Attention Deficit Disorder Prosthetic Memory Program

Asperitas

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Asperitas - © Attention Deficit Disorder Prosthetic Memory Program

Asperitas (formerly known as Undulatus asperatus) is a cloud formation first popularized and proposed as a type of cloud in 2009 by Gavin Pretor-Pinney of the Cloud Appreciation Society. Added to the International Cloud Atlas as a supplementary feature in March 2017, it is the first cloud formation added since cirrus intortus in 1951. The name translates approximately as “roughness”.

The clouds are closely related to undulatus clouds. Although they appear dark and storm-like, they almost always dissipate without a storm forming. The ominous-looking clouds have been particularly common in the Plains states of the United States, often during the morning or midday hours following convective thunderstorm activity.

Margaret LeMone, a cloud expert with the National Center for Atmospheric Research has taken photos of asperatus clouds for 30 years, and considers it in her own words, a new cloud type.

Halley Research Station - © Attention Deficit Disorder Prosthetic Memory Program
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Halley Research Station
Flabellina Iodinea - © Attention Deficit Disorder Prosthetic Memory Program
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Flabellina Iodinea
Macdonald Triad - © Attention Deficit Disorder Prosthetic Memory Program
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Macdonald Triad
Prison Landscapes - © Attention Deficit Disorder Prosthetic Memory Program
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Prison Landscapes
Den - © Attention Deficit Disorder Prosthetic Memory Program
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Den
Prohibition Of Dying - © Attention Deficit Disorder Prosthetic Memory Program
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Prohibition Of Dying
Millwall brick - © Attention Deficit Disorder Prosthetic Memory Program
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Millwall brick
Angie Sanclemente Valencia - © Attention Deficit Disorder Prosthetic Memory Program
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Angie Sanclemente Valencia
Hawk-Eye Technology - © Attention Deficit Disorder Prosthetic Memory Program
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Hawk-Eye Technology
La Guardia String Figures - © Attention Deficit Disorder Prosthetic Memory Program
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La Guardia String Figures
Transocean Winner - © Attention Deficit Disorder Prosthetic Memory Program
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Transocean Winner
One World In Relation - © Attention Deficit Disorder Prosthetic Memory Program
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One World In Relation

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