激光荧光雷达系统的测量方法与应用     

刘南英  荀毓龙  吴文洲  孙修洪 《遥感学报》1992,(Z1)

本文叙述了应用激光荧光雷达系统测量海上溢油类别以及植被、岩矿、土壤、地被物等荧光光谱的方法与技术。该装置由N_2激光源、OSA光学光谱分析仪、卡斯格伦望远镜接收系统三部分组成。该装置可在室内,也可在室外25—60m远处测量各种物质的受激发射荧光。该仪器用标准灯谱进行了校正。  相似文献   

单台测震分析与资料交换程序     

孙文斌  和跃时 《东北地震研究》1992,(1)

按照地震台站测震分析处理过程,我们在长城0520DH微机上建立了一套地震分析与资料交换程序。该程序具有分析精度高、操作简便、易于掌握等特点,可供Ⅰ、Ⅱ类地震台站使用。  相似文献   

最优化因子处理及加权多重回归模型   总被引：17，自引：0，他引：17  

汤志成  孙涵 《气象学报》1992,50(4):514-517

因子的优劣是回归分析的关键。故在建立回归方程时,一般除对预报因子进行直线相关普查外,还要进行非线性相关普查。如将原因子x用x~(-1)、x~(1/2)、x~2 、e~x、In x等函数形式进行变换。但由于这些函数形式有限,故不一定能找到最优的表达形式;为此冯耀煌等仅给出了x~a和e~(ax)两种通式,其中a为待  相似文献   

THE IMPACT OF NOAA SATELLITE SOUNDING DATA ON THE SYSTEMATIC FORECAST ERROR OF B-MODEL          下载免费PDF全文

Wang Zonghao  Mao Jianping  Huang Jihong  Arnold Gruber  Albert Thomasell  Tan Sun Chen 《Acta Meteorologica Sinica》1992,6(4):421-432

This paper is to examine the impact of satellite data on the systematic error of operational B-model in China.Em-phasis is put on the study of the impact of satellite sounding data on forecasts of the sea level pressure field and 500 hPaheight.The major findings are as follows.(1)The B-model usually underforecasts the strength of features in the sea level pressure(SLP)field,i.e.pressuresare too low near high pressure systems and too high near low pressure systems.(2)The nature of the systematic errors found in the 500 hPa height forecasts is not as clear cut as that of the SLPforecasts,but most often the same type of pattern is seen,i.e.,the heights in troughs are not low enough and those inridges are not high enough.(3)The use of satellite data in the B-model analysis/forecast system is found to have an impact upon the model'sforecast of SLP and 500 hPa height.Systematic errors in the vicinity of surface lows/500 hPa troughs over the oceansare usually found to be significantly reduced.A less conclusive mix of positive and negative impacts was found for allother types of features.  相似文献   

30—50天低频振荡和准双周振荡对持续异常的影响     

孙永罡  陈久康 《南京气象学院学报》1992,15(3):368-376

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贴地层通量与廓线关系的初步研究     

孙卫国 《南京气象学院学报》1992,15(4):558-565

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地震活动期小汤山温泉的水文地球化学效应     

王基华  金晓微 《地震研究》1992,15(2):205-209

本文介绍了自1987年5月开始观测以来,小汤山温泉溶解H_2、CH_4及电导率在地震活动期的变化特征,并对小汤山(以下统称为井)的映震能力进行了初步讨论。  相似文献   

用褶积积分和低通滤波方法处理沂水泉氡观测资料   总被引：1，自引：0，他引：1  

张昭栋  靖继才  高玉斌  张铸钢 《高原地震》1992,(3)

多年来的观测分析表明,影响沂水泉氧值变化的最大干扰是降雨。由于这种干扰存在着滞后效应,所以用一般相关分析难以将这种影响排除干净。本文采用褶积积分方法较好地排除了降雨对沂水泉氧观测的影响。并用低通滤波方法,探讨了沂水泉氧的长趋势变化。  相似文献   

震兆图象的远程遥联性     

王泽皋  孙佩卿 《内陆地震》1992,6(2):121-130

通过研究我国一些震情窗口成组震兆与大陆及边邻Ms≥7.0级地震的整体链式活动的对应关系,指出这些窗口的成组震兆具有远程遥联的特点。对这种特点的深入研究将有可能为我国大陆及边邻地区地震活动的总体大形势作出估计。  相似文献   

On the seismic regime network method     

Zegao Wang  Yan Guo  Shulian Li  Yinghua Dai  Peiqing Sun 《地震学报(英文版)》1992,5(2):245-255

In this paper, based on the previous study of practical use of seismic regime windows and seismic regime belts, the problem of establishing a “seismic regime network” consisting of “windows” and “belts” is further posed and discussed according to the observed fact that many “windows” and “belts” make responses to one earthquake. For the convenience of usage, the “seismic regime network” is divided into two classes, the first class and the second one. The former can be used in tendency prediction for long-term seismic activity in a large area, the latter used in short-term prediction in a small area. In this paper, after briefly discussing the physical significance of “seismic regime network”, it is pointed out that this simple and easily used method can be used to observe and extract seismic precursory information from a large area before a great earthquake, thus it can provide a reliable basis for the analysis and judgement of seismic regime tendency in time and space. No doult, this method is of certain practical significance. The Chinese version of this paper appeared in the Chinese edition ofActa Seismologica Sinica,13, 161–169, 1991. The English version of this paper is improved by Prof. Shaoxie Xu.  相似文献