EARTH....

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bradman
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Re: EARTH....

Post by bradman »

Ya got me wondering. i tried it a few ways. "climate change," jet stream," "weather patterns," "extreme storms." and how they effect air travel? i got nothing so far. Closest i could come was this...

https://skybrary.aero/articles/jet-stream
Rapidly moving weather systems making forecasting of location and strength of Jet Streams less accurate.
Delayed departure such that the flight/fuel plan are optimised for wind patterns which have since changed.
Solutions
When flying in an area of forecast CAT, the crew should err on the safe side and keep the passenger seat belt sign illuminated. This may of course disrupt the cabin service and cause distress to passengers so the seat belt sign should not be left on unnecessarily.
If encountering unexpectedly strong headwinds:
Record ground speed and fuel burn and try flying 2,000 ft and 4,000 ft lower. Compare the ground speed and fuel burn at those levels and fly at the level which gives the best specific ground range (the lowest kg/nm figure).
Seek information from aircraft ahead and to the north and south of your planned track to find out what winds they are experiencing and consider adjusting your route to avoid the high winds.
When you are eventually free of the strong headwinds, consider flying long range cruise/fuel economy speed and profile to conserve fuel.
Start contingency planning for an intermediate fuel stop.
Consider the consequences of the longer flight time e.g. destination weather forecast, opening times, crew duty times etc.
Related Articles
Rossby Waves
Turbulence
Tropical Revolving Storm
Clear Air Turbulence (CAT)
Further Reading
B741, en-route, Pacific Ocean, 1997 - on 28th December 1997, a B747, operated by United Airlines, encountered severe turbulence thought to have been associated with a Jet Stream over the Pacific Ocean. Several passengers and crew members sustained serious injuries and one passenger was killed. For further information, see NTSB Final Report DCA98MA015
Bureau d’Enquêtes et d’Analyses (BEA) Incidents in Air Transport No 5 - Wind Gradients and Turbulence
Meteorological Office; Handbook of Aviation Meteorology, 3rd Edition, HMSO London, 1994.
With weather patterns getting more volatile it makes sense air travel will get a bit more interesting. Makes me wonder if they are planning and training for it.
I am not a member of any organized political party. I am a Democrat. [Will Rogers]
ap215
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Re: EARTH....

Post by ap215 »

Texas child dies after being left in hot car, the sixth such death this year

A 5-year-old boy died inside of a hot car in Harris County, Texas, on Monday, making him the sixth child this year to succumb to the dangerous effects of heat while trapped in a vehicle.

The Houston-area boy was accidentally left in the car for several hours as the family prepared to celebrate the birthday of his 8-year-old sister, KWTX reported. After returning from a shopping trip with her daughter and son, the mother of the boy assumed both kids had exited the car on their own, but the boy remained in the vehicle.

https://www.accuweather.com/en/weather- ... ar/1205661
Motor City
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Re: EARTH....

Post by Motor City »

Afghanistan quake kills 1,000 people, deadliest in decades
A powerful earthquake struck a rugged, mountainous region of eastern Afghanistan early Wednesday, flattening stone and mud-brick homes and killing at least 1,000 people. The disaster posed a new test for Afghanistan’s Taliban rulers and relief agencies already struggling with the country’s multiple humanitarian crises.

The quake was Afghanistan’s deadliest in two decades, and officials said the toll could rise. An estimated 1,500 others were reported injured, the state-run news agency said.

The disaster inflicted by the 6.1-magnitude quake heaps more misery on a country where millions face increasing hunger and poverty and the health system has been crumbling since the Taliban retook power nearly 10 months ago amid the U.S. and NATO withdrawal. The takeover led to a cutoff of vital international financing, and most of the world has shunned the Taliban government......
The sanction policy is leveraging itself in harmony with natural disaster to deprive humanitarian aid. Maybe so more money will be available to business contractors and militarization.
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ap215
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Re: EARTH....

Post by ap215 »

Lightning strike in Southern California kills woman and dogs

PICO RIVERA, Calif. -- A woman and her dogs were killed by a lightning strike while out walking in Southern California Wednesday morning, officials say.

Paramedics and police were called near the San Gabriel River in Pico Rivera around 8:50 a.m.

https://abc30.com/southern-california-l ... /11987925/
ap215
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Re: EARTH....

Post by ap215 »

Nearly 30,000 without power as strong storms roll through Northern Virginia

Strong thunderstorms with wind gusts up to 80 mph toppled trees and power lines Wednesday evening, knocking out power to more than 30,000 customers across Northern Virginia, including about 16,000 in Fauquier County.

https://abc30.com/southern-california-l ... /11987925/
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ZoWie
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Re: EARTH....

Post by ZoWie »

Motor City wrote: Mon Jun 20, 2022 11:20 pm Happy Summer Solstice longest day of the year closest we get to the sun
The solstice is the longest day of the year, and the northernmost point of where the sun is directly overhead at local zenith, which also defines the tropic for that hemisphere.

The minimum distance from Earth to the sun is actually in Northern Hemisphere winter. It's called perihelion. The date varies, but is typically sometime in January. The Earth's orbit is slightly elliptical, just enough to make a very slight difference in Northern vs Southern Hemisphere seasons.

The eccentricity also skews the local times of sunrise and sunset, to the point where the latest sunset in the US is usually around the 4th of July and the latest sunrise is around New Year's.

Unless you're in the tropics, the solstice will represent the longest period of daylight you're going to get, and the day the earth's tilt for all practical purposes puts your position closest to the sun. In the tropics, it varies, and on the equator the longest days are actually the equinoxes.
"We must remember that we cannot abandon the truth and remain a free nation." --Liz Cheney, Republican, 7/21/22
Motor City
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Re: EARTH....

Post by Motor City »

ZoWie wrote: Thu Jun 23, 2022 5:05 pm The solstice is the longest day of the year, and the northernmost point of where the sun is directly overhead at local zenith, which also defines the tropic for that hemisphere.

The minimum distance from Earth to the sun is actually in Northern Hemisphere winter. It's called perihelion. The date varies, but is typically sometime in January. The Earth's orbit is slightly elliptical, just enough to make a very slight difference in Northern vs Southern Hemisphere seasons.

The eccentricity also skews the local times of sunrise and sunset, to the point where the latest sunset in the US is usually around the 4th of July and the latest sunrise is around New Year's.

Unless you're in the tropics, the solstice will represent the longest period of daylight you're going to get, and the day the earth's tilt for all practical purposes puts your position closest to the sun. In the tropics, it varies, and on the equator the longest days are actually the equinoxes.
Oh yea my mistake
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ap215
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Re: EARTH....

Post by ap215 »

Gov. Pritzker signs green energy bill Wednesday morning, making Illinois a ‘force for good’ in climate change fight

CHICAGO (WMBD) — Illinois Gov. J.B. Pritzker signed a massive clean energy omnibus package passed by the Illinois Senate Monday.

Under the Climate and Equitable Jobs Act (Senate Bill 2408), one million electric vehicles would be on Illinois’ roads over the next nine years, and Illinois would move to 100% clean energy by 2050. It will close private, for-profit coal plants with an electrical capacity of over 25 megawatts by 2030 as well as municipal coal-fired power plants and gas-fired power plants by 2045.

https://www.centralillinoisproud.com/ne ... y-morning/
ap215
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Re: EARTH....

Post by ap215 »

Supreme Court reins in Biden's power on climate change

The Supreme Court on Thursday imposed major constraints on the breadth of EPA's authority to limit carbon emissions from power plants.

Why it matters: The 6-3 ruling in West Virginia v. EPA will likely make it harder for the Biden administration to meet its climate targets — and may tie the hands of future administrations that want to take aggressive action on climate change.

https://www.axios.com/2022/06/30/west-v ... ate-change
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ZoWie
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Re: EARTH....

Post by ZoWie »

This just gives further support to the idea that SCOTUS was packed with justices whose only real commitment is to enact the entire right wing agenda and undo 50 years of political change. They want to go back to male dominated corporate rule by a privileged old-boy club of white Ivy League upper class twits.

The only question I have is what we're going to do about it.
"We must remember that we cannot abandon the truth and remain a free nation." --Liz Cheney, Republican, 7/21/22
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ProfX
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Re: EARTH....

Post by ProfX »

I once again respectfully dissent from our overlords at SCOTUS. They once again contradicted their own ruling from 2007.

Did the EPA overstep its authority? The EPA has the statutory authority to regulate pollutants. Is CO2 (and other greenhouse gasses) a pollutant?

Answer: (to be clear, the "False" rating here is PolitiFact refuting the claim that CO2 is not a pollutant.)

Yes, carbon dioxide is a pollutant
https://www.politifact.com/factchecks/2 ... pollutant/

[snip]

The Supreme Court, by a 5-4 vote, ruled in 2007 that greenhouse gasses fall under the Clean Air Act’s definition of pollutants and can be regulated by the Environmental Protection Agency. (The high court heard oral arguments in February 2022 challenging the ruling but has yet to render a second opinion.)

In 2009, the EPA classified greenhouse gasses - especially from vehicle emissions - as a form of pollution. The gasses "are the primary driver of climate change, which can lead to hotter, longer heat waves that threaten the health of the sick, poor or elderly; increases in ground-level ozone pollution linked to asthma and other respiratory illnesses; as well as other threats to the health and welfare of Americans," the EPA said.

[snip]

Johnson has also noted that CO2 levels were once 10 times higher than they are today and "animal life thrived and prospered." But scientists told us that occurred before humans existed. "‘Pollution’ is a term that is somewhat human-centric," John Reilly, co-director of the MIT Joint Program on the Science and Policy of Global Change, wrote in an email.

Kevin Trenberth, distinguished scholar at the National Center for Atmospheric Research, sent us an email labeling the CO2 claims by Johnson and SUVGOP "misleading rubbish."

[snip][end]

Aside from its contributions to climate change as a greenhouse gas, CO2 emissions have negative impacts on human health. Just because plants need CO2 to survive does not mean it isn't hazardous to humans.

Plus nobody is trying to eliminate it from the atmosphere (as if we even could), just bring things down to more sustainable levels.
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ZoWie
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Re: EARTH....

Post by ZoWie »

Anyone else remember when it was the Republicans who pissed and moaned all the time about judicial activism? When houses in Orange County CA had "Impeach Earl Warren" signs on their garage doors? When judicial activism was supposed to be un-American?
"We must remember that we cannot abandon the truth and remain a free nation." --Liz Cheney, Republican, 7/21/22
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carmenjonze
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Re: EARTH....

Post by carmenjonze »

ZoWie wrote: Fri Jul 01, 2022 11:10 am Anyone else remember when it was the Republicans who pissed and moaned all the time about judicial activism?
Right??

I was just thinking about this yesterday.
When houses in Orange County CA had "Impeach Earl Warren" signs on their garage doors? When judicial activism was supposed to be un-American?
Orange County, and the Inland Dump-ire, too.

I haven't read this, but it looks good enough to get.

Image

These dirty white rightwing fascists only said "impeach" because they could never get away with saying "lynch," at least not in the 70s.

They could, these days.
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ap215
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Re: EARTH....

Post by ap215 »

Tropical Storm Colin Forms: Warnings issued for Carolina Coasts

GREENVILLE, N.C. (WITN) - On this holiday weekend, a tropical storm forms along the South Carolina coast! The National Hurricane Center forecasts Colin to move northeast at 8 mph along the North Carolina coast and emerge off the north coast by late Sunday. Maximum winds are 40 mph and little change in strength is forecast. The main impact for our area will pockets of downpours, mainly along the coast. Skies will be partly sunny otherwise. Isolated tornadoes along the coast are possible as well.

Tropical Storm Warnings are in effect from Santee, South Carolina to Duck, NC including the Pamlico Sound. Secure boats, outside furniture, trash cans, and other loose objects along the coast. Winds may gust to 40 mph along and just off the coast. Inland affects will be periods of showers and storms, but no strong winds are expected from this low end tropical storm. Rain amounts should be around an inch or two along the coast with less than a half inch farther inland.

https://www.witn.com/2022/07/02/tropica ... na-coasts/
ap215
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Re: EARTH....

Post by ap215 »

Bonnie becomes 1st major hurricane of 2022

Hurricane Bonnie has put an unusual stamp in the weather history books following its formation in the southwestern Caribbean Sea, passage through Central America and emergence into the East Pacific Ocean -- all within the span of 24 hours. Now, the second named storm of the Atlantic season has become the eastern Pacific Ocean's first major hurricane.

At 10 p.m. CDT Sunday, Bonnie strengthened over East Pacific waters, just west of Nicaragua, and became the third hurricane of the season in the basin. At the time, Hurricane Bonnie had sustained wind speeds of 80 mph (128 km/h), making the cyclone a Category 1 hurricane (sustained winds of 74-95 mph or 119-153 km/h) on the Saffir-Simpson Hurricane Wind Scale.

https://www.accuweather.com/en/hurrican ... 22/1211767
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ZoWie
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Re: EARTH....

Post by ZoWie »

Once in a while you get one of these, since the isthmus down there is pretty narrow.

Bit early in the season, but the season really starts in late May now.

Once you get a storm into the Pacific, all bets are off. Anything's possible. Once in a great while, you get one that lasts longer than a month and goes all over the place. Sometimes they cross the date line, get designated typhoons and renamed, then they cross back this direction and get their old name back and become hurricanes again.
"We must remember that we cannot abandon the truth and remain a free nation." --Liz Cheney, Republican, 7/21/22
ap215
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Re: EARTH....

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Yosemite wildfire threatens grove of iconic sequoia trees

YOSEMITE NATIONAL PARK, Calif. (AP) — The largest grove of giant sequoias in Yosemite National Park remained closed Saturday as firefighters battled a blaze that threatened the gathering of the iconic trees and forced hundreds of campers to evacuate.

The rest of the park in California remained open, though smoke that hung in the air obscured some of the most scenic vistas and views.

https://apnews.com/article/wildfires-sp ... 899a485def
ap215
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Post by ap215 »

Get your telescope ready: Comet PanSTARRS is about to fly by Earth

Summer stargazers are about to be treated with views of an ancient celestial object as a large comet makes its closest approach to the Earth around the middle of the month.

Comet C/2017 K2 (PanSTARRS) has been slowly tumbling toward the sun from the far reaches of the solar system for millions of years, although it was just discovered by astronomers five years ago. The long journey will reach its climax this year as it makes its closest approach to the Earth on July 14, followed by an encounter with the sun on Dec. 19, 2022, according to EarthSky.

https://www.accuweather.com/en/space-ne ... 22/1214161
ap215
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Post by ap215 »

NASA’s Webb Delivers Deepest Infrared Image of Universe Yet

NASA’s James Webb Space Telescope has delivered the deepest and sharpest infrared image of the distant universe so far. Webb’s First Deep Field is galaxy cluster SMACS 0723, and it is teeming with thousands of galaxies – including the faintest objects ever observed in the infrared.

Webb’s image is approximately the size of a grain of sand held at arm’s length, a tiny sliver of the vast universe. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying more distant galaxies, including some seen when the universe was less than a billion years old. This deep field, taken by Webb’s Near-Infrared Camera (NIRCam), is a composite made from images at different wavelengths, totaling 12.5 hours – achieving depths at infrared wavelengths beyond the Hubble Space Telescope’s deepest fields, which took weeks. And this is only the beginning. Researchers will continue to use Webb to take longer exposures, revealing more of our vast universe.

https://www.nasa.gov/image-feature/godd ... iverse-yet
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ZoWie
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Post by ZoWie »

This is a truly remarkable photo, especially for a first-light on a new telescope. The gravitational lensing is huge and very easy to see, instantly proving some of General Relativity, though earlier observations had already done that.

I assume that the photo is an IR image made visible, since that's how this camera works. We're seeing stuff that's so distant and so redshifted that they had to go into the IR to observe it. It's extremely old, given the speed of light, which is a speed limit apparently enforced by the universe itself. It's also extremely tiny, with a field of view you could block out with a grain of sand held at arm's length. Presumably, every other similarly sized patch of the sky would have just as much in it. Dizzy.

This is stunning. Best thing that's happened in what's otherwise a shitty year.
"We must remember that we cannot abandon the truth and remain a free nation." --Liz Cheney, Republican, 7/21/22
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ProfX
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Re: EARTH....

Post by ProfX »

Image

:roll: :lol: :lol:

I can see why Trump likes him so much.
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Libertas
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Re: EARTH....

Post by Libertas »

ProfX wrote: Tue Jul 12, 2022 5:00 pm Image

:roll: :lol: :lol:

I can see why Trump likes him so much.
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ap215
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Re: EARTH....

Post by ap215 »

17 people still unaccounted for due to flooding after severe storm hits Virginia

Seventeen people remain unaccounted for in Buchanan County, Virginia, on Thursday after a severe storm struck the area, bringing heavy rain and flooding, officials said.

At the height of the flooding, 44 people were unaccounted for on Wednesday. Authorities are working to reach those remaining 17 people Thursday morning, focusing on a road that was impassable on Wednesday, the Buchanan County Sheriff's Office said. Floodwaters are now receding, said authorities, which sits at the borders of Virginia, West Virginia and Kentucky.

https://abcnews.go.com/US/40-people-mis ... d=86758342
ap215
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Post by ap215 »

Rash of lightning strike deaths increases US yearly toll to 6

A string of lightning-related fatalities across the United States over the past two weeks has increased the yearly death toll to six, less than a month after the nation recorded its first death of the year due to lightning. July is one of the deadliest months of the year for lightning deaths in the U.S., and that has proven true so far this month, with three victims dying on the same weekend.

On average, 11 Americans are killed by lightning each year by July 12. Thus far, just six have died, which is markedly below average. In a typical July, only eight Americans die from being struck by lightning. This year, five Americans have died from lightning in July so far.

https://www.accuweather.com/en/severe-w ... -6/1216520
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Number6
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Post by Number6 »

The United Kingdom issued its first ever emergency red alert for heat as temperatures reach 104 degrees.
For the first time in the history of England, high temperatures up to 104 F are expected. The peak temperature is as early as Monday or Tuesday. The worst heat will hit the heavily populated A1 corridor, including London, Birmingham, and Manchester.

Continental Europe will not get off as easily; the extremely deadly temperatures will continue for twenty days, long-duration heatwave, meteorologists warn. Hot temperatures have hammered Iberia and France for weeks; this wave will expand across Europe. Agriculture, livestock, and wildlife will all be in danger.

England's summers are generally cool; the 50's, the '60s, and '70s are typical. Air conditioning units were not considered necessary as a result.
https://www.dailykos.com/stories/2022/7 ... -of-deaths
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