Roles of Wind Stress and Subsurface Cold Water in the Second-Year Cooling of the 2017/18 La Nina Event

After the strong 2015/16 El Nino event,cold conditions prevailed in the tropical Pacific with the second-year cooling of the 2017/18 La Ni?a event.Many coupled models failed to predict the cold SST anomalies(SSTAs)in 2017.By using the ERA5 and GODAS(Global Ocean Data Assimilation System)products,atmospheric and oceanic factors were examined that could have been responsible for the second-year cooling,including surface wind and the subsurface thermal state.A time sequence is described to demonstrate how the cold SSTAs were produced in the central-eastern equatorial Pacific in late 2017.Since July 2017,easterly anomalies strengthened in the central Pacific;in the meantime,wind stress divergence anomalies emerged in the far eastern region,which strengthened during the following months and propagated westward,contributing to the development of the second-year cooling in 2017.At the subsurface,weak negative temperature anomalies were accompanied by upwelling in the eastern equatorial Pacific,which provided the cold water source for the sea surface.Thereafter,both the cold anomalies and upwelling were enhanced and extended westward in the centraleastern equatorial Pacific.These changes were associated with the seasonally weakened EUC(the Equatorial Undercurrent)and strengthened SEC(the South Equatorial Current),which favored more cold waters being accumulated in the central-equatorial Pacific.Then,the subsurface cold waters stretched upward with the convergence of the horizontal currents and eventually outcropped to the surface.The subsurface-induced SSTAs acted to induce local coupled air–sea interactions,which generated atmospheric–oceanic anomalies developing and evolving into the second-year cooling in the fall of 2017.

2017年全球主要环境智库研究动态综述

本文从可持续发展目标、气候变化、生物多样性、水资源、大气环境和"一带一路"倡议六大领域综述了2017年主要国际智库的研究趋势,包括信息披露和大数据重要性日益凸显,气候变化是贯穿始终的全球环境热点议题,对环境议题的研究突出整体观和一体化的思维。基于对国际智库的研究提出对于我国环境智库发展的具体建议:积极引导环境智库走出去,扩大智库在支持中国引领全球生态文明建设方面的作用;学习国际优秀智库的发展经验,提高环境智库科学化研究水平和全球化视野;引导国内智库服务于国内热点环境问题。

The Situation of Southeast Asia in 2017 and Assessment of Its Relations with China

The situation in Southeast Asia in 2017 was generally stable,as relations with China continued to improve,and progress in maritime consultations continued to develop.I.The political situation is stable and generally manageable Stability is manifested in the following aspects.The governments of the Philippines,Myanmar,Vietnam,Laos are seeking stability and good governance.

China Confirms to Participate in 2017 Astana Expo Held In Kazakhstan

On August 24,Jiang Zengwei-Chairman of China Council for the Promotion of International Trade (CCPIT),officially submitted in Beijing the confirmation documents for China’s participation in Astana Expo to Kazakh First Deputy Foreign Minister Rapil Zhoshybayev,which signals that the preparation work for China to participate in Astana Expo has been officially initiated.

Associate Editors-in-Chief

Shuhai XIAO Shuhai XIAO is a geobiologist interested in He obtained Bachelor＇s and Master＇s degrees Proterozoic and Cambrian Earth history. from Peking University and Ph.D. from Harvard University. He was an assistant professor at Tulane University （2000-2003）, and assistant professor （2003-2005） and associate professor （2005-2008） at Virginia Tech, and is currently Professor of Geobiology at Virginia Tech, USA.

Lynas,Australia's rare earth producer has increased its sales in 2017

As sales and demand increased in the electric car industry,Lynas,a rare earth producer in Australia,announced a surge in revenue in the second half of 2017.It was reported that the company’s six month sales up to December 31,2017 was209 million Australian dollars($155.7 million),compared with a$114.6 million in

Five characteristics of China textile industry performance in 2017 Former and present driving forces transferred significantly

According to the 2017 Summary Conference of China National Textile and Apparel Council(CNTAC)held on January 22nd to 23rd,in the first 11 months of 2017,the overall operation of China’s textile industry showed a steady growth rate,stable domestic demand growth。

The Chinese Government Will Initiate Seven Major Geological Special Projects in 2017

Recently, the Chinese Technology has issued more within the national key Ministry of Science and than 40 key special projects research and development program. In the 2017 Annual Project Application Guidelines, a total of seven key projects related to geological sciences are planned, with overall funding of 3.52 billion yuan, with the timespan generally of five years. They are introduced as follows：

Analysis of The Domestic Aluminum Industry in 2017

2016,the starting year of the 13th Five-Year period,was a satisfactory year for aluminum enterprises.With the government’s intensified efforts in supply-side reform,economic restructuring achieved initial results。