EESA09H3 Lecture Notes - Lecture 4: Pressure-Gradient Force, Coriolis Force, Fictitious Force
Document Summary
All the level of the clouds can be mixed e. g. stratostratus; altostratus; nimbostratus; etc. (check ppt for other names) Science of wind movement of air in an ordered fashion. Causes of wind difference in air pressure (pressure gradient) air tends to flow from high pressure to low pressure creates a net force pressure gradient force with closely spaced isobars the wind is strong and vice versa. Vertical pressure 500 mb per 5640 meters/ 1 per 10 meter. Horizontal pressure 1 mb per 6000 meters. Coriolis force fictitious force due to the rotation of the earth causes an object to deflect the right in northern hemisphere and vice versa in the southern hemisphere. The strength of the force is based on the distance from the equator lower at equator and higher at the poles. Upper level wind (geostropic wind) 1km or above.