Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015
This study analyzed the variability and trends in precipitable water vapor (PWV) in North China from 1979 to 2015. The spatial distribution of annual mean PWV was generally characterized by two high PWV centers in Eastern China and the Tarim Basin and two low PWV centers in Northern Tibet and Qingha...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2017/7804823 |
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| author | Wang Peng Xie Tongchuan Dai Jiageng Sun Jingmin Wu Yanling Song Qingli Dai Xin Yuan Hongliang Song Dejun Zhao Jinrong |
| author_facet | Wang Peng Xie Tongchuan Dai Jiageng Sun Jingmin Wu Yanling Song Qingli Dai Xin Yuan Hongliang Song Dejun Zhao Jinrong |
| author_sort | Wang Peng |
| collection | DOAJ |
| description | This study analyzed the variability and trends in precipitable water vapor (PWV) in North China from 1979 to 2015. The spatial distribution of annual mean PWV was generally characterized by two high PWV centers in Eastern China and the Tarim Basin and two low PWV centers in Northern Tibet and Qinghai Province and in Inner Mongolia. The levels of seasonal mean PWV were highest in summer, followed by autumn and spring, and lowest in winter. The maximum monthly mean PWV occurred in July and August, while the minimum occurred in December to February. Increasing trends in PWV, with the trend magnitude ranging from 0.1 to 1.2 mm decade−1 over North China, were observed in the radiosonde, ERA-interim, and MERRA-2 PWV data from 1979 to 1999; but a slightly decreasing trend of −0.4 mm decade−1 from radiosonde was found in most regions of North China from 1979 to 2007. A monotonically increasing PWV trend was detected throughout North China between 1979 and 1999, with the maximum trend occurring in summer and the minimum occurring in winter. For the period of 1979–2007, a slightly but less marked decreasing trend was found at most stations in North China in all four seasons. |
| format | Article |
| id | doaj-art-89a14c35b1ef426eb6975280941294f9 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-89a14c35b1ef426eb6975280941294f92025-02-03T01:02:00ZengWileyAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/78048237804823Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015Wang Peng0Xie Tongchuan1Dai Jiageng2Sun Jingmin3Wu Yanling4Song Qingli5Dai Xin6Yuan Hongliang7Song Dejun8Zhao Jinrong9Longfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaLongfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaLongfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaLongfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaLongfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaLongfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaLongfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaHeilongjiang Meteorological Administration, Harbin 157399, ChinaHeilongjiang Meteorological Administration, Harbin 157399, ChinaLongfengshan Atmospheric Background Regional Station, Heilongjiang Meteorological Administration, Wuchang 150209, ChinaThis study analyzed the variability and trends in precipitable water vapor (PWV) in North China from 1979 to 2015. The spatial distribution of annual mean PWV was generally characterized by two high PWV centers in Eastern China and the Tarim Basin and two low PWV centers in Northern Tibet and Qinghai Province and in Inner Mongolia. The levels of seasonal mean PWV were highest in summer, followed by autumn and spring, and lowest in winter. The maximum monthly mean PWV occurred in July and August, while the minimum occurred in December to February. Increasing trends in PWV, with the trend magnitude ranging from 0.1 to 1.2 mm decade−1 over North China, were observed in the radiosonde, ERA-interim, and MERRA-2 PWV data from 1979 to 1999; but a slightly decreasing trend of −0.4 mm decade−1 from radiosonde was found in most regions of North China from 1979 to 2007. A monotonically increasing PWV trend was detected throughout North China between 1979 and 1999, with the maximum trend occurring in summer and the minimum occurring in winter. For the period of 1979–2007, a slightly but less marked decreasing trend was found at most stations in North China in all four seasons.http://dx.doi.org/10.1155/2017/7804823 |
| spellingShingle | Wang Peng Xie Tongchuan Dai Jiageng Sun Jingmin Wu Yanling Song Qingli Dai Xin Yuan Hongliang Song Dejun Zhao Jinrong Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015 Advances in Meteorology |
| title | Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015 |
| title_full | Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015 |
| title_fullStr | Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015 |
| title_full_unstemmed | Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015 |
| title_short | Trends and Variability in Precipitable Water Vapor throughout North China from 1979 to 2015 |
| title_sort | trends and variability in precipitable water vapor throughout north china from 1979 to 2015 |
| url | http://dx.doi.org/10.1155/2017/7804823 |
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