The Chinese Meridian Project(CMP)is the Space Environment Ground Based Comprehensive Monitoring Network of China,a national major science and technology infrastructure project.The CMP consists of the Space Environment...The Chinese Meridian Project(CMP)is the Space Environment Ground Based Comprehensive Monitoring Network of China,a national major science and technology infrastructure project.The CMP consists of the Space Environment Monitoring System,Data Communication System,and Science Application System.Its construction has been divided into two steps:the PhaseⅠwas from 2008 to 2012;the PhaseⅡstarted at the end of 2019,expected to be completed at the end of 2023.Beyond 2023,the CMP as a whole will be in operation to make observations.This report introduces the construction progress of CMP PhaseⅡin the past two years,covering the construction progress of both the Data Communication System and the Science Application System.As for the Space Environment Monitoring System,this report mainly gives an introduction to the construction progress of large-scale advanced monitoring equipment,such as,the solar radio telescope,interplanetary scintillation telescope,incoherent scatter radar,high frequency radar,MST radar,and large-aperture Helium Lidar.In addition,this paper presents the construction plan for the next two years and the future outlook as well.展开更多
This article summarizes the researches on the middle and upper atmosphere by Chinese scientists in 2010-2012.The focuses are placed on the advances in construction of ground-based remote sensing facilities,the mean st...This article summarizes the researches on the middle and upper atmosphere by Chinese scientists in 2010-2012.The focuses are placed on the advances in construction of ground-based remote sensing facilities,the mean state and long-term changes in the middle atmosphere circulation, the prevailing dynamical processes,and the coupling of the middle atmospheric layers.展开更多
In this report we summarize the research results by Chinese scientists in 2018–2020.The focuses are placed on the researches of the middle and upper atmosphere,specifically the researches on atmospheric structure and...In this report we summarize the research results by Chinese scientists in 2018–2020.The focuses are placed on the researches of the middle and upper atmosphere,specifically the researches on atmospheric structure and composition,climate and chemistry-climate coupling and climate modelling,dynamics in particular those inducing the coupling of the atmospheric layers.展开更多
This report reviews the researches for the middle and upper atmosphere in 2020-2022 by Chinese scientists.The report consists of five parts introducing primarily the results from the aspects of the development of infr...This report reviews the researches for the middle and upper atmosphere in 2020-2022 by Chinese scientists.The report consists of five parts introducing primarily the results from the aspects of the development of infrastructure,the structure and composition,the climate and modeling,the dynamics for the middle and upper atmosphere,and Coupling between Stratosphere and Troposphere,respectively.展开更多
In this paper we summarize the research results by Chinese scientists in 2016–2018. The focuses are placed on the researches of the middle and upper atmosphere, specifically the researches associated with groundbased...In this paper we summarize the research results by Chinese scientists in 2016–2018. The focuses are placed on the researches of the middle and upper atmosphere, specifically the researches associated with groundbased observation capability development, dynamical processes, and properties of circulation and chemistryclimate coupling of the middle atmospheric layers.展开更多
Temperature profiles provided by the Constellation Observing System for Meteorology, Ionosphere and Climate （COSMIC） global positioning system （GPS） satellite constellation were used to study an eight-year series ...Temperature profiles provided by the Constellation Observing System for Meteorology, Ionosphere and Climate （COSMIC） global positioning system （GPS） satellite constellation were used to study an eight-year series （2007 to 2015） of gravity wave （GW） potential energy in the stratosphere （18-30 kin） around the Tibetan Plateau （TP）. We found that with increasing altitude, the GW potential energy （Ep） values in the stratosphere caused by convection decreases. The importance of GWs that are stimulated by topography is enhanced in this area. In the TP, which was considered to lack strong topographical GW activity, clear activity existed in the spring and winter of all studied years. Based on the latitudinal zone of the TP, the distribution of GW potential energy is highly consistent with the elevation of the local topography. The activities of topographical GWs are strongly filtered as they propagate upward to the area of zero speed wind. The analysis indicates that in the TP, clear orographic GW excitation exists and propagates upward to the upper stratosphere, where it is greatly influenced by the wind.展开更多
文摘The Chinese Meridian Project(CMP)is the Space Environment Ground Based Comprehensive Monitoring Network of China,a national major science and technology infrastructure project.The CMP consists of the Space Environment Monitoring System,Data Communication System,and Science Application System.Its construction has been divided into two steps:the PhaseⅠwas from 2008 to 2012;the PhaseⅡstarted at the end of 2019,expected to be completed at the end of 2023.Beyond 2023,the CMP as a whole will be in operation to make observations.This report introduces the construction progress of CMP PhaseⅡin the past two years,covering the construction progress of both the Data Communication System and the Science Application System.As for the Space Environment Monitoring System,this report mainly gives an introduction to the construction progress of large-scale advanced monitoring equipment,such as,the solar radio telescope,interplanetary scintillation telescope,incoherent scatter radar,high frequency radar,MST radar,and large-aperture Helium Lidar.In addition,this paper presents the construction plan for the next two years and the future outlook as well.
文摘This article summarizes the researches on the middle and upper atmosphere by Chinese scientists in 2010-2012.The focuses are placed on the advances in construction of ground-based remote sensing facilities,the mean state and long-term changes in the middle atmosphere circulation, the prevailing dynamical processes,and the coupling of the middle atmospheric layers.
文摘In this report we summarize the research results by Chinese scientists in 2018–2020.The focuses are placed on the researches of the middle and upper atmosphere,specifically the researches on atmospheric structure and composition,climate and chemistry-climate coupling and climate modelling,dynamics in particular those inducing the coupling of the atmospheric layers.
文摘This report reviews the researches for the middle and upper atmosphere in 2020-2022 by Chinese scientists.The report consists of five parts introducing primarily the results from the aspects of the development of infrastructure,the structure and composition,the climate and modeling,the dynamics for the middle and upper atmosphere,and Coupling between Stratosphere and Troposphere,respectively.
文摘In this paper we summarize the research results by Chinese scientists in 2016–2018. The focuses are placed on the researches of the middle and upper atmosphere, specifically the researches associated with groundbased observation capability development, dynamical processes, and properties of circulation and chemistryclimate coupling of the middle atmospheric layers.
基金supported by the National Natural Science Foundation of China (Grant Nos.41322029,41474129 & 41421063)the Project of Chinese Academy of Sciences(Grant Nos.KJCX2-EW-J01 & KZZD-EW-0101)+1 种基金Youth Innovation Promotion Association of the Chinese Academy of Sciences(Grant No.2011324)the Fundamental Research Funds for the Central Universities
文摘Temperature profiles provided by the Constellation Observing System for Meteorology, Ionosphere and Climate （COSMIC） global positioning system （GPS） satellite constellation were used to study an eight-year series （2007 to 2015） of gravity wave （GW） potential energy in the stratosphere （18-30 kin） around the Tibetan Plateau （TP）. We found that with increasing altitude, the GW potential energy （Ep） values in the stratosphere caused by convection decreases. The importance of GWs that are stimulated by topography is enhanced in this area. In the TP, which was considered to lack strong topographical GW activity, clear activity existed in the spring and winter of all studied years. Based on the latitudinal zone of the TP, the distribution of GW potential energy is highly consistent with the elevation of the local topography. The activities of topographical GWs are strongly filtered as they propagate upward to the area of zero speed wind. The analysis indicates that in the TP, clear orographic GW excitation exists and propagates upward to the upper stratosphere, where it is greatly influenced by the wind.
