Publication Date:
2022-06-29
Description:
During the Atlantic Expedition "Meteor" 1965 the standard visibility was measured aboard with an AEG/FFM-Scattered Light Recorder. The working principle, technique and accuracy of this instrument is described. Furthermore some empirical results are discussed, e. g. the errors due to the disturbing influences of the ship and those caused by contamination of the lenses, The measured values are compared with estimated values of visibility by eyeobservation. For certain periods with uniform atmosphericconditions, hourly mean values of visibility have been correlated with air temperature, humidity and wind. The visibility shows a rather weak daily period for pure oceanic aerosol, whereas about 100 miles off the African coast the period appeared more pronounced. Interesting differences have been found in the relative changes of visibility for different origins of the aerosol. 'fhis results into a dependence of visibility on the wavelength of scattered radiation.
Type:
Article
,
PeerReviewed
Format:
text
