Chicken Little?

Jim Thompson · 2007-01-10T15:30:09+00:00

See... ...Jim Thompson-- | James E.Thompson, P.E. | mens || Analog Innovations, Inc. | et || Analog/Mixed-Signal ASIC's and Discrete Systems | manus || Phoenix, Arizona Voice:(480)460-2350 | || E-mail Address at Website Fax:(480)460-2142 | Brass Rat || | 1962 | I love to cook with wine. Sometimes I even put it in the food.

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Don Klipstein 19 years ago

In , Joerg wrote in part:

See what happens this winter! So far the weather pattern has been making the West cold and the East warm! It appears to me that this may shift soon!

Also, I see global warming coming late to Pacific coastal USA areas, since the water mass of the Pacific Ocean has a thermal time constant (in response to Earth's atmosphere or sun output changing the balance between income and outgo in thermal radiation) in the 1-1.5 century ballpark.

Currently there is an El Nino, and those traditionally foment a "southern USA storm track" (often but not always nurning northward at the East Coast or sometimes in the Appalachians). "Southern Tier States" on the El-Nino-related storm track tend to be a bit cooler than their "normal" during an El Nino. Meanwhile, outside that "South/East" storm track, El Nino tends to warm the USA. And on average, mid-Atlantic to coastal New England tends to be warmed by El Nino in the first half of winter even if the storms make things chillier in the second half.

- Don Klipstein ( snipped-for-privacy@misty.com)

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Robert Latest 19 years ago

On Wed, 10 Jan 2007 22:22:27 -0500, Sean wrote in Msg.

The North-West passage has been thawing continuously over the years and will soon be open for commercial freight shipping.

robert

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Robert Latest 19 years ago

On Thu, 11 Jan 2007 06:06:22 +0000 (UTC), Don Klipstein wrote in Msg.

No. The UV portion of the sun's radiaton does not significantly contribute to global warming. It does contribute to skin cancer though.

robert

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Rich Grise 19 years ago

And the whole "ozone depletion" craze is a crock of s*it.

Didn't anybody learn in school that UV dissociates O2 molecules, which then oxidizes other O2 into O3, which eventually breaks down spontaneously anyway? It's the _OXYGEN_ that filters the UV - ozone is a side effect.

There's an ozone hole over the antarctic because there's no sunlight there, notwithstanding the auroras, which also break down ozone. Nobody spotted the "hole" before because nobody had ever looked for one.

Thanks, Rich

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ian field 19 years ago

And at ground level ozone is a known health hazard.

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Michael A. Terrell 19 years ago

So is Rich.

Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida

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Rich Grise, Plainclothes Hippi 19 years ago

How's that, Michael? All that hatred burning you up inside?

Sorry. Rich

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Don Klipstein 19 years ago

Most sources say the sun's surface is 5800 elvin, a few say 5700. Other than some narrow absorption lines, the sun's spectrum is like that of a blackbody at that temperature.

A 5800 K blackbody has about 7.8% of its output in the UVA (although most of this range is unaffected by ozone) and about 2.2% of its output in the UVB. Changing the atmosphere's transparency to these wavelength ranges will affect surface temperature.

- Don Klipstein ( snipped-for-privacy@misty.com)

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Don Klipstein 19 years ago

Oxygen just absorbs UV of wavelengths shorter than somewhere around 200 nm. Ozone absorbs longer wavelengths up to about 300-310 nm.

The Antarctic has sunlight half the time, just like every other location in the world.

They have been tracking the ozone hole since 1979, and it did a lot of growing from then to the mid 1990's.

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- Don Klipstein ( snipped-for-privacy@misty.com)

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Malcolm Moore 19 years ago

No sunshine over the Antarctic? Really? Have a look at

which is the webcam at the South Pole. The archive image (Sept 21) has a good shot of the sun. The blurb says

"In order to preserve the life of the camera, it is tilted down onto the snow when the sun is in the field of view, which occurs for several weeks around sunset (March) and sunrise (September) when the sun marches in a circle above the horizon."

Between September and March there is continuous sunshine.

At least you referred to "hole" in inverted commas, which actually merely refers to a region of depleted ozone. There are 50 years of measurements, the "hole" has been observable since about 1980

-- Regards Malcolm Remove sharp objects to get a valid e-mail address

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