SHIJIAZHUANG, Feb. 28 (Xinhua) -- Four meteorological projects have been conducted in the Zhangjiakou competition zone of the 2022 Beijing Olympic Winter Games and will be completed this year, local authorities said Thursday.

"Because skiing events are heavily affected by the weather, meteorological services are essential for ensuring a successful Winter Olympics," said Guo Hong, vice director of Zhangjiakou Meteorological Observatory.

The four projects consist of comprehensive meteorological observation, refined forecast and prediction, meteorological service and a trial project for analyzing the effect of artificial weather.

At present, 29 meteorological observatories have been built in the Zhangjiakou competition venues to provide support for the forecast service and live data for the Games.

Meanwhile, forecast and service platforms are being developed and meteorological forecasters are being trained.

36 elite technical personnel from across China have undertaken training in Chongli district, where the competition venues are located, in order to familiarize themselves with the local climate, summarize the forecast methods and improve their forecasting ability.