Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Cryospheric Science, as an emerging interdisciplinary research field combining natural science and humanity, aims to understand nature’s law, serve human society and promote sustainable development. In recent years, by deepening the understanding of the cryosphere elements and the whole sphere, and by expanding the application research of cryospheric science, the Chinese community of cryospheric science has developed by leaps and bounds and realized the crossover from the traditional basic research to serving the major national needs, which marks the increasing maturity of the discipline. The Beijing 2022 Olympic Winter Games is a major landmark event at an important historical time in China. The special need of using snow and ice as the sports interface has led China’s cryosphere scientific team to focus on tackling key technical links of icy snow physics since 2016, and promoted the development of China’s cryosphere scientific application research in the past five years. In view of the key technology of snow service for the Beijing 2022 Olympic Winter Games and the national needs of ice and snow economic development, a research team was formed by the State Key Laboratory of Cryospheric Science, in cooperation with scientific institutions (such as Beijing Normal University, Chinese Academy of Meteorological Sciences, and Harbin Sport University) and first-class enterprises in the domestic ice and snow industry (such as Yabuli Sports Training Base, National Alpine Skiing Centre, and Genting Snow Park). The team has solved many technical problems, including snow making, icy snow track making, snow quality prediction and snow storage. The team studied the impact of climate change on China’s ski tourism and how ice and snow tourism can help with the sustainable development of mountainous regions economy. It also trained the first batch of graduate students and core technicians of ski resorts in China. This paper summarizes the key snow-making technology of the Beijing 2022 Olympic Winter Games, and projects the development path of China’s ice and snow industry. It expounds the application and expansion of cryospheric science from the perspective of strategic thinking, knowledge building and practical innovation, and puts forward relevant thoughts and suggestions.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Ice is the core material in cryosphere, while the physical properties as well as physical processes of cryospheric components vary obviously because of difference in ice proportion and other material compositions. A large number of laboratorial studies and extensive field investigations in the middle and late of 20th century have determined the basic concepts of ice physical properties and the outlines of physical characteristics of these cryospheric components. With establishment of the cryospheric science system and requirement of the socio-economic development, research emphasis of cryospheric physics should be put on three aspects in future. One is further investigation of ice physical properties in details in order to provide accurate parameters for modelling, disaster prevention, and cryospheric service. Another is the laboratory simulation of combined processes of the cryosphere, especially entity and similarity simulations. The third is to promote the coupling between cryospheric models and further between models of cryosphere and other spheres.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： The cryosphere is one of the five major spheres of the climate system. It plays an important role in the earth system with its huge fresh water reserves, latent heat of phase transitions, greenhouse gases, and unique species and cultural structures. The formation, change mechanism, and process of cryosphere; the interactions with atmosphere, hydrosphere, biosphere, and lithosphere; the influences and adaptations of cryosphere change; the service functions for regional and global economy and society all together have rapidly developed into a new interdisciplinary discipline, which is called Cryosphere Science. Being consistent with the directions advocated by the “Future Earth” and the “Earth Commission”, the establishment and development of the scientific system of the Cryosphere Science is internationally forward looking.
Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2020-06-21 Cooperative journals: 《干旱区研究》
Abstract：基于祁连山西段老虎沟冰川站2010年1月至2011年10月大气颗粒物观测数据，通过HYSPLIT-4后向轨迹模式，使用轨迹聚类分析、潜在源贡献因子法(PSCF)和浓度权重轨迹法(CWT)，研究了老虎沟地区不同粒径颗粒物（PM10、PM2.5和PM1）传输路径及潜在源区的分布。结果表明：① 影响研究区的气流轨迹主要来自偏西方向，夏季还受到偏东气流方向的影响，3类颗粒物质量浓度存在显著的季节变化，表现为春、夏季节高、秋冬季节低的特点。② PSCF分析显示，春季颗粒物浓度高值与塔里木盆地东部和河西走廊西部等干旱半干旱地区沙尘向下游传输关系密切，夏季研究区颗粒物浓度高值的形成主要受到偏西方向的塔里木盆地周边、新疆北部、河西走廊西部等地区，以及研究区偏东方向的内蒙古西部、河西走廊、宁夏，甚至陕西西部等地区共同影响。③ 春季CWT高值区分布在研究区西北和偏西2个方向，夏季CWT高值除了偏西方向上贡献，还有来自偏东方向河西走廊等地区的贡献。
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