地物环境对地面大气电场测量结果的影响较大,这在地面大气电场仪联网中将会影响以致失去各观测点数据间的可比性。针对这一问题将地面上凸出的建筑物、树木等简化为形状规则的立方体、柱体和球体三种基本单元,分别对这三种基本单元周围的大气电场进行了计算和讨论,并采用电磁场仿真软件Ansoft Maxwell进行了仿真分析,得出了地面凸出物的形状、距离、高度对大气电场影响的解析关系式以及不同条件下的环境修正系数。

To eliminate the influence of surface features is significant to the data＇s coherence in an atmospheric electric field detection network. In order to study the influence of surface features on atmospheric electric field near ground, protuber- ances on the ground （eg. buildings, plants etc. ） are modeled as regular cubes, cyl- inders and spheres, and the electric field around these geometries is calculated in theory and simulated with Ansoft Maxwell respectively. Analytic relational expres- sions of the influence with respect to the shapes, relative locations and sizes of the protuberances are found, and the correction parameters of various ground features are given. A correction approach is brought up, and its feasibility is verified by both calculation and simulation.

为了提高电场联网数据的一致性，扩大雷暴监测范围，讨论了海拔对电场数据的影响及联网算法存在的问题，提出了一种大气电场数据的海拔校正方法。采用克里格法对2010年南京地区6~8月的电场数据进行联网实验，结合雷达回波资料，对双单体雷暴过程进行综合分析。结果表明，海拔校正方法能有效地修正电场数据，有助于提高大气电场仪的雷暴监测能力。由于各雷暴发展程度不同，雷暴云电荷结构存在差异，导致雷暴回波强度与电场分布不一致，甚至会出现互换的情况。

To improve the network data consistency and expand the field monitoring scope, the effect of altitude on electric field data and the existing problems in networking algorithm were discussed. An altitude correction method was proposed for atmospheric electric field data and the Kriging method used to networking, and the thunderstorm processes analyzed based on atmospheric electric field data in Nanjing from June to August 2010 , with the double monomer thunderstorm process comprehensively analysed. The results show that the altitude correction method can effectively improve the electric field network, and expand the monitoring scope of the electric field. Due to the dif-ferent levels of development of each thunderstorm, there are different charge structures of thunderstorm, resulting in an inconformity between the thunderstorm echo intensity and the electric field distribution, and the situation may e-ven be interchangeable.

2011年6月23日故宫博物院锡庆门、箭亭等5个场所遭雷击。利用该日常规天气资料、卫星资料、雷达资料、大气电场资料、闪电定位资料，分析了该次雷击事件的天气背景和雷击时段大气电场、闪电分布的相关特征；根据雷击现场调查，分析了故宫遭雷击的具体原因和防雷薄弱环节，针对存在的问题给出了整改建议；提出了采取小范围雷电监测预警措施，进行故宫精细化雷电监测预警，改善故宫防雷现状。相关结论可以为文物古建场所的雷电监测预警以及防雷措施的选择提供参考。

On June 23,2011,five sites including Xiqing Gate and the Arrow Station in the Palace Museum were struck by lightning.The weather condition and the characteristics of atmospheric electric field and lightning distribu-tion during the lightning stroke period are analyzed in detail utilizing the routine weather data,satellite data,radar echo data,the atmospheric electric field data as well as the lightning data.Then,on the basis of the field investiga-tion of lightning stroke in each place,the specific causes of lightning stroke and the weak link of lightning protection are analyzed.Aiming at these existent problems,the improvement suggestions are given. Especially,the small scale lightning monitoring and early warning measures are put forward.Thus the precise monitoring and warning measures will be implemented and the lightning protection of the Palace Museum will be improved.Some references are pro-vided for lightning monitoring & warning and the selection of lightning protection measure

以广西北部湾经济区吹填土作为研究对象,将土样置于稳定直流电场中,通过控制电场的有无,同时调整场强、土样含水率、密实度以及淡化程度,研究不同条件下土体内部电荷的变化规律,初步模拟雷雨云与大地之间的电性响应,以便进一步探究岩土体的"引雷"机制。结果表明,附加电场与大气电场均对土体内部电荷变化存在影响,且随着场强的增大表现得更显著;高含水率、低淡化程度,能促进电荷移动,增强土体导电性能,但含水率升高到一定程度后这种作用趋于稳定状态;土体密实度对其内部电荷分布具有一定影响,但规律性不明显。

With the purpose of the study on change rule of internal charge in soil specimens under differing circumstances ,dredger fill ,which was collected from Guangxi Beibu Gulf Economic Zone ,was studied in various parameters ,including the absence/presence of the applied DC electric field ,different levels of field strength ,soil water content ,soil compactness ,and degree of desalination .Moreover ,through tentatively simulating the electrical response between thundercloud and earth mass ,the triggered lightning mechanism of rock soil mass was explored .The results show that both additive electrical field and atmospheric electric field had influence over charge variation of soil ,the impact of which would become more significant with the increasing field strength .Higher soil water content and lower degree of desalination could enhance the charge variation and conductivity of soil ,whilst this action effect would remain stable when soil water content reached a certain degree .Although soil

总结了海上风机基础的腐蚀特点，以及适用于海上风机基础的常用防腐蚀方法。着重分析比较了耐候性要求高的大气区的涂层防腐技术、耐蚀性要求高的浪溅区、水位变动区的涂层防腐技术和包覆防腐技术。建议风机基础防腐蚀设计采用考虑整个建设和运行期的全寿命周期设计，并阐述了相关设计要点。可供海上风电场选择防腐蚀设计方案参考。

The paper summarizes the characteristics of corrosion of foundations for offshore wind turbines and the anticorro-sive measures in common use for offshore wind turbine foundations. The technology of anticorrosion coating in atmospheric zone where high weather sustainability is required and the technology of anticorrosion coating and wrapping in the splash and tidal zones where high corrosion resistance is required are analyzed and compared. It is then recommended that a corrosion protection design for an offshore wind turbine foundation should take into consideration the full life cycle of the foundation in its whole construction and operational duration,and relative design considerations are put forward for the reference for selec-tion of corrosion protection designs of offshore wind turbine fields.