© Kam Hoo Man

Tuen Mun, Hong Kong, China

Latitude: 22° 23' 27'' N

Longitude: 113° 58' 21'' E

11 July 2015 0724 (Local Time)

Image P/S code: S.13.1.1

Image I.D.: 5088

• Images & related info Other Images Images of 1987 edition
• 

  22° halo and Cirrostratus fibratus

  The 22° halo appears as a white or mostly white luminous ring of 22° radius with the light source at its centre. The cloud in this picture is mainly Cirrostratus fibratus.

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

  © Kam Hoo Man
  Tuen Mun, Hong Kong, China
  Latitude: 22° 23' 27'' N
  Longitude: 113° 58' 21'' E
  11 July 2015 0724 (Local Time)
  
  
  Image P/S code: S.13.1.1
  Image I.D.: 5088
• 
  © The Government of the Hong Kong Special Administrative Region
• 
  Relatively moist layers indicated on the ascent between 350 and 450 hPa may give an indication as to the height of the Cirrostratus.
  © The Government of the Hong Kong Special Administrative Region
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  Cirrostratus nebulosus and 22° halo

  The photo shows a thin veil of Cirrostratus cloud invading from the west (right of photograph). The lack of form or detail identifies it as the species nebulosus. A small amount of Altocumulus is also visible. The main feature is a complete moderate intensity 22° solar halo, caused by solar rays passing through many randomly arranged ice crystals.

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

  © Frank Le Blancq
  St. Ouen, Jersey
  Latitude: 49° 13' 45'' N
  Longitude: 2° 13' 33'' W
  29 March 2016 1300 (Local Time)
  
  
  Camera direction: towards S
  C_L = 0, C_M = 3, C_H = 6
  Image P/S code: P.13.1.1
  Image I.D.: 4136
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  Cirrostratus fibratus undulatus with 22° halo

  The double layer of Cirrostratus is identified by the alignment of fibratus striations. In the lower layer, the fibratus is aligned north-east to south-west; the higher layer is at a right angle to the lower layer; that is, south-east to north-west.

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

  © Stephen Burt
  Stratfield Mortimer, near Reading, Berkshire RG7, United Kingdom of Great Britain and Northern Ireland
  Latitude: 51° 22' 12'' N
  Longitude: 1° 2' 24'' W
  02 December 2009 1011 (Local Time)
  
  
  Camera direction: towards SE
  C_L = 0, C_M = 0, C_H = 8
  Image P/S code: P.3.2
  Image I.D.: 5491