IASPEI91实用震相走时表及计算方法

解析了美国ASL提供ISPEI91走时表的存储结构。自己研制的方法与美方提供方法相结合，根据需要可以随意计算各种地震震相的到时或该震相与初至波的到时差。本软件在功能上完全满足目前台站的工作要求。将计算理论震相、震相到时差和汇编走时表功能集成在一个界面下，有利于台站工作，可以提高工作效率，为台站人员的地震监测和分析工作提供了方便。     

地震科学的几个发展趋势

综合介绍了地震科学的几个发展趋势，包括：从板块理论向板块边界带研究的过渡，从深部结构研究向浅层地壳结构研究过渡，从观测向模拟研究过渡，从地震危害性向地震危害性研究的过渡。     

上海地震台阵与台网的定位及视慢度研究

阐述了台阵的地震定位原理和视慢度在台阵与台网定位中的一些重要特性，并比较了相同位置上的上海地震台阵与台网对同一地震的定位结果。最后，对上海台队与台网导致定位误差的横向速度变化的位置和范围给出了矢量校正的结果并进行了初步讨论。     

保险与地震系统在开展震灾保险中的合作模式

震灾保险新制式是地震科技导入保险营运过程以强化其科学性，规范性的一次创新尝试；制式的推行同时将给保险与系统的联手协作主各自相关业务的拓展带来新的概念和新的该文论述了这种合作的方式和特点，并向人们展示了合作必将获妈巨大社会效益的良好前景。     

远程访问IRIS数据的方法

通过ＩＮＴＥＲＮＥＴ远程访问ＩＲＩＳＤＭＣ数据库的基本方法，以便于广大地震研究人员及时获取全球数字地震台网的地震资料及有关信息。     

开创地震科技信息新局面的几点思考

人类社会即将进入信息高速发展的２１世纪，全球许多国家都正在投入大量的人力和物力开发新世纪的信息技术。中国政府也设计了适合国情的“信息高速公路”计划。中国是世界上内陆地震最多的国家，也是遭受地震灾害最严重的国家。     

A reappraisal of the seismicity of the Maghreb countries — Algeria, Morocco, Tunisia

This paper reappraises the seismicity of Algeria and adjacent regions. It presents a general view of the geographical structure, the historical development of the seismological station network, some aspects of the effects of past destructive earthquakes, the state of knowledge of the seismicity and the seismic hazard and risk in the region under survey. Magnitude-frequency relationships for different parts of the region studied are presented as well as magnitude-intensity and intensity-attenuation relationships, semi-empirical formula. It also discusses the macroseismic information, the instrumental data and the social and economic implications of earthquakes in the Maghreb region.     

地方地震工作的区域联防初探

地方地震工作的区域联防是特指在我国内陆跨省（市）、跨地区、按照震害客观分布情况由若干个地方地震部门自愿联合起来的区域地震工作协作组织。“淮海经济区地震联防会”是在我国大陆地震活动进入新的活跃期,为适应减轻地震灾害的需要,由苏、鲁、豫、皖四省十六地（市）自发联合,于１９８９年成立的。本文通过“联防会”的产生、机构性质、主要任务、活动方式、组织管理工作的回顾与思考,提出了一个区域联防的工作模型,在实践     

Importance of Reference Dataset Improvements for Argo Delayed-Mode Quality Control

For the Argo Project, monitoring the global upper ocean by a large number of profiling floats, maintaining the quality of salinity data is critical; the goal for measurement accuracy is ±0.01. Experiments using the method of Wong et al. (2003), the standard delayed-mode quality control (dQC) for the Project, show that its performance depends critically on the reference datasets used. This study concludes that the method is useful for Argo and has sufficient potential to achieve the goal for salinity measurement in the North Pacific, when suitable reference datasets are prepared. Considering the Wong et al. (2003) algorithms, we suggest that reference datasets with the following characteristics will be most suitable for Argo dQC: They should be basically derived from the most extensive datasets, such as the latest World Ocean Database; in regions with denser observations, datasets with carefully quality controls should be used; in the regions with subsurface temperature inversions, such as the subarctic North Pacific, the profiles used for the reference must extend below the deepest temperature maximum to prepare proper salinities for the deep layer reference.     

Has the 1998 regime shift also occurred in the oceanographic conditions and lower trophic ecosystem of the Oyashio region?

To examine whether the regime shift in 1998 that has been variously reported to have occurred in the oceanographic conditions of the central and eastern North Pacific also occurred in the Oyashio region, western North Pacific, we compared data over the period 1990–2003. Oceanographic conditions were compared before 1997 with those after 1998, using the A-line dataset (1990–2003) obtained by the oceanographic surveys of the Hokkaido National Fisheries Research Institute, Fisheries Research Agency (HNFRI/FRA). Seasonal changes of the monthly-mean SST (as temperature in the surface layer) show a significant increase in spring after 1998. After 1998, the mean concentration of chlorophyll a at the surface was higher in spring than that before 1997. This was more remarkable in the main current of the Oyashio. These changes suggest that the spring phytoplankton bloom in the Oyashio region after 1998 was larger in magnitude and initiated earlier. Consumption of nutrients during the spring bloom and standing stock of netplankton also shows a distinct difference between the time period before 1997 and after 1998. These results support the occurrence of the regime shift around 1998 in the Oyashio region. The changes of hydrographical conditions accompanying with the 1998 regime shift are discussed. The hydrographic mechanism of enhancement of primary productivity during the spring phytoplankton bloom was not fully clarified, though. Results in this study may support the usefulness of the A-line dataset for analysis of long-term variability in the western subarctic Pacific.