Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Xuewu, Cheng"'
Autor:
Fenglei Chen, Yuchang Xun, Zelong Wang, Lifang Du, Haoran Zheng, Zhiqing Chen, Xuewu Cheng, Jiqin Wang, Fang Wu, Guotao Yang
Publikováno v:
地球与行星物理论评, Vol 55, Iss 1, Pp 131-137 (2024)
The Phase II of Chinese Meridian Project atmosphere wind-temperature-metal-constituents LiDAR at Mohe (122°E, 53°N) station uses a resonance fluorescence scattering mechanism to detect the metal layer composition in the upper atmosphere at 80-120 k
Externí odkaz:
https://doaj.org/article/95f5f90f3f2f4fe4be0ba5325f5ddf59
Autor:
Kaijun Ji, Yong Yang, Xin Lin, Jiaming Liang, Kaijie Ji, Jiqin Wang, Linmei Liu, Zhenwei Chen, Wei Wang, Xuewu Cheng, Faquan Li
Publikováno v:
Sensors, Vol 24, Iss 4, p 1152 (2024)
The transmission spectrum of a narrow-band interference filter is crucial and highly influenced by factors such as the temperature and angle, thus requiring precise and online measurements. The traditional method of measuring the transmission spectru
Externí odkaz:
https://doaj.org/article/e163646cb38845b880d36f763c9156fd
Autor:
Junfeng Wei, Linmei Liu, Xuewu Cheng, Yi Fan, Weiqiang Zhan, Lifang Du, Wei Xiong, Zhaoxiang Lin, Guotao Yang
Publikováno v:
Remote Sensing, Vol 16, Iss 3, p 536 (2024)
A prediction system was developed to determine the maximum Rayleigh altitude (MRA) by improving the automated detection of LIDAR power-on conditions and adapting to advancements in middle- and upper-atmosphere LIDAR technology. The proposed system wa
Externí odkaz:
https://doaj.org/article/317ea45a8f244edba6c84c15d9e76ce1
Autor:
Yuan Xia, Xuewu Cheng, Zelong Wang, Linmei Liu, Yong Yang, Lifang Du, Jing Jiao, Jihong Wang, Haoran Zheng, Yajuan Li, Faquan Li, Guotao Yang
Publikováno v:
Remote Sensing, Vol 15, Iss 21, p 5140 (2023)
Based on the resonance fluorescence scattering mechanism, a narrowband sodium (Na) lidar can measure temperature and wind in the mesosphere and lower thermosphere (MLT) region. By using a narrowband spectral filter, background light noise during the
Externí odkaz:
https://doaj.org/article/8e07e5b012054bc491886c496d10411b
Autor:
Lifang Du, Haoran Zheng, Chunlei Xiao, Xuewu Cheng, Fang Wu, Jing Jiao, Yuchang Xun, Zhishan Chen, Jiqin Wang, Guotao Yang
Publikováno v:
Remote Sensing, Vol 15, Iss 18, p 4566 (2023)
We report an all-solid-state narrowband lidar system for the simultaneous detection of Ca and Ca+ layers over Yanqing (40.41°N, 116.01°E). The uniqueness of this lidar lies in its transmitter, which is based on optical parametric oscillation (OPO)
Externí odkaz:
https://doaj.org/article/283cd1ae8c204a59b7752889b9546da3
Autor:
Shaohua Gong, Yuru Wang, Jianchun Guo, Weipeng Chen, Yuhao Zhang, Faquan Li, Yuchang Xun, Jiyao Xu, Xuewu Cheng, Guotao Yang
Publikováno v:
Remote Sensing, Vol 14, Iss 19, p 4938 (2022)
Based on long-term lidar (light detection and ranging) observations at Yanqing (40.5°N, 116°E) and Pingquan (41°N, 118.7°E), cloud events occurred in the vicinity of the stratopause above Beijing were reported for the first time. These events occ
Externí odkaz:
https://doaj.org/article/6c98cbcac18e45ca8013e2058af2ec10
Autor:
Yuchang Xun, Guotao Yang, Chiao‐Yao She, Jihong Wang, Lifang Du, Zhaoai Yan, Yong Yang, Xuewu Cheng, Faquan Li
Publikováno v:
Geophysical Research Letters, Vol 46, Iss 4, Pp 1892-1899 (2019)
Abstract In 2011, Chu et al. reported the observation of neutral Fe layers reaching 155 km. Since then, there are five additional reports of layers extending above 130 km to as high as 170 km, none from central middle latitudes (35°–55°), a large
Externí odkaz:
https://doaj.org/article/c0961a97b8f74c22ad670fdc31ea0a13
Autor:
Xu Zou, Guotao Yang, Paulo Prado Batista, Jihong Wang, Vania F. Andrioli, Xuewu Cheng, Jing Jiao, Lifang Du, Tiemin Zhang, Hong Yang, Zelong Wang, Yuan Xia
Publikováno v:
Remote Sensing, Vol 14, Iss 19, p 4798 (2022)
Based on the established LIDAR chain along the 120°E meridian in China, the gravity wave (GW) activity between 80 and 105 km and the seasonal behavior of temporal and spatial spectra at Beijing, Hefei and Hainan were studied with three years of cont
Externí odkaz:
https://doaj.org/article/a8369d1763e8469385a74fef2c317b4f
Autor:
Yuan Xia, Jing Jiao, Satonori Nozawa, Xuewu Cheng, Jihong Wang, Chunhua Shi, Lifang Du, Yajuan Li, Haoran Zheng, Faquan Li, Guotao Yang
Publikováno v:
Atmospheric Chemistry and Physics. 22:13817-13831
Based on the full-diurnal-cycle sodium (Na) lidar observations at Beijing (40.41∘ N, 116.01∘ E), we report pronounced downward extensions of the Na layer bottomside to below 75 km near mid-December 2014. Considerable Na atoms were observed even a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::923e4611cc89bb7b8ebd999ff93b0dcd
https://doi.org/10.5194/acp-22-13817-2022
https://doi.org/10.5194/acp-22-13817-2022
Publikováno v:
Solar-Terrestrial Physics, Vol 3, Iss 2, Pp 60-64 (2017)
A double-laser beam lidar to measure potassium (K) layer at Beijing (40.5° N, 116.2° E) was successfully developed in 2010. The parameters of sporadic Ks layers and their distributions were given. The seasonal distribution of Ks occurrence frequenc
Externí odkaz:
https://doaj.org/article/07ac6c8b4e3c42cda9f92d5c42324237