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Latest Cirrus cloud Stories

First ATTREX Science Mission Completed By NASA
2014-02-14 14:59:40

Beth Hagenauer - NASA NASA's Global Hawk No. 872 completed a 17.5-hour science flight Feb. 14, it's first for the 2014 Airborne Tropical Tropopause Experiment (ATTREX) mission. The unmanned aircraft, carrying a suite of specialized instruments, flew from Andersen Air Force Base on the island of Guam. Objectives were to sample vertical distribution of the Western Pacific tropical tropopause layer trace gases, water vapor and clouds. In situ data was gathered about cirrus clouds in the...

Pollution Causes Thunderstorms To Leave Lingering Clouds
2013-11-26 15:18:22

Pacific Northwest National Laboratory Study shows why pollution results in larger, deeper and longer lasting storm clouds, leading to colder days and warmer nights A new study reveals how pollution causes thunderstorms to leave behind larger, deeper, longer lasting clouds. Appearing in the Proceedings of the National Academy of Sciences November 26, the results solve a long-standing debate and reveal how pollution plays into climate warming. The work can also provide a gauge for the...

What Are Clouds On Mars Like?
2013-10-08 04:34:52

[ Watch the Video: Simulating Martian Clouds ] April Flowers for redOrbit.com - Your Universe Online The clouds on Mars, at first glance, might be easily mistaken for those on Earth. NASA's Opportunity rover returned images of the Martian sky with gauzy, high-altitude wisps that are similar to our cirrus clouds. These clouds most likely consist of either carbon dioxide or water-based ice crystals, given what scientists currently understand about the Martian atmosphere. However,...

NASA's Landsat Satellite Searching For A Cloud-Free View
2013-05-23 09:07:13

NASA For decades, Landsat satellites have documented the desiccation of the Aral Sea in Central Asia. Once one of the largest seas in the world, it shrunk to a tenth of its original volume after Russia diverted its feeder rivers in the 1960s. Scientists studying the Aral Sea's changing ecology and retreating shoreline have looked to Landsat -- and a new feature of the Landsat Data Continuity Mission will help ensure they get a clear, cloud-free view. One of two new spectral bands...

Cirrus Cloud Formation Depends Mainly On Mineral Dust, Metallic Particles
2013-05-10 06:04:31

April Flowers for redOrbit.com - Your Universe Online At any given time, nearly one-third  of the planet is covered by cirrus clouds — the thin wisps of vapor that trail across the sky — which coalesce in the upper layers of the troposphere, as much as 10 miles or higher above the surface of the Earth. Cirrus clouds cool the planet by reflecting incoming solar radiation, and warm it by trapping outgoing heat. In this way, they influence global climate, so understanding...

What Kind Of Cloud Is That?
2012-03-19 04:55:14

RedOrbit.com Meteorologist Joshua Kelly Have you ever looked up in the sky and wondered what all those different types of clouds actually are? Well to be exact there is a cloud for every type of weather event. When high pressure is to the east of a viewing place, the most common types of clouds to find are the Cumulus family of clouds. There are several types of cumulus clouds ranging from Cumulus — which have the appearance of small marshmallows — to the  middle...

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2011-02-11 13:51:08

Author: Dr. Tony Phillips - Science @ NASA NASA's Solar Dynamics Observatory (SDO), best known for cutting-edge images of the sun, has made a discovery right here on Earth. "It's a new form of ice halo," says atmospheric optics expert Les Cowley of England. "We saw it for the first time at the launch of SDO--and it is teaching us new things about how shock waves interact with clouds." Ice halos are rings and arcs of light that appear in the sky when sunlight shines through ice crystals in...

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2010-11-24 08:45:00

Clouds play a major role in the climate-change equation, but they are the least-understood variable in the sky, observes a Texas A&M University geoscientist, who says mid-level clouds are especially understudied. The professor, Shaima Nasiri, is making those "in-between" clouds the focus of her research, which is being funded by NASA. Mid-level clouds are so understudied, Nasiri says, that scientists have yet to develop a common nomenclature for them. "We do not have a unified definition,...

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2010-11-17 07:55:00

By Michael Finneran, NASA Langley Research Center When Patrick Minnis saw video of the "mystery" contrail Nov. 9 that looked like a missile launch near Catalina Island off Los Angeles, he figured it the way most people did. "I assumed it was a missile," said Minnis, a contrail expert in the Science Directorate at NASA's Langley Research Center in Hampton, Va. Then he got a call from an Associated Press reporter and told her, yes, it sure looks like a missile. "She responded with links to two...

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2010-08-10 08:15:00

Gaze up at a cloud-filled sky, and you may spot the white, fluffy shape of a dragon, fish or elephant. Looking at the same sky, Graeme Stephens sees a different vision -- a possible future for Earth's climate. Stephens, a professor at Colorado State University in Ft. Collins, is principal investigator of NASA's CloudSat mission, launched in 2006 to improve our understanding of the role clouds play in our complicated climate system. Stephens says that as Earth's global temperature continues to...


Latest Cirrus cloud Reference Libraries

Surface Analysis Features
2012-09-03 16:09:19

The above map looks at what is known as ceilings. The definition of ceilings is the first broken or overcast layer of cloud cover in the atmosphere. For it to be considered a ceiling the clouds need to cover more than half of the sky. If we look at the red circled area we see the numbers of 1 and 2. This tells us that there is a ceiling at 1,000-2,000ft which are in the level of low clouds such as cumulus or stratus. The second is the black circle found in the Dakota’s. Here we are...

Cumulus Clouds (Low Cloud)
2014-01-11 00:00:00

If you look in the photo above you can see the line of Cumulus clouds that appear in the background. These clouds were created by daytime heating and also an unstable atmosphere. The moisture for these clouds was rising from the Pacific Ocean. The darker cloud is the stronger of the cumulus clouds meaning that the majority of the moisture is being absorbed by that cloud. The clouds around this one are also starting to get more moisture from the ocean to build. Above the cumulus clouds you...

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2009-07-04 15:10:05

Cirrus clouds are thin wisplike strands, sometimes accompanied by patches. Their shape and arrangement lead to their common name of "mare's tail". These clouds can be so extensive that they are virtually identical to one another and hard to tell apart. Sometimes high altitude convection produces another form of cirrus called cirrocumulus. Many cirrus clouds produce hair-like filaments made of heavy ice crystals that precipitate from them. This precipitation often indicates the difference in...

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2009-07-04 15:02:09

Cirrocumulus clouds are high-altitude clouds that mainly occur between 16,000 and 40,000 feet. Like most cumulus clouds, these clouds indicate a vertical and upward transference of atmospheric conditions. Unlike other cirrus clouds, cirrocumulus composition includes super-cooled liquid water droplets. Ice crystals are also present, and usually, the ice crystals cause the droplets in the cloud to freeze rapidly, transforming the cirrocumulus into cirrostratus. This process can also produce ice...

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Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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