论文部分内容阅读
常年三月,云南高原已盛行干热南支西风急流,天气很快回暖,位于北热带的西双版纳也进入了干热季。整个1985/86年冬(12—2月),西双版纳盛行西风急流,基本不受北方冷空气活动的影响,一直维持辐射晴天。以景洪为例,虽最低温度已降至6.8℃(12月26日),但白天温度很高,属偏暖年份。尤其立春后温度回
In perennial March, the Yunnan Plateau has prevailed dry-hot south-branch westerly jet stream and the weather is getting warmer. The Xishuangbanna in the northern tropics has also entered a dry-hot season. Throughout the winter of 1985/86 (December-February), the prevailing westerly jet stream in Xishuangbanna was basically free from the cold air activities in the north and maintained its sunny day. Taking Jinghong as an example, although the minimum temperature has dropped to 6.8 ℃ (December 26), the temperature during the day is very high, which is a warmer year. Especially after the spring back to temperature