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Li L.,Qinghai Climate Center | Li L.,Qinghai Key Laboratory of Disaster Preventing and Reducing | Shen H.,Qinghai Climate Center | Shen H.,Qinghai Key Laboratory of Disaster Preventing and Reducing | And 5 more authors.
Journal of Geographical Sciences | Year: 2013

In this paper, variations of surface water flow and its climatic causes in China are analyzed using hydrological and meteorological observational data, as well as the impact data set (version 2. 0) published by the National Climate Center in November 2009. The results indicate that surface water resources showed an increasing trend in the source region of the Yangtze River over the past 51 years, especially after 2004. The trend was very clearly shown, and there were quasi-periods of 9 years and 22 years, where the Tibetan Plateau heating field enhanced the effect, and the plateau monsoon entered a strong period. Precipitation notably increased, and glacier melt water increased due to climate change, all of which are the main climatic causes for increases in water resources in the source region. Based on global climate model prediction, in the SRESA1B climate change scenarios, water resources are likely to increase in this region for the next 20 years. © 2013 Science Press and Springer-Verlag Berlin Heidelberg. Source


Li L.,Qinghai Climate Center | Li L.,Qinghai Key Laboratory of Disaster Preventing and Reducing | Shen H.,Qinghai Climate Center | Shen H.,Qinghai Key Laboratory of Disaster Preventing and Reducing | And 5 more authors.
Acta Geographica Sinica | Year: 2011

The hydrological and meteorological data of the source region of Yellow River from 1956 to 2010 and future climate scenarios from regional climate model (PRECIS) during 2010-2020 are used to analyze the flow variations and revealing the climate causes, and to predict the variation trend for future flows. Some conclusions can be drawn as follows. 1) Annual mean flow shows a decreasing trend in recent 50 years in the source region of Yellow River, and there are periods of 5a, 8a, 15a, 22a and 42a. 2) The precipitation decrease due to the weakened South China Sea summer monsoon as well as the increasing evaporation and the degenerating frozen soil in global warming are the climate origin of decreasing flow. 3) Based on the regional climate model PRECIS prediction, the flows in the source region of Yellow River are likely to decrease in the next 20 years. Source


Li L.,Qinghai Climate Center | Li L.,Qinghai Key Laboratory of Disaster Preventing and Reducing | Dai S.,Qinghai Climate Center | Dai S.,Qinghai Key Laboratory of Disaster Preventing and Reducing | And 6 more authors.
Acta Geographica Sinica | Year: 2012

By using the hydrological and meteorological observational data as well as impact data set (version 2.0) about climate change in China published by the National Climate Center in November 2009, the variations of flow and its climate causes are analyzed in this paper. The results indicate that the surface water resources show an increasing trend in the source region of Yangtze River in recent 51 years, especially after 2004, the trend was very obvious, and there were quasi-periods of 9 years and 22 years; Tibetan Plateau heating field enhanced, plateau monsoon went into a strong period, precipitation increased notably, and glacier melt water increased due to the climate change, all of which are the main climate causes of water resource increase in the source region. Based on the global climate model prediction, in the SRESA1B climate change scenarios, the water resources are likely to increase in this region in the next 20 years. Source

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