Geography--Sign for wind speed
- 匿名1 十年前最愛解答
Sign for wind speed
Wind speed symbols are wind barbs which show both speed and direction on Weather Station Models as in the diagram below.
Wind speed is in units of knots ( 1knot=1.15miles/hour)
(Alternatively :Wind = The air is nearly always in motion, and this is felt as wind.Units: Meter per second for wind)
Visibility is the greatest distance at which prominent objects, such as buildings, mountains, trees, and other objects are clearly seen and identified by unaided, normal eyes. It is also called horizontal visibility.
Units: Kilometer資料來源： http://weather.about.com/od/forecastingtechniques/... http://weather.jsums.edu/~mm5/param_descrpt_mm5.ht...
- 1 十年前