Scientific Advances and Weather Services of the China Meteorological Administration’s National Forecasting Systems during the Beijing 2022 Winter Olympics

Since the Beijing 2022 Winter Olympics was the first Winter Olympics in history held in continental winter monsoon climate conditions across complex terrain areas,there is a deficiency of relevant research,operational techniques,and experience.This made providing meteorological services for this event particularly challenging.The China Meteorological Administration(CMA)Earth System Modeling and Prediction Centre,achieved breakthroughs in research on short-and medium-term deterministic and ensemble numerical predictions.Several key technologies crucial for precise winter weather services during the Winter Olympics were developed.A comprehensive framework,known as the Operational System for High-Precision Weather Forecasting for the Winter Olympics,was established.Some of these advancements represent the highest level of capabilities currently available in China.The meteorological service provided to the Beijing 2022 Games also exceeded previous Winter Olympic Games in both variety and quality.This included achievements such as the“100-meter level,minute level”downscaled spatiotemporal resolution and forecasts spanning 1 to 15 days.Around 30 new technologies and over 60 kinds of products that align with the requirements of the Winter Olympics Organizing Committee were developed,and many of these techniques have since been integrated into the CMA’s operational national forecasting systems.These accomplishments were facilitated by a dedicated weather forecasting and research initiative,in conjunction with the preexisting real-time operational forecasting systems of the CMA.This program represents one of the five subprograms of the WMO’s high-impact weather forecasting demonstration project(SMART2022),and continues to play an important role in their Regional Association(RA)II Research Development Project(Hangzhou RDP).Therefore,the research accomplishments and meteorological service experiences from this program will be carried forward into forthcoming highimpact weather forecasting activities.This article provides an overview and assessment of this program and the operational national forecasting systems.

Effectiveness of groundwater extraction in Beijing since the ingauration of the first phase of the South-to-North Water Diversion Project, China

This study assess the effectiveness of groundwater pressure extraction in Beijing since the opening of the first phase of the South-to-North Water Diversion Project,using survey and evaluation methods.Firstly,an analysis of water consumption structure and the usage of diverted river water in Beijing in recent years was conducted.Secondly,the volume of groundwater pressure extraction in Beijing after the 33 project's inauguration was examined,revealing a decrease from 1.96 billion m^(3) in 2014 to 1.35 billion m^(3) in 2020.The proportion of water supply reduced from 52.3%in 2014 to 33.3%in 2020,leading to an optimized water supply structure.By the end of 2020,groundwater pressure extraction in Beijing is estimated at 446 million m3,with a substantial reduction in over-exploitation of groundwater.Groundwater resources have been effectively replenished,and the strategic reserve capacity has been enhanced.Furthermore,this study evaluates the change in groundwater levels as an indicator of the effectiveness of pressure extraction.The declining trend of groundwater levels in Beijing has been effectively mitigated,and there has been a consistent rebound in groundwater levels over the past five years.

The Epidemiological Characteristics of Beijing Lineage Mycobacterium tuberculosis from a National Referral Center in China

Our study was to investigate the epidemiological characteristics of M.tuberculosis from a national tuberculosis referral center in China. All strains isolated from TB patients, were genotyped by the RD105 deletion, 8 and 51 SNP loci and VNTR. The high differentiation SNPs of modern Beijing strains were analyzed for protein function and structure. 413 M. tuberculosis were included. Of 379 Beijing lineage M. tuberculosis, ＇modern＇ and ＇ancient＇ strains respectively represented 85.5% （324/379） and 14.5% （55/379）. Rv2494 （V48A） and Rv0245 （Sl03F） were confirmed as high differentiation SNPs associated with modern strains. In a word, Modern Beijing lineage M.tuberculosis was dominant and the structural models suggested that modern sub-lineage may more easily survive in ＇extreme＇ host condition.

Using Impervious Surfaces to Detect Urban Expansion in Beijing of China in 2000s

The change of impervious surface area(ISA) can effectively reveal the gradual process of urbanization and act as a key index for monitoring urban expansion. Experiencing rapid growth of the built environment in the 2000 s, urban expansion of Beijing has not been fully characterized through ISA. In this study, Landsat TM images of Beijing in 2001 and 2009 were obtained, and the eight-year urban expansion process in Beijing was analyzed using the ISA extracted by means of the vegetation-imperious surface-soil(V-I-S) model. From the spatial variation in ISA, the ring structure of urban expansion in Beijing was significant during the study period, with decreasing urban density from the city center to the periphery. In the ring road analysis, the most dramatic changes of ISA were found between the fifth ring and the sixth ring. This area has experienced the most new residential development, and is currently the main source of urban expansion. The typical profile lines revealed the directional characteristics of urban expansion. The east-west profile was the most urbanized axes in Beijing, while ISA change in the east-north profile was more significant than in the other five profiles. Moreover, the transition matrix of ISA levels revealed an increase in urban density in the low density built areas; the Moran′s I index showed a clear expansion of the central urban area, which spread contiguously; and the standard deviational ellipse indicated the northeast was the dominant direction of urban expansion. These findings can provide important spatial control guidelines in the next round of national economic and social development planning, overall urban and rural planning, and land use planning.

Perspectives and Challenges of Family Members in Providing Mental Support to Cancer Patients:A Qualitative Study in Beijing,China

This study explores the perspectives and challenges faced by family members providing mental support to cancer patients in Beijing,China.The primary objective is to understand the emotional and practical roles family members undertake and the difficulties they encounter.Utilizing a qualitative research design,data were collected through semi-structured interviews with family caregivers of cancer patients.Thematic analysis revealed several key themes:the dual burden of emotional support and caregiving responsibilities,the impact on daily life and personal well-being,the role and effectiveness of external support systems,perceptions of medical staff support,and the common challenges and conflicts faced in caregiving.The findings highlight the critical need for comprehensive support systems that address both the emotional and practical needs of family caregivers.Recommendations for enhancing family-centered support programs in oncology settings are discussed.

SWCN in Beijing, P. R. of China

The Second World Congress on Non-minerals was held in Beijing, People’s Republic of China, from 17 to 21 of October, 1989. The central theme of the Congress was "Effective Development and Utilization of Non-metallic Minerals". Specific technical programs are 1). The development of industrial Mineral based industrits (including the production of building materials in the developing countries); 2). The economic and technical evaluation of industrial mineral raw material and deposits; 3). Mining, processing and comprehensive

An Introduction to China University of Geosciences(Beijing)

China University of Geosciences（Beijing）（CUGB）,is one of the leading universities listed in"Project 211,"a national program that offers more government financial support for the advancement of 100 top national universities in 21st-century China.CUGB is also supported by the Ministry of Education for its uniquely strong strengths in geological disciplines.CUGB could be traced back to the former Beijing College of Geology,which was founded in 1952 by combining the Departments of Geology from Peking University, Tsinghua University,Tianjin University and Tangshan Railway College.In 1987,the predecessor of CUGB was renamed China University of Geosciences（Beijing）.

The Founding of ICC China in Beijing

On January 24, 1995, the ICC China was founded in Beijing. Vice-Premier Li Lanqing of the State Council and ICC Secretary-General Rouher attended the conference and delivered speeches to about 250 representatives from China’s related departments, ICC China and local subchambers of China Chamber of International Commerce. On behalf of the Chinese government, Mr. Li Lanqing gave

Opening Speech at the 1991 China Tibetology Seminar in Beijing

Honorable delegates,Ladies and gentlemen: I have the honor to announce the 1991 China Tibetology Seminar in Beijing, with the supportof personalities from various circles, now open. About eighty scholars have come to attend the Sem-inar. They come from various parts of China, Hong Kong and Taiwan, and from foreign

Mercedes-Benz China Fashion Week(2017 Spring/Summer)Opening Reception in Beijing

On October 24,the opening ceremony of the MercedesBenz China Fashion Week was held in Beijing’s China Central Place.The Chinese Textile Industry Association,the China Fashion Association,the Beijing Textile Industry Association and other relevant leaders attended the ceremony,and the Italian National Fashion Association honorary Chairman,European Design Center honorary president Mr.

Closing Speech at the 1991 China Tibetology Seminar in Beijing

Distinguished Participents and Guests: The 1991 China Tibetology Seminar in Beijing organized by the China Tibetology ResearchCenter was concluded today. I have been following, with interest, your four days’ seminar whichhas been a complete success thanks to the joint efforts and cooperation on the part of scholars attend-ing the seminar. Both Chinese and foreign scholars have conducted an in --depth study of the Ti-

New Looks of an Old Store—Notes on China Beijing Tong Ren Tang Holdings Corp.

It is not exaggerating to say that almost everybody in China knows about Tong Ren Tang, a traditional Chinese medicine drugstore in Beijing. And even many foreigners, who have never set foot on Chinese soil, know that there is the Great Wall in China and a Tong Ren Tang in Beijing. Tong Ren Tang, which was opened in the eighth year (1669) of

Impact of Urban 3D Morphology on Particulate Matter 2.5(PM2.5) Concentrations:Case Study of Beijing, China

Urban particulate matter 2.5(PM2.5)pollution and public health are closely related,and concerns regarding PM2.5 are widespread.Of the underlying factors,the urban morphology is the most manageable.Therefore,investigations of the impact of urban three-dimensional(3D)morphology on PM2.5 concentration have important scientific significance.In this paper,39 PM2.5 monitoring sites of Beijing in China were selected with PM2.5 automatic monitoring data that were collected in 2013.This data set was used to analyze the impacts of the meteorological condition and public transportation on PM2.5 concentrations.Based on the elimination of the meteorological conditions and public transportation factors,the relationships between urban 3D morphology and PM2.5 concentrations are highlighted.Ten urban 3D morphology indices were established to explore the spatial-temporal correlations between the indices and PM2.5 concentrations and analyze the impact of urban 3D morphology on the PM2.5 concentrations.Results demonstrated that road length density(RLD),road area density(RAD),construction area density(CAD),construction height density(CHD),construction volume density(CVD),construction otherness(CO),and vegetation area density(VAD)have positive impacts on the PM2.5 concentrations,whereas water area density(WAD),water fragmentation(WF),and vegetation fragmentation(VF)(except for the 500 m buffer)have negative impacts on the PM2.5 concentrations.Moreover,the correlations between the morphology indices and PM2.5 concentrations varied with the buffer scale.The findings could lay a foundation for the high-precision spatial-temporal modelling of PM2.5 concentrations and the scientific planning of urban 3D spaces by authorities responsible for controlling PM2.5 concentrations.

Changes in China--Beijing is seeking less energy-intensive economic growth ＆ a less carbon-intensive energy mix and its impact over oil ＆ gas supply

Having experienced over 30 years of rapid growth,China’s economic development is entering a new normal featured by an ever optimizing economic structure shifting from high-speed to medium-high speed growth,and from factor-driven to innovation-driven pattern.In adapting

2017 Symposium on International Developments and China＇s Diplomacy Held in Beijing

The 2017 Symposium on International Developments and China's Diplomacy,coorganized by CIIS and China Foundation for International Studies(CFIS),was held in Beijing on December 9,2017.Foreign Minister Wang Yi attended the opening and delivered a keynote speech entitled"China's

The Pubic Speech of ISO President's Visit to China Held in Beijing

In order to promote China to take part in the activities of international standardization and improve the standardization level of China, Mr. Oliver Smoot, President of ISO, made a public speech on international standardization of the global economy at the invitation of SAC (Standardization Administration of China) on Nov. 1st.

For new balance and new development 2017 China Textile Innovation Conference was successfully held in Beijing

2017 China Textile Innovation Conference was held in Beijing On December 7th.The conference was sponsored by China National Textile and Apparel Council（CNTAC）,supported by Ministry of Industry and Information Technology of the People’s Republic of China,and co-organized by China Textile Information Center,China Textiles Development Center,China Fashion Creative Valley,COLORO？,Rieter（China）Textile Instruments Co.,Ltd.,