Visibility and Fog Drop Size Spectra at Misawa Air Base

スポンサーリンク

概要

• 論文の詳細を見る

• Size spectra of fog drops are investigated at Misawa Air Base to determine which sizes of drops are mainly responsible for degrading visibility in fogs. It is found fog drops smaller than 5μm in diameter contribute less than 2% to the extinction coefficient. Degraded visibility is caused by smaller fog drops than 60μm under thinner fog layers than 130m in this study. Drop size distributions spread and the representative drop size for degrading visibility increases with fog thickness under fog layers thicker than 280m. So, not only the maximum drop size increases with fog thickness but also the influences of large drops on the extinction coefficient in fogs increase with fog thickness. For evolutions of visibility, increase of small drops is important for rapid degrading visibility irrespective of fog thickness and increase of large drops corresponds to slow changes of visibility under thick fogs.

• 社団法人日本気象学会の論文
• 2008-12-25

著者

• Kobayashi Fumiaki

  Institute Of Earth And Ocean Sciences National Defense Academy

• OKUDA Tomohiro

  Institute of Earth and Ocean Sciences, National Defense Academy

• TOMINE Kikuro

  Institute of Earth and Ocean Sciences, National Defense Academy

• SUGAWARA Hirofumi

  Institute of Earth and Ocean Sciences, National Defense Academy

• Sugawara Hirofumi

  National Defense Acad. Of Japan

関連論文

• Visibility and Fog Drop Size Spectra at Misawa Air Base
• Mechanisms of temporary improvement and rapid changes in visibility in fogs

スポンサーリンク