沙漠化灾害监测评价信息系统空间数据分类编码研究   总被引：2，自引：0，他引：2  

王熙章  吴薇 《中国沙漠》1994,14(1):41-44

介绍本系统空间数据分类编码设计方案、原则及其特点，探索沙漠化灾害监测评价信息系统空间数据分类与编码规范化和标准化的途径，为沙漠化灾害信息的计算机存贮、管理、识别及提取奠定基础。  相似文献   

五寨4.8ML地震宏观考察与震害评估     

Survey Group of Wuzhai Earthquake 《山西地震》1995,(2):42-47

本文介绍了对１９９３的９月１１日五寨４．８ＭＬ地震的考察情况，确定宏观震中在五寨县丰兑坡与河曲县土沟村一带，震中烈度为６度。计算得出本次地震的总经济损失约１５万元。  相似文献   

珠江三角洲宏观经济发展与震后恢复方案     

黄昭庆  黄贯虹 《华南地震》1995,15(3):75-86

在投入产出综合平衡模型的基础上，在充分考虑珠江三角洲地区资源的条件下，结合该区未来经济发展的战略目标，建立了宏观经济发展的动态递推模型。利用该模型，借助系统优化算法，对珠江三角洲地区宏观经济的发展作出了最优规划，对该区未来的震害提出了最佳的恢复方案。由震害所致间接经济损失的系统分析，是结合原发展规划方案的对投资结构、产业结构作出的动态分析，可作为未来珠江三角洲地区产业的调整、投资、方向的改变，以主  相似文献   

Intensifying Earthquake Prediction in the Light of Action of International Decade for Natural Disaster Reduction     

Gao Wenxue  Gao QinhuaState Seismological Bureau  Beijing  China Institute of Geology  SSB  Beijing  China 《中国地震研究》1995,(2)

This paper is a review on earthquake prediction and forecast research,progress in earthquake prediction work and pre-estimation of earthquake hazard degree in China in recent years.It indicates that China is the first country,the government of which has promoted and organized the state administration department on reduction of seismic hazards and ensured the socialization of earthquake prediction and forecast in the world.A program of earthquake prevention and protection and hazard reduction based on the results of research on earthquake occurrence regularities and prediction of earthquake preparation trend has been completed,and hence the socialization of results of earthquake prediction and forecast research can be expected to be in practice.The practical seismological works in last 20 years indicate that the earthquakes are not considered to be unpredictable,but it is a challenge remaining to be accepted.We are willing to cooperate with all friends who are engaged in earthquake prediction and forecas  相似文献   

A Preliminary Study on the Probabilistic Estimation of Deaths from Future Earthquakes in North China     

Fu ZhengxiangCenter for Analysis  Prediction  SSB  Beijing  China 《中国地震研究》1995,(4)

During the period from 1800 to 1989,the degree of fatalities(?from earthquakes in North China(Lat.34.0°-42.0°N,Long.107.5°-125.0°E)varied exponentially with the frequency of earthquake events(N),namely:N=37.71 exp(-0.72?(E-logD,D:deaths).For the periods from 1988 to 1998 and from 1999 to 2009,the probabilities for earthquakes to cause one thousand or more deaths in North China are estimated to be 0.37 and 0.50,respectively,by using the Gumbel's extreme value theory.  相似文献   

The　research　of　a　solution　on　locating　optimally　a　station　for　seismic　disasters　rescue　in　a　city     

姚清林 《地震学报(英文版)》1995,8(1):135-142

ＴｈｅｒｅｓｅａｒｃｈｏｆａｓｏｌｕｔｉｏｎｏｎｌｏｃａｔｉｎｇｏｐｔｉｍａｌｌｙａｓｔａｔｉｏｎｆｏｒｓｅｉｓｍｉｃｄｉｓａｓｔｅｒｓｒｅｓｃｕｅｉｎａｃｉｔｙＱｉｎｇ－ＬｉｎＹＡＯ（姚清林）（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ，ＳｔａｔｅＳｅｉ...  相似文献   

MONITORING OF 1991 EASTERN CHINA FLOODING WITH POLAR ORBITING METEOROLOGICAL SATELLITES FY-1 AND NOAA          下载免费PDF全文

Xu Jianmin  Wang Dachang  Sa Yang  Xiao Qianguang  Feng Yurong 《Acta Meteorologica Sinica》1995,9(1):87-94

With polar orbiting meteorological satellites FY-1 and NOAA,flooding was monitored in the areas of the HuaiheRiver basin and the Taihu Lake region during June and July 1991.All satellite images from FY-1 and NOAA for concerned areas before and during flooding were examined.Thoseof cloud-free,with small amount of cumulus or thin cirrus were selected to exam the situation.Navigation and projec-tion were carefully performed,to ensure the projected images at different time overlap accurately with each other in 1—2pixels.Channel 1 (CH1) and Channel 2 (CH2) data of FY-1 and NOAA satellites with wavelength of 0.58—0.68μm and0.725—1.1μm were used to monitor the flooding.Albedo of Channel 2 and normalized vegetation index (NDVI) wereadopted as indicators to identify water body from land.With histogram and man-machine interactive methods,analysiswas done.In cloud-free condition,the two indicators identified the same area and scope of the water body.Totally cloud-free image in a large area is quite rare.To understand flood process,it is necessary to use more fre-quent images.It was investigated to distinguish water from land in partly cloudy condition.The result showed that whenthere is small amount of cumulus or thin cirrus,satellite images are still valuable in monitoring water body.In case ofmonitoring area covered with cirrus,vegetation index is useful,and while there is small amount of cumulus on land,albedo of Channel 2 can be used.Ten images from May 16 to August 18 of 1991 were examined.The results show that in the Lixiahe area,JiangsuProvince,the area submerged in total was the largest;along main stream of the Huaihe River,the Chuhe River,andaround the Chaohu Lake,a large percentage of area submerged;while in the Taihu Lake area,less field submerged.Flood monitoring was performed for 87 counties in the region concerned.These counties were put in order accord-ing to the percentage of submerged area in total.This order showed the extent of disaster at one view point.  相似文献   

建设数字地震 促进防震减灾     

王孝铣 《福建地震》2001,(4)

本文提出了“数字地震”的概念 ,讨论它的主要内容和问题 ,并对建设“数字地震”提出若干建设性意见。  相似文献   

四川省宁南县主要地质灾害特征及防御对策   总被引：1，自引：0，他引：1  

陈玉禄  苟宁刚  单成德  姚江宁  唐扬贵 《地质灾害与环境保护》2005,16(2):119-124

宁南县属地质灾害频发区。主要地质灾害点共有31处。威胁6757人的生命财产安全。其中对城镇发生直接威胁4处，学校威胁3处，度假山庄威胁1处，潜在经济损失达22765万元。本文在详细论述地质灾害体特征的基础上并提出了相应的防御对策，提出对当地居民构成重大生命财产威胁的共5处，需采取治理措施，以减少地质灾害的发生。  相似文献   

贵州省人为地质灾害及其防治     

张建江  杨胜元  裴永炜  赵国宣 《贵州地质》2007,24(4):298-301,305

通过"十五"期间贵州省人为因素引发的地质灾害及造成人员死亡和直接经济损失的统计分析,表明贵州省人为地质灾害十分严重。规范人类工程活动,保护国家和人民生命财产安全,加强人为地质灾害防治工作势在必行。  相似文献