Archive for December, 2007

the clouds done got angry

A few nice cloud types images I found:

the clouds done got angry
cloud types

Image by djsosumi

Sunrise Burleigh Heads_1163
cloud types

Image by Michael Dawes

3D-06-20-08-0001a clouds
cloud types

Image by jimf0390

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Universal Tides: Barbed Wire Blues.
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Secret X-37B space plane has changed orbit

Secret X-37B space plane has changed orbit
The U.S. Air Force’s secretive X-37B space plane apparently boosted itself into a new orbit Aug. 9, according to reports from seasoned satellite trackers around the world, Space..com has learned.
Read more on MSNBC

The nation’s weather
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Read more on The Argus-Press

Why is sea-surface temperature a critical factor in the development of tropical cyclones?

Question by Questions: Why is sea-surface temperature a critical factor in the development of tropical cyclones?
a) Why is sea-surface temperature a critical factor in the development of tropical cyclones?

b) Suppose that efforts to modify hurricanes are successful. Speculate on what this might mean for poleward heat transport.

Please give a detailed response for each question, thanks!

Best answer:

Answer by Michel Verheughe
Well, I read that the hurricane season in the southern part of the North Atlantic starts when the surface sea temperature reaches 27 degrees Celsius.

But what creates the energy needed to get the air moving at a speed corresponding hurricane force in the Beaufort scale?

Heat? No, difference of heat! It’s the principle of the chimney.

So, in order to form hurricane, you need a lot of moist and mild air under and … cold air above.

It is similar to global warming: Many predict terrible storms. Perhaps but not for the low pressures on the polar front. Because what makes the intensity of the storms there, is the fact that in the autumn and winter the north pole is very cold and the >>difference<< of temperature with the equator is much greater. But the global warming shows an increase of the average temperature over the arctic, a slight increase over the antarctic and none over the equator. Therefore the difference between arctic polar air masses and temperate ones should be less, right? Say, if the Coriolis effect didn't create a clockwise current in the North Atlantic, the sea between the Cape Verde islands and the Caribbean wouldn't be so warm and hurricanes wouldn't happen as it is for the west coast of the US that is in the cold Pacific current. But then, that is assuming that the air aloft is the same temperature as it is now. But if we change the climate, everything change, right? What about the temperature of the air at the tropopause? Talking about global warming we consider only the temperature at sea level and we don't really know how it affects the top of the troposphere. This is the point made by the environmentalists: we know what we have. It may not be the best but nature adapted to it. We don't know how climatic changes will affect us and that, in itself, is scary, isn't it?

Add your own answer in the comments!

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Time to Get Your California Teacher Certification

Time to Get Your California Teacher Certification

There are many reasons for oceanographers to want to get their California teacher certification. Some people may start out their careers intending to teach science. Other people make the choice to become a teacher later on in life. Some people though just decide to stay in school longer and diversify their skills.

Some people start out their academic careers knowing exactly what they want to do in life. If they want to teach oceanography in California then they will want their California teacher certification. This can be an arduous project. An oceanography degree already requires many classes. A person must exceed in biology, and various other earth science classes. All of these classes also have labs, which take even more time. If a person wants to teach oceanography, then they will of course need education classes on top of that already heavy class load. To get your California teacher certification, you will also need many education classes. These too require a significant time commitment because you will need to have practice teaching students.

Some people decide later in life to go back to school to get their California teacher certification. Sometimes people find that while they are working, the most enjoyable part of their job is teaching others about it. An oceanographer has so much to teach people about the environment. People have finally been listening to environmentalists these days. There is much concern over man’s effects on the ocean. Any school would find it very worthwhile to hire a person with real world knowledge and experience of a growing field. Also, Oceanographers may find it very worthwhile to go back to school to get their California teacher certification because of just how many people will be changed by their guidance.

Some people choose to remain in school as long as possible to take advantage of the programs available through a professorship. An oceanographer may want the freedom to continue doing research within a university setting. Professors though also need to teach. An oceanographer in California would need to get his or her California teacher certification. A professor can also benefit from this set up though. Professors doing research have access to research assistants and other university facilities that will only go to help their research. Some professors choose to only teach one class too. Although that may be the case this can still be an amazing class. There could be multiple discussions of it and a professor could be teaching hundreds of students every semester.

Darren Ferguson is an expert on teacher certification and qualifications. He provides useful information about to become a teacher in your state. If you want to know more about Teacher certification, California teacher certification and New York teacher certification then visit certificationmap.com

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Q&A: What can I expect if I move to Richmond Ky from Calfornia? Weather, education, jobs, beauty?

Question by Misanick: What can I expect if I move to Richmond Ky from Calfornia? Weather, education, jobs, beauty?
I am seeking a home in Richmond KY or the Lexington area and would like to know what I am in for. I want at least 3 acres for horses and a big house. Moving from California.

Best answer:

Answer by Jan C
Thanks for asking. I am in Lexington and one of the most beautiful places in America. Richmond is a small (med size) college town. The weather here is very much 4 seasons. Was very cold for about a month this year. You will need a lot of money to purchase 3 acres in Lexington (Fayette County). The outlying counties have less expensive property. The cost of living here is quite modest. Homes are also much more reasonably priced. Welcome to Kentucky. Further questions, please let me know.

Know better? Leave your own answer in the comments!

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Cirrocumulus Clouds the Best Sunsets

Cirrocumulus Clouds the Best Sunsets

Cirrocumulus clouds are found worldwide at high altitudes, typically above 16,500 feet. Just like cirrostratus, cirrocumulus occurs when a large area of moist air at these high altitudes reaches saturation and freezes. Because of this cirrocumulus clouds consist entirely of ice crystals.

Rarely does cirrocumulus dominate the sky, but when it does it can produce spectacular sunsets as the sunlight reflects off the clouds from low on the horizon. For this reason cirrocumulus is often considered the most attractive of cloud types, often forming spectacular patterns stretching for hundreds of miles across the sky.

A particularly dramatic form is cirrocumulus undulates, appearing as fine ripples stretching across the sky. These ripples are generated by high level atmospheric waves, caused by wind sheer.

Cirrocumulus clouds appear as white patches or spherical masses, known as elements. These elements can occur in undulating rows and patterns, like small ripples, often resembling the small ripples found on a sandy beach.

The main difference between cirrocumulus and altocumulus is the small size of the individual clouds, and the great height at which they form.

In isolation cirrocumulus clouds do not have any great meteorological significance, although a steady increase in these clouds may indicate the approach of a frontal system. However this is only a loose connection and in forecasting terms cirrocumulus clouds aren’t really a reliable indicator. They can sometimes appear when a high pressure system is beginning to weaken but don’t tell much beyond that.

The temperature of the atmosphere is around – 40 C (which is also -40 F) at the cirrus level and this explains why cirrocumulus clouds consist entirely of ice crystals.

And so to summarise, cirrocumulus clouds:

1. Are located between 16,500 and 40,000 feet

2. Consist of ice crystals as they form at a temperature 40 below freezing

3. Are a poor indicator for any weather forecasting puposes (a very basic indicator of collapsing high pressure, or an approaching frontal system)

4. They produce spectacular sunsets and are considered the most attractive of all types of clouds.

5. Appear as fine ripples in the sky, generated by wind sheer.

6. And finally, cirrocumulus clouds are common in all latitudes.

Mark Boardman BSc dip.hyp is a leading author and expert on the climate. For more information about Cirrus Clouds. or a look at World Weather, go and see these sites.

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