Cloud Rosettes in the Sky

Actinoform clouds pop up off the western coast of Australia.

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Clouds Near Australia

Gravity waves are the atmosphere’s way of restoring balance, and can produce unusual cloud patterns.

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Hole Punch Clouds in Acadiana

These “hole punch” clouds were just as apparent from above as they were from below. This MODIS image shows a number of round holes in a blanket of cloud cover over Oklahoma, Arkansas, Louisiana, and Texas. A few of the “holes” are elongated, with what appear to be smaller clouds inside them.

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Cloud Formations off the West Coast of South America

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Open- and Closed-Cell Clouds over the Pacific Ocean

Acquired April 17, 2010, this natural-color image shows a network of open- and closed-cell clouds over the Pacific Ocean off the coast of Peru.

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Using Clouds to Map Life

A new high-resolution cloud atlas will help ecologists map the distribution of ecosystems on the ground.

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Evolving Views of Clouds

Satellite images separated by 50 years show actinoform clouds over the Pacific Ocean.

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CERES Global Cloud Fraction

For more than 10 years, students from around the world have been participating with NASA in a science project called Students Cloud Observations Online, or S’COOL, for short.

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Nighttime Waves Over the South Atlantic

A layer of marine stratocumulus clouds off the west coast of Africa displayed some particularly complex wave patterns.

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Open- and Closed-Cells over the Pacific

Whether a patch of clouds contains open or closed cells offers a clue about whether rain is falling below.

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