Shuo Yang
Response Paper
Topic: Introduction to Kunming quasi-stationary front

Kunming is the capital city of Yunnan province that located in the Southwest of China. It is a city where has the spring all the year round. That means the changeless spring-like climate causes by the Kunming quasi. Kunming quasi also named as Yungui quasi. (Yungui------the Yunnan-Guizhou Plateau) It is generally formed by the interaction of metamorphic continental polar air and Southwest air current which was stuck into the Yunnan-Guizhou Plateau. The clouds would be low and thin that makes the weather sort of rainy as result. That is why people live in Kunming always say "the sunny days in Kunming will never last long" as a joke. In fact, about 50% of the Kunming quasi will mostly formed during winter. Its frontal surface locates between Kunming and Guiyang in the direction of Northwest----Southeast. January and April are the peak seasons of Kunming quasi but almost disappear in July and August which is no more than 3 days in average. In fact, most of the Kunming quasi-stationary front were not quite stationary at all. Instate, they are waving in a limit area. What is more, it will move towards South in the daytime and back up north at night. The weaker Kunming quasi is, the more intensely movements it will be. The slope of the frontal surface would be considering as small which usually less then 1/250 but great area that it will cover. The temperature, sunshine, wind and relative humidity are discontinuous between the frontal surfaces. The same situation as the climates. For example, most of the area in the Southwest of frontal surface is under the effect of Single warm air which has a wide expanse of clear, sunlit sky in a higher average temperature as 7.7℃ in January while the other side is under the cold air zone where has both 5.0℃ as average temperature and rainy weather that rains more than 15 days. Since the cold air become stronger, the frontal surface of Kunming quasi will locate in the west of Kunming. The east part of Yunnan is under the frontal surface. The temperature decreases dramatically which brings the rainfall. Therefor forms the special climate in Yunnan which is spring-like all the year round. A local folk adage "The vernal climate that without neither scorching nor severe cold" could be the best description of the result of the effect that produces by the Kunming quasi-stationary front.

Reference:

www.baike.baidu.com/view/1267582.htm