday, December 23, 2013

Snow in the 'Terra Sancta'

Now that the marking period is over I've been catching up on my backlogged science reading...


Snow at the Wailing Wall; Jerusalem.
Image courtesy - Washington Post.

You may remember in the news about 1.5 weeks ago, that parts of the Holy Land were literally buried in snow, a lot of snow.  While some very limited higher elevation areas of the Holy Land usually see a bit of snow each winter, it's usually not nearly this much!

Here's the link to an awesome satellite image of the 'Terra Sancta' and the snow.

NASA Earth Observatory

Image and article courtesy of NASA.

Here's a link to a related article on Weather Underground.
http://www.wunderground.com/blog/weatherhistorian/comment.html?entrynum=224

Saturday, December 14, 2013

Powder River Basin



Wyoming's Powder River Basin is the richest coal deposit on the planet.  Scientific American had an excellent article on it a few days ago.

http://www.scientificamerican.com/article.cfm?id=powder-rive-basin-coal-on-the-move

Monday, December 9, 2013

Early Season East Coast Snow

Where's the football?

Thanks to WeatherUnderground.com for the below article.  Pretty extreme conditions for a number of NFL games yesterday.

By: Dr. Jeff Masters, 3:42 PM GMT on December 09, 2013+42
The calendar says we’re still a month and a half away from the peak of winter, but the winter weather gripping most of the U.S. is more typical of mid-January, as a significant outbreak of Arctic air continues to bring temperatures 10 - 30 degrees below normal to much of the nation. Following last Friday’s major winter storm that brought heavy snows and significant icing from Texas to Maine (“Cleon”), a new winter storm dubbed “Dion” followed a similar track on Sunday. The storm brought the first snow of winter to Washington D.C., New York City, and Philadelphia (the average date of the first measurable snow ranges from Dec. 14 in Baltimore to Dec. 18 in Philadelphia and Washington.) The 8.6” of snow that fell on Philadelphia surpassed the snowfall total for the entire 2012-2013 season (8.3”.) Snow and blowing snow hit four NFL games on Sunday—Lions at Eagles, Vikings at Ravens, Chiefs at Redskins, and Dolphins at Steelers—so obscuring the yard markers, that it was almost impossible for fans to tell exactly where the ball was at all four stadiums. The snow caused multiple traffic accidents that shut portions of I-95 in Philadelphia, and all planes were grounded at the airport during the afternoon. Farther west in Pennsylvania, heavy snow caused a 56-car pile up on the westbound lanes of the Pennsylvania Turnpike from Downingtown to Morgantown, after a motorist got out of his car after a minor accident and was hit and killed. One other person was injured. I-78 in Pennsylvania was also closed by traffic accidents on Sunday. More that 1/4” of ice accumulated due to freezing rains in portions of Kentucky, Tennessee, Virginia, Maryland, and West Virginia.


Figure 1. Pregame festivities at Sunday’s Lions-Eagles game in Philadelphia looked like a scene out of “Frozen.” Image credit: CNBC's Jim Cramer (@jimcramer)

Severe cold wave due to an unusually extreme jet stream kink
As we’ve so many times over the past few years, the jet stream is stuck in an unusually wavy configuration that is bringing remarkable hot and cold weather extremes to the entire continent. A sharp trough of low pressure over the center of North America is allowing frigid Arctic air to barrel unusually far south, setting hundreds of daily records over the past few days. Temperatures in Northern Montana were as much as 50 degrees below normal, and in portions of Oregon, the cold blast brought the coldest temperatures since 1972. One station even set an all-time cold record: Lakeview, Oregon hit -27° on December 8, breaking the old all-time cold record of -24° set on Jan. 15, 1888. Temperature records there began in 1884.

Unusually extreme ridges of high pressure set up over Alaska and the Southeast United States to compensate for the big dip in the jet stream over the center of North America. One ridge of high pressure pushed to the north of Alaska and over the Arctic Ocean, allowing warm Pacific air to bring rain and temperatures in the upper 30s to Alaska’s North Slope on Sunday—an unprecedented occurrence in December. Keep in mind that this is an area that has been in perpetual 24-hour darkness for several weeks. According to wunderground’s weather historian Christopher C. Burt, it appears that Sunday’s 39° at Deadhorse (Prudhoe Bay) is the warmest December temperature ever measured at any site on the Alaskan Arctic Ocean shoreline region. Weather records for Alaska’s North Slope go back as far as 1921 at Point Barrow. A very sharp ridge of high pressure also set up over the Southeast U.S.—Tallahasse, Florida hit 84° on Saturday, matching their highest temperature ever recorded in the month of December.


Figure 2. Jet stream winds over North America on Sunday, December 8, showed a sharp trough of low pressure over the center of the continent, allowing cold Arctic air to spill southwards into the U.S. Sharp ridges of high pressure were over Alaska and the Southeast U.S.

Jeff Masters

Tuesday, December 3, 2013

Fracking and Sand

The article below appeared in today's Wall Street Journal.


In Fracking, Sand Is the New Gold
Energy Boom Fuels Demand for Key Ingredient Used in Drilling Wells; 100 Sand Mines in Wisconsin

By
ALISON SIDER and
KRISTIN JONES CONNECT
Dec. 2, 2013 7:49 p.m. ET

The race to drill for oil in the U.S. is creating another boom—in sand, a key ingredient in fracking.

Sand for Fracking Causes Safety Dust-Up
View Slideshow

A conveyor at a Pattison Sand Co. mining operation in Iowa. Stephen Mally for The Wall Street Journal
More photos and interactive graphics

Energy companies are expected to use 56.3 billion pounds of sand this year, blasting it down oil and natural gas wells to help crack rocks and allow fuel to flow out. Sand use has increased 25% since 2011, according to the consulting firm PacWest, which expects a further 20% rise over the next two years.

In Wisconsin, the source of white sand perfectly suited for hydraulic fracturing, state officials now estimate more than 100 sand mines, loading, and processing facilities have received permits, up from just five sand mines and five processing plants operating in 2010.

And the stocks of publicly traded companies that deal in sand have soared. Shares of Houston-based Hi-Crush Partners HCLP +3.90% LP have jumped 59% since it began trading in August 2012. Shares of U.S. Silica Holdings Inc., SLCA -0.99% based in Frederick, Md., have doubled since it went public in 2012, giving it a stock market value of $1.9 billion.

Less than a decade ago, U.S. Silica focused on sand for industrial and consumer products—plate glass for windows and, more recently, glass for iPhone and iPad screens. Now those uses account for just half the sand the company digs out of its open pits and even less of revenue.

Related
Sand Miner Under Scrutiny

During the first nine months of this year, the more than $245 million in sand sold to energy companies accounted for 62% of U.S. Silica's sales, up from 53% during the same period in 2012 and 33% during the first nine months of 2011.

Hydraulic fracturing is the process of pumping a mixture of sand, chemicals and water down a well at high pressure to break up dense rock formations so that oil and gas can flow to the surface. The sand left behind in the fracking process props open those tiny pathways so trapped fossil fuels can escape.

Railroad operators are carrying boxcars filled with sand to shale fields including the Permian Basin of West Texas and New Mexico, the Bakken formation of North Dakota and the Marcellus Shale of Pennsylvania.

While some of these places might seem to have plenty of sand of their own available, many fracking outfits prefer Wisconsin white sand, which is bigger and has rounder grains better suited for holding open larger pathways.

Union Pacific Railroad shipped 94,000 railcars of frack sand in the first half of the year—a 20% increase over the same period of 2012.

Canadian National Railway Co. is spending $68 million over three years to upgrade and restore more than 100 miles of track in Wisconsin so it can boost sand shipments out of state.

U.S. Silica and BNSF Railroad are building a sand distribution hub south of San Antonio, at the edge of the oil-rich Eagle Ford shale. U.S. Silica will ship more than 1 billion pounds of sand each year there from Ottawa, Ill., 85 miles southwest of Chicago, and Sparta, Wis., about 250 miles to the north.

"It takes 25 railcars of sand, on average, to frack one well," said Bryan Shinn, U.S. Silica's chief executive.

Companies are starting to experiment with using even more sand. Pumping 8 million pounds of sand into a well instead of the more typical 4 million pounds could add around $600,000 to the cost of an oil well, but in some cases can double its output, said Wells Fargo analyst Matt Conlan.

Demand for sand was so high last year that prices hit an average $75 per metric ton. The new mining boom in Wisconsin has helped push those prices back to about $50 at the mine, according to PacWest.

Oil-service companies that fracture wells mark up the sand and add transportation costs to the final bill, which can triple the price of sand paid by operators.

That has shale-oil producers like EOG Resources Inc. getting deeper into sand as a way to keep its costs per well in check. At the end of 2011, the company opened a plant in Chippewa Falls, Wis., about 100 miles east of Minneapolis, Minn., to process sand from mines it operates.

Prepping sand to be used in fracking involves sifting it for the right-sized crystals, separating out contaminates, washing it and drying it.

But the sand boom is creating worries about worker safety as well as local opposition over the clouds of airborne dust from heavy-duty trucks hauling the sand from mines to processing plants and rail depots. Pattison Sand Co. in Clayton, Iowa, has faced particular scrutiny.

The U.S. Centers for Disease Control and Prevention calls the fine granules unleashed from sand mining respirable crystalline silica—or silica dust—and says it is linked to silicosis and lung cancer.

"There's a tendency to say it's just dust and people have always been exposed to dust," said David Kriebel, an epidemiologist at the University of Massachusetts. "Crystalline silica is an extremely hazardous substance. Every little piece of crystalline silica that reaches the lungs causes scarring."

In Trempealeau County, Wis., where a number of new sand mines have opened, officials recently imposed a one-year ban on issuing new permits.

"We were looking at hundreds of permits being taken out, dozens of proposed mines that could become operational within a year," said Sally Miller, a member of the county's board of supervisors. "I didn't want us to be 20 years from now saying we wish we had known."

Even so, some state lawmakers worry a much needed job-creating sector is under threat, and hope to shift regulatory control to the state.

"We've always paid out to the oil producing states," said Sen. Tom Tiffany, a Republican. "To have the oil producing states pay us for our natural resources is really a good thing."