深部多源充电法的应用研究

本文介绍了深部多源充电法在新疆地区找深部铜镍及铅锌矿的应用效果;阐明了这种方法在钻孔深部圈定矿体及岩体分布范围,判断矿体产状,解决某些地质构造以及指导钻探工程的正确布设等方面所起的作用和效果。     

南方NTS系列全站仪的日常使用和维护

阐述全站仪在日常工作中使用、保管及全站仪电池充放电的注意事项     

白音查干银多金属矿床电性特征研究

通过在白音查干银多金属矿区开展中梯装置时间域激发极化法、偶极-偶极装置相位激电测深和可控源音频大地电磁测深的勘查试验,研究了典型热液银多金属矿床的电性特征,验证了综合电法在寻找银多金属矿床中的应用效果,对矿区外围找矿及其深部找矿具有借鉴意义。     

本刊百余名特约记者通讯员在修武“充电”

7月27～31日,本刊在修武县举办了第四届特约记者培训班。来自全省各地的120多名本刊特约记者、通讯员,冒着酷暑．汇聚修武．参加了为期4天的写作、摄影知识培训,并赴云台山进行了摄影实践和采风活动。     

如何正确使用与维护全站仪

介绍了全站仪的基本组成,日常工作中使用、保管、维护以及全站仪电池的充放电的注意事项     

Simulation of the Electrification of a Tropical Cyclone Using the WRF-ARW Model：An Idealized Case

Evolution of the electrifi cation of an idealized tropical cyclone （TC） is simulated by using the Advanced Weather Research and Forecasting （WRF-ARW） model. The model was modifi ed by addition of explicit electrifi cation and a new bulk discharge scheme. The characteristics of TC lightning is further examined by analyses of the electrifi cation and the charge structure of the TC. The fi ndings thus obtained are able to unify most of the previous inconsisitent observational and simulation studies. The results indicate that the TC eyewall generally exhibits an inverted dipole charge structure with negative charge above the positive. In the intensifi cation stage, however, the extremely tall towers of the eyewall may exhibit a normal tripole structure with a main negative region between two regions of positive charge. The outer spiral rainband cells display a simple normal dipole structure during all the stages. It is further found that the diff erences in the charge structure are associated with diff erent updrafts and particle distributions. Weak updrafts, together with a coexistence region of diff erent particles at lower levels in the eyewall, result in charging processes that occur mainly in the positive graupel charging zone （PGCZ）. In the intensifi cation stage, the occurrence of charging processes in both positive and negative graupel charging zones is associated with strong updraft in the extremely tall towers. In addition, the coexistence region of graupel and ice crystals is mainly situated at upper levels in the outer rainband, so the charging processes mainly occur in the negative graupel charging zone （NGCZ）.     

本刊百余名特约记者通讯员在修武“充电”

7月27～31日,本刊在修武县举办了第四届特约记者培训班。来自全省各地的120多名本刊特约记者、通讯员,冒着酷暑．汇聚修武．参加了为期4天的写作、摄影知识培训,并赴云台山进行了摄影实践和采风活动。     

南方NTS系列全站仪的日常使用和维护

阐述全站仪在日常工作中使用、保管及全站仪电池充放电的注意事项     

充电联合剖面新法在地质填图中的应用效果

充电联合剖面新法是在常规联合剖面的基础上．对其装置进行改进,将无穷远极缩短至有限近源点,并设置在预计可能存在的被探测地质体附近。改进后的充电联合剖面新法要求对充电点C与测量点MN的距离进行重新计算,即求得各测点CM、CN之后,然后再计算出和测点的K^A、K^B及K^AB。系数,进而计算ρsA,ρs^B。充电联合剖面新法在昌福山、高陂两个勘探区应用实践表明,该法相对常规联合剖面,对断层及煤岩层的异常反应强烈,交点明显,位置反映准确．配合地质填图可取得较好效果。     

卫星介质深层充电的计算机模拟研究

卫星介质深层充电效应是诱发地球同步轨道卫星运行故障和异常的重要因素之一,文中介绍了介质深层充电的物理机制,给出了初步的物理模型和计算机模拟方法,该模型的模拟计算结果与欧空局的深层充电分析软件DICTAT的计算结果吻合得很好. 深层充电导致的最大电场总是出现在介质的接地侧,因此,介质的接地侧是发生放电的危险区域;对于典型的外辐射带高能电子能谱情况,介质的充电时间为小时量级.