Articles | Volume 32, issue 1
| Highlight paper
28 Jan 2014
Review paper | Highlight paper | 28 Jan 2014
China's dimming and brightening: evidence, causes and hydrological implications
Y. W. Wang and Y. H. Yang
No articles found.
Xinyao Zhou, Zhuping Sheng, Yanmin Yang, Shumin Han, Qingzhou Zhang, Huilong Li, and Yonghui Yang
Hydrol. Earth Syst. Sci. Discuss.,
Preprint under review for HESSShort summary
The hydrological processes of a watershed system are affected by both natural conditions, such as rainfall and drought, and human activities, such as deforestation and afforestation. Therefore different hydrological responses to climatic and anthropogenic changes are expected. Using a spectral approach, this study confirmed that the driving factors of water storage and streamflow generation mechanism vary over time. This is important for water resources management under changing world.
Xinyao Zhou, Yonghui Yang, Zhuping Sheng, and Yongqiang Zhang
Hydrol. Earth Syst. Sci., 23, 2491–2505,Short summary
Quantifying the impact of upstream water use on downstream water scarcity is critical for water management. Comparing natural and observed runoff in China's 12 basins, this study found surface water use increased 1.6 times for the 1970s-2000s, driving most arid and semi-arid (ASA) basins into water scarcity status. The water stress decreased downstream in ASA basins due to reduced upstream inflow since the 2000s. Upstream water use caused over a 30 % increase in water scarcity in ASA basins.
Yawen Wang, Martin Wild, Arturo Sanchez-Lorenzo, Yonghui Yang, Veronica Manara, and Dandan Ren
Atmos. Chem. Phys. Discuss.,
Revised manuscript not acceptedShort summary
The strong decadal variations in surface solar radiation, known as "global dimming and brightening", are considered to be related to anthropogenic activities. Based on a comprehensive set of sunshine duration measurements in China, the present study investigates to what extent these changes occurred, only in cities or also in remote areas. The quantification of this "urbanization effect" enables a more accurate determination of the large scale variations of surface solar radiation over China.