Who can tell me something about Changchun, the more detailed the better?

Changchun is known as "Automobile City", "Film City", "Photoelectric City", "Science and Technology City", "University City", "Forest City" and "Sculpture City", and is the birthplace of automobile, film, optics, biopharmaceuticals, rail passenger cars and other industries in China. China FAW Group, located in Changchun, is the largest research and production base of automobile industry in China, and its automobile output accounts for one fifth of the national total output. Changchun Bus Factory, founded in 1954, is a large-scale state-owned railway passenger car manufacturing enterprise under the first five-year plan period, a large-scale backbone enterprise engaged in locomotive and rolling stock manufacturing under the Ministry of Railways Industrial Corporation, and the largest production base of railway passenger cars and subway electric buses in China. Last year, the passenger car output ranked first in the world. Changchun has now formed an industrial system with transportation equipment manufacturing as the main body; Changchun is one of the important commodity grain bases in China, with the total grain output, commodity rate and commodity rate ranking first among big cities in China. Changchun has a solid foundation in science and technology education, with 32 universities, 100 independent research and development institutions and 35 academicians from China Academy of Sciences and China Academy of Engineering. Its research in optoelectronics, laser technology, polymer materials and bioengineering occupies a leading position in China, and some of them have reached the international advanced level. Changchun film studio, located in the southwest of Changchun, is the "cradle" of the new China film industry. In order to promote the film culture, the Changchun Municipal Government has held the Changchun Film Festival every two years since 1992, inviting domestic and foreign film celebrities and film manufacturers to gather in Changchun to create brilliance together. The greening of Changchun ranks first among Asian cities, and the urban greening coverage rate reaches nearly 80%. It is an ideal summer resort with tree-lined trees and cool climate in summer. In winter, the trees are well-proportioned and the branches are beautiful, which is a northern scenery. The famous Jingyuetan forest tourist area covers a total area of 478.7 square kilometers and has the largest artificial forest in Asia. There are many tourist attractions in the city and more than ten tourist hotlines. Changchun is an open city along the border and enjoys the relevant preferential policies of the national coastal open city. New Changchun is like a pearl embedded in the hinterland of China's northeast plain. In the historical development and changes of modern cities for more than 200 years, it ranks among the big cities in China with its youth and beauty! The forgotten ancient history of Changchun, similar to the weather-beaten old man, tells the story of stumbling, ups and downs, great joy and great sorrow here. From the ancient capital to the new city, two different forces, distant and young, are destined to be brilliant in Changchun!

Changchun has a pleasant climate. The temperature is 2-3 degrees higher in winter and 3-5 degrees lower in summer than in the same latitude area. No matter from Harbin to the south or from Shenyang to the north, you will feel the subtle changes in temperature. There is no dry and cold in winter and no hot summer in Changchun, so Changchun is a veritable "spring city". Changchun City is located in the hinterland of Songliao Plain in the northeast of China, with an altitude of 250-350 meters and a flat and open terrain. It belongs to the continental monsoon climate zone, and it is in the transition zone from humid area to sub-arid area in the national dry and wet climate zoning. The temperature rises from east to west, and the precipitation decreases from east to west. Spring is dry and windy, summer is wet and rainy, autumn is crisp, and winter is cold and long. It has four distinct seasons, the same season of rain and heat, and moderate humidity, which provides a good climate environment for human development and utilization of nature. Due to the coordination of geographical location, topographic structure and atmospheric circulation, it has the following basic characteristics: four distinct seasons. Spring is short, dry and windy; Summer is warm and rainy, and there is not much hot weather; It is cool in autumn, and the temperature difference between day and night is large; Winter is long and cold. Monsoon is remarkable, rain and heat are in the same season. In winter, under the control of strong Mongolian high pressure, the climate is cold and dry. In summer, the western Pacific subtropical high often meets the cold air moving southeast of Lake Baikal, and the precipitation is rich and concentrated. The climate is continental, with a large temperature difference throughout the year. The temperature in winter is lower than that in the same latitude area, but higher than that in summer. The climate changes from east to west, with moderate heat and humidity. Changchun is located in the transition zone from the eastern mountainous area of Jilin Province to the Songnen Plain in the west, so it has the characteristics of the transition from humid climate in the eastern mountainous area to semi-arid climate in the west. The transitional climate makes Changchun have abundant sunshine, better heat conditions than the east and better rain conditions than the west, which provides good climatic conditions for agricultural production. The annual average temperature in Changchun is 4.8℃, the highest temperature is 39.5℃, the lowest temperature is -39.8℃, and the sunshine time is 2688 hours. Southeast winds prevail in summer, and there is moisture supplemented by Bohai Sea. The annual average precipitation is 522 ~ 6 15mm, and the summer precipitation accounts for more than 60% of the annual precipitation. The average temperature in the hottest month (July) is 23℃. Autumn can form sunny and warm weather for several days, with large temperature difference and lower wind speed than spring.

Optimal travel time

Although the east and south of Changchun are not far from the ocean, the role of summer monsoon is weakened due to the blocking of Changbai Mountain. The west and north are flat Songliao Plain, and the Siberian polar continental air mass is unimpeded, which is greatly influenced by winter wind. Therefore, the temperature changes obviously throughout the year, and the four seasons are distinct: dry and windy in spring, short and warm in summer, obviously large temperature difference in autumn and long and cold in winter. In spring, summer and autumn, except for a short period of high temperature in July and August, the weather in Changchun is mostly mild and pleasant. May-June in spring, 9-65438+1October in autumn, the temperature is suitable, and the weather is sunny most of the time, which is suitable for tourism and outdoor activities. In the winter of nearly half a year, colorful ice and snow sports can always make people forget the cold. Jingyuetan Ski Resort is one of the most famous ski resorts in China. At this time, the tree hanging and the rime also make Changchun look particularly enchanting in winter, which is a bit more unique than summer. 1-February is the coldest time and the most beautiful time in Changchun. The snowy Jingyuetan National Forest Park presents a beautiful snow forest scenery, which is also a good opportunity for skiers to try their hand. Tip: The temperature in Changchun in June 5438+0-February is basically below 0 degrees, so outdoor activities should pay attention to cold protection, especially the head, hands and feet. The light on the snow is strong, so the sun protection work should not be sloppy; In addition, wear sunglasses when skiing to avoid snow blindness.