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  Cloud Sonification 

 

Welcome to the cloud sonification lab. After many years of research, many scientists now favour a sonic represantation of their visual data.

Our laboratory is based on a program called javoice by Peter B.L. Meijer
 

The vertical axis represents frequency proportional to altitude and the horizontal axis is time.
Please wait until the applet is running, then choose your cloud. You can also draw on the pictures - if you prefer other parameter settings such as a different grain or sound conversion time, please use the reset button. You can also browse on while the applet is starting: IfT

 

its is also possible to sonify a changing cloud or a variation of the same. More animations will soon be visible.

use arrow left/right   

 

 
 

 please wait until the applet is running, then choose your cloud



Stratocumulus Cloud

 




Stratocumulus Cloud

 

 


four diagrams showing the density of ice crystals in different altitudes  if you are getting interested in cryonic clouds , see our cirrus selection or collect more general information about low temperature at the department of kryoelectric atmosphere research

 
 
 

after 6 Minutes
source

 
 

after 30 Minutes

 
 

after 60 Minutes

 
 

after 120 Minutes




compare two types of data formats (greyscale/bitmap) of the same cloud: 

 

 
 

Kelvin-Helmholtz-Cloud (greyscale)

 
 

Kelvin-Helmholtz-Cloud (bitmap)

 

 


the following examples origin is by B.Mühr. With his support we have the correct classification as well as high quality images. You can find a link to the source near each image. The special use of the photographs requires the square format, so sometimes details are used and there is a certain distortion at times; those have no significance to the resulting sound.   Institut fur Meteorologie und Klimaforschung Karlsruhe





some examples of Kelvin-Helmholtz-Clouds: 

 
 

 
 

Kelvin-Helmholtz-Waves
source

 


 

 
 

Kelvin-Helmholtz-Waves(detail)
source

 

 
 

Kelvin-Helmholtz-Waves
source
lower resolution

 

 
 

Kelvin-Helmholtz-Waves
source

 

 
 

Kelvin-Helmholtz-Waves
source
lower resolution




 



High Clouds, mostly consisting of ice crystals  

 

 

Cirrus uncinus and Cirrus fibratus

 
 

Cirrus uncinus and Cirrus fibratus as bitmap: compare the difference in sound
source

 
 

Cirrus fibratus radiatus
source

 

 

 

 
 

Altocumulus stratiformis perlucidus undulatus
source

 

 

 

 
 

Cirrus spissatus,  vapour trails
source

 

 

 

 

 
 

Cirrus spissatus
source

 

 

 
 

Cirrus fibratus (detail)
source

 

 

 

 
 

Cirrus unicus (?)
source

 

 

 
 

 

 

Cirrus unicus

source

 

 

 

 

 
 

Cirrus unicus(detail)
source

 

 


 

 
Clouds of medium altitude follow...  




Altocumulus stratiformis perlucidus undulatus and Altostratus translucidus
source

 

 

 

 
 

Cirrocumulus stratiformis and Cirrus fibratus
source

 

 

 
 

(Detail)
source

 

 

 
 

(Detail)
source

 

 

 
 
 

 

 

 

 

Cirrus uncinus

source

 

 

 

 

 
 

Altostratus opacus undulatus

source

 




The King

 
 

 

Altostratus opacus undulatus
source

 

 


 

Altocumulus stratiformis perlucidus
source

 

 


 

Altostratus opacus
source
 

 

 

 

 

 

 

Altocumulus stratiformis perlucidus

source
 

 

 

 

Altostratus translucidus mamma

source

 
 

 

 

Altocumulus castellanus and Cirrus fibratus

source

 
 

 

 

Cirrocumulus stratiformis undulatus, Cirrus fibratus

source

 
 

 


 

 
 

 

 

Altocumulus stratiformis perlucidus

source
 
 

 
 


 

 
 

 

Altocumulus lenticularis

source
 
 

 
 

 


      Altocumulus lenticularis mit Kelvin-Helmholtz-Wellen and Altocumulus floccus undulatus

source
 
 

 

 

 

 


 

Altocumulus floccus virga
source
 
 

 
 

 

 

 

Altocumulus stratiformis perlucidus undulatus

source
 
 

 
 

 

Altocumulus floccus virga

source
 
 

 

 

 

 

Stratus Cloud


 

 



 
also a sonic cloud, from a certain point of view: Sonagram of a grass singer couple

 

Cisticola hunteri

source: department of zoology
 
 
 
 
 


(c) Julian Rohrhuber, Hochschule für bildende Künste, Hamburg email rohrhuber@rrz.uni-hamburg.de