This study compared the differences in the wave climate in the South China Sea and North Indian Ocean under these two datasets:ERA-40 wave reanalysis and Mei’s hindcast wave data.In the numerical calculation of regio...This study compared the differences in the wave climate in the South China Sea and North Indian Ocean under these two datasets:ERA-40 wave reanalysis and Mei’s hindcast wave data.In the numerical calculation of regional ocean waves,the wave climate characteristics exhibited significant bias if the influence of external swells(swells from afar)was not fully considered,which may provide an incorrect basis for global climate change analysis.1)The trends of the significant wave height(SWH)obtained from the two datasets showed significant differences,such as those of the Bay of Bengal and the Java Sea in June-July-August.For the past 45 years,SWH from ERA-40(SWH-ERA)exhibited a significant annual increase in low-latitude waters of the North Indian Ocean(0.2-0.6 cm yr^(-1))and South China Sea(0.2-0.8 cm yr^(-1)).2)In the Bay of Bengal,the SWH-ERA in each month was generally 0.5 m higher than the SWH from Mei’s hindcast wave data(SWH-Mei)and can reach 1.0 m higher in some months.3)In the Bay of Bengal,SWH-ERA and SWH-Mei increased significantly at annual rates of 0.13 and 0.27 cm yr^(-1),respectively.This increasing trend was mainly reflected after 1978.SWH-ERA showed a trough in 1975(1.33 m)and a crest in 1992(1.83 m),which were not reflected in SWH-Mei.展开更多
The authors examine the effects of external forcing agents such as greenhouse gases （GHGs） and aerosols, as well as solar variability and ozone, on global land monsoon precipitation by using a coupled climate model ...The authors examine the effects of external forcing agents such as greenhouse gases （GHGs） and aerosols, as well as solar variability and ozone, on global land monsoon precipitation by using a coupled climate model HadGEM1, which was developed by the Met Office Hadley Centre for Climate Research. The results indicate that HadGEM1 performs well in simulating the observed decreasing trend of global land monsoon precipitation over the past 50 years. This trend mainly occurred in the Northern Hemisphere and is significantly different from the trend of natural variability due to ocean-atmosphere-land interactions. The coherence between the simulation and the observations indicates that the specified external forcing agents, including GHGs and aerosols as well as solar variability and ozone, are important factors that have affected the decreasing trend of global land monsoon precipitation in the past 50 years.展开更多
Garment manufacturers give utmost importance on quality of fabrics, cuts and design as they make a fashion statement. Manufacturers adjust their production cycles as per fashion oriented changes.
基于web of science中2001-2011年电子商务研究文献,利用Netdraw绘制国际电子商务研究的主题演化图谱。研究发现:11年间的研究主题演变实现了从实践技术基础向理论总结精炼的深化,从交易平台建设到产业规模化研究的转移,从商务管理模式...基于web of science中2001-2011年电子商务研究文献,利用Netdraw绘制国际电子商务研究的主题演化图谱。研究发现:11年间的研究主题演变实现了从实践技术基础向理论总结精炼的深化,从交易平台建设到产业规模化研究的转移,从商务管理模式向消费者行为研究的推进;技术支持、商业管理、电子商务模式、网络基础建设和消费者行为研究是11年来的研究热点主题。总结了国际电子商务研究的特征,并对未来研究进行了展望。展开更多
目的:分析2012-2017年广州市心原性猝死死亡情况及趋势。方法:人口资料来源于广州市公安局和广州市统计局。死亡数据来源于中国疾病预防控制信息系统“人口死亡信息登记管理系统计算死亡率、年龄别死亡率、世界人口标化死亡率(简称世标...目的:分析2012-2017年广州市心原性猝死死亡情况及趋势。方法:人口资料来源于广州市公安局和广州市统计局。死亡数据来源于中国疾病预防控制信息系统“人口死亡信息登记管理系统计算死亡率、年龄别死亡率、世界人口标化死亡率(简称世标率)和年度变化百分比(annualpercentage change, A PC )-利用Joint Regression Program软件分析心原性猝死时间变化趋势。结果:2012~2017年广州市发生心原性猝死11 052例.年平均死亡世标率为14.48/10万,男性(18.44/10万)高于女性(10.76/10万),死亡率随着年龄的增长而升高:1月、2月、12月份死亡病例较多,发生地点院外较多(61.01%),常伴有的疾病为心血管疾病。6年间死亡率总体呈上升趋势,死亡世标率由10.76/10万上升到1 &25/10万,APC值为14.42%(Z=5.76, 95%CI:7.2%~22.1%),_结论:心原性猝死是比较重要的公共健康问题,广州市近年来心原性猝死呈增长趋势,男性和老年人是重点人群。展开更多
基金supported by the open fund project of Shandong Provincial Key Laboratory of Ocean Engineering,Ocean University of China(No.kloe201901)the State Key Laboratory of Estuarine and Coastal Research(No.SKLEC-KF201707).
文摘This study compared the differences in the wave climate in the South China Sea and North Indian Ocean under these two datasets:ERA-40 wave reanalysis and Mei’s hindcast wave data.In the numerical calculation of regional ocean waves,the wave climate characteristics exhibited significant bias if the influence of external swells(swells from afar)was not fully considered,which may provide an incorrect basis for global climate change analysis.1)The trends of the significant wave height(SWH)obtained from the two datasets showed significant differences,such as those of the Bay of Bengal and the Java Sea in June-July-August.For the past 45 years,SWH from ERA-40(SWH-ERA)exhibited a significant annual increase in low-latitude waters of the North Indian Ocean(0.2-0.6 cm yr^(-1))and South China Sea(0.2-0.8 cm yr^(-1)).2)In the Bay of Bengal,the SWH-ERA in each month was generally 0.5 m higher than the SWH from Mei’s hindcast wave data(SWH-Mei)and can reach 1.0 m higher in some months.3)In the Bay of Bengal,SWH-ERA and SWH-Mei increased significantly at annual rates of 0.13 and 0.27 cm yr^(-1),respectively.This increasing trend was mainly reflected after 1978.SWH-ERA showed a trough in 1975(1.33 m)and a crest in 1992(1.83 m),which were not reflected in SWH-Mei.
基金supported by National Natural Science Foundation of China under GrantNos. 40625014, 40821092, and 90711004the National Basic Research Program of China (2006CB403603)the China Meteorological Administration (GYHY200706010,GYHY200706005)
文摘The authors examine the effects of external forcing agents such as greenhouse gases （GHGs） and aerosols, as well as solar variability and ozone, on global land monsoon precipitation by using a coupled climate model HadGEM1, which was developed by the Met Office Hadley Centre for Climate Research. The results indicate that HadGEM1 performs well in simulating the observed decreasing trend of global land monsoon precipitation over the past 50 years. This trend mainly occurred in the Northern Hemisphere and is significantly different from the trend of natural variability due to ocean-atmosphere-land interactions. The coherence between the simulation and the observations indicates that the specified external forcing agents, including GHGs and aerosols as well as solar variability and ozone, are important factors that have affected the decreasing trend of global land monsoon precipitation in the past 50 years.
文摘Garment manufacturers give utmost importance on quality of fabrics, cuts and design as they make a fashion statement. Manufacturers adjust their production cycles as per fashion oriented changes.
文摘基于web of science中2001-2011年电子商务研究文献,利用Netdraw绘制国际电子商务研究的主题演化图谱。研究发现:11年间的研究主题演变实现了从实践技术基础向理论总结精炼的深化,从交易平台建设到产业规模化研究的转移,从商务管理模式向消费者行为研究的推进;技术支持、商业管理、电子商务模式、网络基础建设和消费者行为研究是11年来的研究热点主题。总结了国际电子商务研究的特征,并对未来研究进行了展望。
文摘目的:分析2012-2017年广州市心原性猝死死亡情况及趋势。方法:人口资料来源于广州市公安局和广州市统计局。死亡数据来源于中国疾病预防控制信息系统“人口死亡信息登记管理系统计算死亡率、年龄别死亡率、世界人口标化死亡率(简称世标率)和年度变化百分比(annualpercentage change, A PC )-利用Joint Regression Program软件分析心原性猝死时间变化趋势。结果:2012~2017年广州市发生心原性猝死11 052例.年平均死亡世标率为14.48/10万,男性(18.44/10万)高于女性(10.76/10万),死亡率随着年龄的增长而升高:1月、2月、12月份死亡病例较多,发生地点院外较多(61.01%),常伴有的疾病为心血管疾病。6年间死亡率总体呈上升趋势,死亡世标率由10.76/10万上升到1 &25/10万,APC值为14.42%(Z=5.76, 95%CI:7.2%~22.1%),_结论:心原性猝死是比较重要的公共健康问题,广州市近年来心原性猝死呈增长趋势,男性和老年人是重点人群。
