© Michael Bruhn

Aspendale Gardens, Victoria, Australia

Latitude: 38° 1' 51'' S

Longitude: 145° 7' 26'' E

10 November 2016 1919 (Local Time)
Camera direction: towards NE

Image P/S code: S.4.8

Image I.D.: 5052

C_L = 0, C_M = 3, C_H = 0

• Images & related info Other Images Images of 1987 edition
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  Altocumulus stratiformis translucidus perlucidus

  These regularly arranged cloud elements are Altocumulus as they have an apparent width of between 1 to 3 fingers at arm's length. They are of the species stratiformis (they are spread out in an extensive horizontal layer) and the varieties translucidus (they are sufficiently translucent to reveal the position of the Sun) and perlucidus (there are distinct spaces between the elements). 

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  © Michael Bruhn
  Aspendale Gardens, Victoria, Australia
  Latitude: 38° 1' 51'' S
  Longitude: 145° 7' 26'' E
  10 November 2016 1919 (Local Time)
  
  
  Camera direction: towards NE
  C_L = 0, C_M = 3, C_H = 0
  Image P/S code: S.4.8
  Image I.D.: 5052
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  A weak high pressure system and ridge dominate the area here. The Altocumulus formed ahead of a weak upper level trough in the mid levels.

  © Commonwealth of Australia 2016, Bureau of Meteorology
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  The enhanced infrared satellite image shows an area of cloud tops ranging from –10 °C to –20 °C (4 200 to 5 600 m (14 000 to 18 500 ft) from the nearby upper-air sounding).

  © Commonwealth of Australia 2016, Bureau of Meteorology / Japan Meteorological Agency
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  Altocumulus stratiformis translucidus perlucidus undulatus

  The relatively small white elements in the upper two thirds of this image are identified as Altocumulus. These elements make up an extensive sheet (species stratiformis). To this identification are added the varieties translucidus (the elements are sufficiently translucent to reveal the position of the Sun), perlucidus (small gaps between the elements reveal blue sky) and undulatus (separate elements are arranged in broadly parallel lines).

  The Altocumulus and some higher cirriform cloud were advancing from the west (left in the photo) ahead of a weak warm front. Also visible are traces of Cumulus fractus (light grey in the top right) and a layer of dark grey Stratocumulus stretching towards the horizon (lower part of the image). 

  Links in the image description will highlight features on the image. Mouse over the features for more detail.

  © Frank Le Blancq
  Near Guernsey
  Latitude: 49° 23' 43'' N
  Longitude: 2° 28' 13'' W
  02 August 2008 2012 (Local Time)
  
  
  Camera direction: towards NW
  C_L = 8, C_M = 3, C_H = /
  Image P/S code: P.4.8
  Image I.D.: 5168