EARTH....

News and events of the day
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
Posts: 1956
Joined: Sun Oct 24, 2021 10:41 pm

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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Joined: Thu Oct 28, 2021 5:46 pm

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
Posts: 1956
Joined: Sun Oct 24, 2021 10:41 pm

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
Posts: 1956
Joined: Sun Oct 24, 2021 10:41 pm

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.
Apathy leads to tyranny. There's no stasis on a moving train.
Motor City
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Joined: Thu Oct 28, 2021 5:46 pm

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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