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Near Future (2016-40) Summer Precipitation Changes over China as Projected by a Regional Climate Model (RCM) under the RCP8.5 Emissions Scenario: Comparison between RCM Downscaling and the Driving GCM 被引量:31
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作者 邹立维 周天军 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2013年第3期806-818,共13页
Multi-decadal high resolution simulations over the CORDEX East Asia domain were performed with the regional climate model RegCM3 nested within the Flexible Global Ocean-Atmosphere-Land System model, Grid-point Version... Multi-decadal high resolution simulations over the CORDEX East Asia domain were performed with the regional climate model RegCM3 nested within the Flexible Global Ocean-Atmosphere-Land System model, Grid-point Version 2 (FGOALS-g2). Two sets of simulations were conducted at the resolution of 50 km, one for present day (1980-2005) and another for near-future climate (2015-40) under the Representative Concentration Pathways 8.5 (RCP8.5) scenario. Results show that RegCM3 adds value with respect to FGOALS-g2 in simulating the spatial patterns of summer total and extreme precipitation over China for present day climate. The major deficiency is that RegCM3 underestimates both total and extreme precipi- tation over the Yangtze River valley. The potential changes in total and extreme precipitation over China in summer under the RCP8.5 scenario were analyzed. Both RegCM3 and FGOALS-g2 results show that total and extreme precipitation tend to increase over northeastern China and the Tibetan Plateau, but tend to decrease over southeastern China. In both RegCM3 and FGOALS-g2, the change in extreme precipitation is weaker than that for total precipitation. RegCM3 projects much stronger amplitude of total and extreme precipitation changes and provides more regional-scale features than FGOALS-g2. A large uncertainty is found over the Yangtze River valley, where RegCM3 and FGOALS-g2 project opposite signs in terms of precipitation changes. The projected change of vertically integrated water vapor flux convergence generally follows the changes in total and extreme precipitation in both RegCM3 and FGOALS-g2, while the amplitude of change is stronger in RegCM3. Results suggest that the spatial pattern of projected precipitation changes may be more affected by the changes in water vapor flux convergence, rather than moisture content itself. 展开更多
关键词 dynamical downscaling extreme precipitation near future precipitation changes
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Four Population Peaks to Appear in Near Future
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《China Population Today》 2001年第6期16-17,共2页
关键词 Four Population Peaks to Appear in near future Zhang
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VoIP Market Intensified,the Government Control Still Won't Be Unlocked In the Near Future
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作者 Xu Xiaoying 《数字通信世界》 2006年第12期94-95,共2页
The traditional telecommunications operator of China has entered into a substantive network construction stage of NGN and new VoIP service in 2006. As the increasing understanding and the consideration of cost to VoIP... The traditional telecommunications operator of China has entered into a substantive network construction stage of NGN and new VoIP service in 2006. As the increasing understanding and the consideration of cost to VoIP, VoIP has become more acceptable for CIO of large-scale enterprises. Small and medium-scale enterprises are sensitive to communication cost, but influenced by the maturity of VoIP technology and reduction of VoIP equipment price, the market is intensified. All these drive the VoIP equipment entering into the actual purchase stage and promote the stable growth of VoIP equipment scale. 展开更多
关键词 VoIP Market Intensified the Government Control Still Won’t Be Unlocked In the near future In more As BE VolP
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PetroChina's Natural Gas Exploration Clue in the Near Future
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作者 Li Jingming Chen Mengjin Li Dongxu and Zhang Fudong(Langfang Branch of Petroleum Exploration and Development Research Institute) 《China Oil & Gas》 CAS 2002年第3期24-27,共4页
PetroChina's natural Exploration Situationand Problems Exploration situation Recently natural gas development of PetroChina Company Limited (hereinafter referred to as PetroChina) was in good situation. Its natura... PetroChina's natural Exploration Situationand Problems Exploration situation Recently natural gas development of PetroChina Company Limited (hereinafter referred to as PetroChina) was in good situation. Its natural gas Exploration has entered a rapid development stage. 展开更多
关键词 PetroChina’s Natural Gas Exploration Clue in the near future
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