移动通信基站的防雷地网综合设计

为了提高移动基站的防雷能力，结合移动基站防雷地网的建设和维护经验，提出根据实际情况设计移动通信基站防雷地网系统的设计思想和方法，分析和研究了接地装置、等电位连接、直击雷保护系统、感应雷保护系统、移动基站地网的类型和组成。     

新安县自动气象站报文传输质量分析

根据新安县自动站报文传输情况，分析了影响传输质量的因子，并提出提高报文传输质量的措施。     

GZCORS系统的建设与应用

GZCORS覆盖全广州约8000km2的行政区域,它是卫星定位技术、计算机网络技术、数字通讯技术等高新科技多方位、深度结晶的产物,可以全自动、全天候、实时提供覆盖全广州市域的高精度空间和时间信息。对系统建设中的关键性技术问题和具体实施方案进行了研究和解决。     

自动站与人工观测降水量差值的成因分析

通过自动站与人工站在降水量观测差值的对比,对差值原因进行了分析。     

电子全站仪模拟器软件的开发原理与实现

在Visual Basic 6.0环境下,探讨了电子全站仪模拟器软件开发的基本原理,分析了系统设计的结构框架,并以坐标测量为例介绍了其实现的过程.     

对地观测卫星地面站的站址选择和布局分析

现代小卫星技术是近些年来迅速发展起来的航天领域高新技术，利用该技术为地球观测服务是一件远景可观、意义深远的事情。在对地观测卫星的诸多关键技术之中，地面站的设计是一个很重要的方面。本文主要对对地观测卫星地面站的站址选择与布局进行了详细的讨论。     

南极中国长城站空气微生物含量监测(英)

The outdoor air borne microbial content over Great Wall Station, Antarctica has been monitored, including its diurnal variations and states in fair or foul weather conditions.The results obtained show: the concentration averaged 161. 9 CFU. m-3. When the weather condition was fair, its range of variation is 0～1 336. 2 CFU. m-3, the average value was 1488. 3 CFU. m-3,when the weather was foul, the range of variation was 471. 4-4 296. 8 CFU. m-3. The average value of air borne microbial number in either fair or foul weather was 383. 0 CFU. m-3. This value is over than 21 times that obtained during 1986/1987.The results seem to show that the influence of human activities have been increasing on Antarctic ecosystem. The diurnal variation of the outdoor air borne microbes shows that the peak of content appeared at about 01: 00, and the trough at about 13: 00 in a whole day. Analyses were made of the relationships between the microbial concentration with its related indexes, i. e. relevant air temperature relative humidity or wind force.The results showed some particularities as compared with those from the areas outside Antarctica.     

静海台地磁短周期变化异常与其附近地震的关系

近年来的一些研究表明,由于地城前孕震区地下介质的电磁结构的变化,将导致地磁短周期转换函数发生异常变化。本文通过对１９９１年唐山５．２、５．６级地城前后静海台地磁短周期转换函数参数的计算及其结果的分析和研究,提取出了可靠的地震短临前兆信息,确立了将其应用于唐山地区５级以上的震预报的短临异常特征及其指标。     

Quality control and homogeneity of Turkish precipitation data

Outlier trimming and homogeneity checking/correction were performed on the monthly precipitation time series of various lengths from 267 stations in Turkey. Outlier values are usually found during dry summer months, and are concentrated mostly over the southern parts of the country, where the dry period is most pronounced, implying natural extremes rather than wrong measurements. Homogeneity analysis was done using the Standard Normal Homogeneity Test, on an individual monthly basis, which led to many non‐testable series due to lack of reference stations, especially during summer months. Yet, remaining testable months were usually helpful for the assessment of homogenity, revealing a well distributed set of stations that proved to be homogeneous. There were still a number of stations which either could not be tested efficiently, or were classified as inhomogeneous. Lack of metadata is argued to be largely responsible for inefficient homogeneity testing. Copyright © 2008 John Wiley & Sons, Ltd.     

上海天文台佘山工作站夜天亮度的变化

使用1994—2007年在1．56m反射望远镜CCD照相机拍摄的资料，测定了上海天文台余山工作站夜天亮度的变化。由于上海城市的发展，佘山工作站的夜天亮度在V波段从每平方角秒约19mag变到15．8mag，也就是说，夜天亮度自1994年以来变亮了约20倍。国际上优良台站的夜天亮度在V波段等于或暗于21．5mag。上述夜天亮度是优良台站的200多倍。现在在佘山工作站使用1．56m反射望远镜对暗于V=14mag的星做精确测光已经很困难了。