Winter Olympic mountain track core areas to achieve “100-meter level, minute level” weather forecast

2022-04-28 0 By

Modern Express news on February 5th, 2022 Beijing Press Center held a special press conference on urban service guarantee.Ji Chongping, chief engineer of the Beijing Meteorological Bureau, said that in order to serve the winter Olympics, the meteorological department has for the first time realized the operational weather forecasting capability of “100-meter level, minute level”.Ji Chongping said that the winter Olympics meteorological science and technology innovation achieved two “firsts”.First, for the first time in China, the multi-dimensional comprehensive meteorological observation experiment under complicated terrain in winter was organized and carried out in mid-latitude mountainous areas.The three-dimensional and encrypted meteorological observation network of Yanqing and Zhangjiakou has been constructed, which provides fine weather “background” data for the research and development of meteorological forecast technology and practical services of the Winter Olympics, and also lays a foundation for deepening the research of mountain meteorology in China.Second, for the first time, it has realized the operational weather forecasting capability of “100-meter and minute-level”.Based on numerical prediction, machine learning and other technologies, a winter Olympics weather forecast product covering 100 meters grid and updated in 10 minutes has been formed, which greatly improves the forecast accuracy of key weather elements of the Winter Olympics and effectively supports the forecast service team to carry out fine weather services.JiChongPing focus on “hundreds of meters, minutes” specific meaning of “hundreds of meters, minutes” forecast is refers to in the hill country of the games are playing the core region, can provide a grid spacing of 100 meters, the precise time to 10 minutes at a time of forecast, because to meet the demand of the games are high precision near short-term forecasting service, meteorological department under the Ministry of Science and Technology support,Work carried out related research, mainly is to use encryption automatic station, radar data and high resolution data, adopted a series of technical methods, such as data fusion, produces can cover the games mountain division hundreds of meters, updated once every 10 minutes, the weather elements such as temperature, humidity, wind, precipitation forecast.According to the latest data analysis, by the 20th, the temperature of Beijing, Yanqing, Zhangjiakou three competition areas is close to the usual, during this period there are mainly the following three cold air activities, around February 7, there is weak cold air influence, there are 3, 4 north wind;From February 11 to 13, there will be weak cold air, rain and snow;Around February 18, there will be cold air activity.Due to a long time, the above forecast is still uncertain, the meteorological department will closely track the weather and climate situation changes, timely update the forecast conclusion.(Photo provided by Beijing News Center) Modern Express + special correspondent is Zhong Yin, Zhang Jin and Qian Nianqiu