China is a huge country (see overlay map) with many different climates and types of landscape. Traveling along the Golden Route (Beijing, Xian, Shanghai, Guangzhou) is like visiting Ottawa, Chicago, Washington DC and Florida all in one trip.
Therefore, the weather range and variance can likewise be extreme…
|Western suits, jackets, sports coats, woolen jackets, long sleeve shirts and travel shoes.|
|Summer:||22°C and above |
(reaching ~40°C in the south)
|T-shirts, short sleeve shirts, skirts, sandals, caps, rain wear.|
Extremely humid in the south half of China
|Western suits, jackets, sports coats, light woolen sweaters, rain wear and travel shoes.|
|Winter:||10°C or lower|
(reaching ~25°C in the north)
|Overcoat, cotton clothes, lined coats. In very cold areas a cap & gloves.|
Extremely cold in the north half of China
Beijing weather engineering
The Beijing Weather Modification Office (北京市人工影响天气办公室) is a unit of the Beijing Meteorological Bureau tasked with weather control in Beijing and its surrounding areas. The office supervises a weather control effort, believed to be the world’s largest; it employs over 40,000 people nationwide, who according to MIT, track the weather via satellites, planes, radar, and an IBM p575 supercomputer that executes 9.8 trillion floating point operations per second, calculating when and where to use their dedicated weather changing aircraft and an array of 20 artillery and rocket-launch sites around Beijing. The city’s engineers shoot and spray silver iodide and dry ice into incoming clouds that are still far enough away that their rain can be flushed out and conditions change before they reach Beijing. Finally, heavy clouds are seeded with a coolant made from liquid nitrogen which makes droplets less likely to fall, and temperature can be reduced.
They can now lower temperatures in summer, reducing electricity consumption, stop rain, turn the sky blue, and when implemented simultaneously with temporary forced factory closures, reduce pollution.
The work of the office is officially aimed at hail storm prevention or making rain to end droughts; but they have also induced precipitation for purposes of firefighting or counteracting the effect of severe dust storms, as they did in the aftermath of one storm in April 2006 which dropped 300,000 tonnes of dust and sand on the city and was believed to have been the largest in five years. Their technology was used to create snow on New Year’s Day in 1997, ensure that the 2008 Summer Olympics were free of rain, creating a snowstorm in November 2009, and now regularly ensuring blue skies, cool air with no rain and no pollution prior to major events such as National Day, May Day, visiting international dignitaries and National People’s Congress.