天津海域春夏季节游泳动物的组成特征

根据2014年5月及8月在天津海域进行的底拖网调查资料,对该海域游泳动物组成特征进行了初步研究。结果表明,在该海域共捕获游泳动物36种,平均资源密度为126 297.13个/km~2和1 494.40 kg/km~2。以个体密度计算群落多样性,Shannon-Wiener种类多样性指数H′平均为1.803,Margalef种类丰富度指数d平均为0.592,Pielou种类均匀度指数J平均为0.537。资源密度及物种多样性,8月均优于5月。优势种为口虾蛄,重要种为火枪乌贼、日本、斑、六丝钝尾虾虎鱼。天津近岸海域游泳动物渔业资源呈现出低质化的趋势。     

“SZ-4”飞船高度计天线指向角反演方法

利用2003年2月7到8日“SZ-4”高度计的波形数据,经过波形数据预处理(波形为1 s的平均、去除热噪声和波形归一化)后,对海面回波波形后沿进行拟合,计算出了高度计天线的指向角,结果表明,“SZ-4”飞船高度计天线的指向角几乎全部在0.024°以内,天线指向在计算时间内比较稳定.     

遥测地震台网实时处理系统

本文介绍了采用程序驻留内存技术，利用系统的硬件中断和时钟中断，在微机上研制成功了实时处理系统。该系统具有前后台处理功能，能够在主机ＣＰＵ中同时运行多道程序，使数据采集、事件检测、数据转存、地震定位等均能进行实时处理。该系统可用于区域遥测地震台网和地方遥测地震台网的实时处理。     

天山地区SAR数据雪盖制图研究

在分析合成孔径雷达（ＳＡＲ）成像机理及雪盖参数散射特性的基础上，利用航天飞机搭载的成像雷达（ＳＩＲ－Ｃ）获取的天山Ｃ波段、多极化ＳＡＲ数据，进行提取雪盖信息的实验。数据通过预处理、散射系数图像的计算、去噪、入射角改正等处理后，利用ＢＡＹＥＳ监督分类方法产生该地区的雪盖分类图。实验结果表明，利用多波段、多极化ＳＡＲ进行雪盖制图是可行的。     

Co-seismic ground deformation and source parameters of Mani M7.9 earthquake inferred from spaceborne D-InSAR observation data

In recent ten years, Differential Interferometric Synthetic Aperture Radar (D-InSAR) has become a major technique of space-based geodesy together with GPS, VLBI and SLR. Interferometric Synthetic Aper-ture Radar (InSAR) has many advantages, such as all-weather, all-time, strong stability and dynamic survey property, and no requirements for ground sta-tions. In particular, the surveying results by InSAR can cover a large range of the ground deformation field in succession and has gr…     

Use of an Annelid Pollution Index for monitoring a moderately polluted littoral zone

After two sampling surveys, in 1974–1975 and 1984, and with the use of an Annelid Pollution Index, the existence of a degraded Cystoseira stricta community has been established. The community studied was present on superficial rocky substrates on the French Mediterranean coast in unpolluted or moderately polluted zones although, for the latter, pollution reduction measures had been put into effect. The most polluted station in 1984 was close to the effluent of a coastal village sewage treatment plant.     

The Sedimentological Knowledge Tree:Significance,Method and Progress

正On the platform of the Deep-time Digital Earth Program(DDE),sedimentary data are essential for achieving its scientific objectives.These data will take stratigraphic units as their core data carrier,for quantitative or qualitative data analysis.The DDE Sedimentary Data Group is responsible for the management of the sedimentary data on the DDE platform and has now developed into a group of nearly 40 disciplinary experts.This groups main tasks are constructing sedimentary knowledge     

淄博市洪山、寨里煤矿地下水串层污染形成原因及防治

淄博市洪山、寨里煤矿区隐伏的奥陶系灰岩裂隙岩溶水污染严重。水质污染突发于矿坑全面闭坑以后，污染范围与矿坑水区一致，地下水污染组份与矿坑水的高含量组份相同。水质恶化主要由矿坑水串层污染所致。在此针对串层污染形成原因及影响因素，提出了防治对策。     

热释光断代技术测定断层活动时代可能性的研究

本文根据多年来研究断层活动所积累的热释光年龄资料和断层运动过程中各种温、压条件变化的模拟实验结果,阐述了断层运动所产生的摩擦升温有可能使断层面上乃至断层带内某些矿物原有的热释光“退火”,初步探讨了用热释光测年技术测定断层活动年代的可能性     

Re-Os Dating of Chalcopyrite from the Lala IOCG Deposit in the Kangdian Copper Belt, China

<正>This study focused on the typical Precambrian copperiron-gold-uranium deposits in the southwestern margin of the Yangtze block,such as the Lala in Huili,Dahongshan in Xinping,Yinachang in Wuding,and Chahe in Yuanjiang.Through systematically sampling of rocks,mineral and single mineral samples,this study discussed the continental geodynamics,age of magmatic rocks and metallogenic epoch,coupling relationship between polymetallic elements and ore-forming fluid,and the