Emission and spectroscopy of the clear atmosphere

Author(s):  
Philip Rosenkranz ◽  
Stefan Buehler ◽  
Dietrich Feist ◽  
Tim Hewison ◽  
Nicole Jacquinet-Husson ◽  
...  
Keyword(s):  
1928 ◽  
Vol 32 (209) ◽  
pp. 342-384
Author(s):  
F. Entwistle

Among the various applications of meteorology to the practical requirements of everyday life, the observation of fog, as a meteorological element, has. been associated primarily, in the past, with locomotion on land and with navigation on the sea. The first scale of fog intensity used by meteorological observers in this country was, in fact, based on the effect of different degrees of atmospheric obscurity on navigation. The scale was drawn up in 1903 as the result of an investigation into the conditions of formation of London fogs, and subsequently modified by the Meteorological Office, in conjunction with the Admiralty and Trinity House (see Table I.). It included five specifications of fog intensity ranging from a clear atmosphere free from fog or mist, represented by “ of,” to a thick fog, denoted by “ sf.”Within the last twelve years, while the importance of fog as an obstruction to road and rail transport and to shipping has in no way diminished, the reporting and forecasting of fog has assumed a new significance in relation to air navigation.


2016 ◽  
Vol 596 ◽  
pp. A47 ◽  
Author(s):  
E. Sedaghati ◽  
H. M. J. Boffin ◽  
T. Jeřabková ◽  
A. García Muñoz ◽  
J. L. Grenfell ◽  
...  
Keyword(s):  

1884 ◽  
Vol 12 ◽  
pp. 187-189
Author(s):  
John Aitken

When residing in the south of France lately, I happened to look at the new moon one evening through the clear air of the “Mistral,” which was blowing at the time, and not being able to see the dark body of the moon, it all at once struck me that something more was necessary than a clear atmosphere in order to enable us to see the dark side of the moon, and that the dark side would be best seen when the earth was to a great extent covered with clouds.


Radio Science ◽  
1969 ◽  
Vol 4 (12) ◽  
pp. 1251-1255 ◽  
Author(s):  
Hans Ottersten

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