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Trends of surface humidity and temperature during 1951-2012 in Beijing, China

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Chu, Q., Xu, Z., Peng, D., Yang, X., Yang, G.. Trends of surface humidity and temperature during 1951-2012 in Beijing, China. Proceedings of the International Association of Hydrological Sciences, 2015, 368:126-131. doi:10.5194/piahs-368-126-2015

文献信息
Type Of Reference JOUR
Title Trends of surface humidity and temperature during 1951-2012 in Beijing, China
Authors Chu, Q.| Xu, Z.| Peng, D.| Yang, X.| Yang, G.|
Secondary Title Proceedings of the International Association of Hydrological Sciences
Abstract In this paper, two datasets, a long time series (1951-2012) of daily surface observations at one meteorological station and a shorter time series (1979-2012) of three-hourly data with 0.1°×0.1° spatial resolution were analysed by using non-parametric methods to identify annual and seasonal variations in surface humidity and temperature. The results reveal that: (1) saturation water vapour pressure increased exponentially with temperature. Actual daily values at Beijing Meteorological Station are very close to the theoretical values estimated by using the simplified Clausius-Clapeyron equation, but with seasonal variations. (2) For both long- and short-term data, clear increasing tendencies of annual saturation specific humidity and temperature are found. Decreasing and drying trends were detected for winter. (3) The annual relative humidity showed a decreasing trend except for some suburban areas, somehow related to the lower temperature and increased specific humidity in those areas. (4) Regional changes in topography and elevation likely influenced trends in surface humidity, while local land use showed little effect on it.
Date 2015//01/
Year 2015
DOI 10.5194/piahs-368-126-2015
Database Provider NASA ADS
volume 368
Start Page 126
Alternate Title1 Proceedings of the International Association of Hydrological Sciences
Url http://adsabs.harvard.edu/abs/2015PIAHS.368..126C
Access Date 2016/07/12/04:18:59
notes <p>7a35329c-c53f-4267-aa07-e0037d913a21</p>
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