论江西气象培训体系改革与建设

从省级气象培训中心改革与建设,以及市、县气象局学习点和局校合作等方面,对江西气象培训体系改革与建设进行了论述,认为省级气象培训中心应以远程教育培训为主,开展全员基础业务和新技术、新知识的培训;市、县气象局是远程教育培训的学习点。要按照“创新教育培训内容、改进教育培训方式、整合教育培训资源、优化教育培训队伍、提高教育培训质量”的要求,建设有气象特色的人才培养体系,满足气象事业发展对各类人才的需求。     

论江西气象预报预测体系改革与建设

从改革思路、主攻方向和业务分工等方面,对江西气象预报预测体系改革与建设的主要内容进行了论述,认为预报预测体系是整个基本业务系统的核心,是实现预报预测准确率提高的关键,应按照中国气象局业务技术体制改革总体方案,结合江西经济社会发展的需要,开展天气、气候、气候变化、农业气象与生态、大气成分、人工影响天气、雷电等多轨道的预报预测业务,并紧紧依托气象基础业务系统,加强与有关部门和行业的合作,围绕提高气象预报预测准确率,以数值预报产品为基础,以信息处理技术为依托,综合利用多种监测资料和预报预测技术方法,以预报人机交互系统为工作平台,加强雷达、卫星等遥感应用产品对多轨道业务的支持,充分发挥预报员的作用,发展多轨道、无缝隙、精细化预报预测业务,连续滚动制作空间上完整、时间上连续的预报预测产品。     

Crustal structure in the Falcón Basin area, northwestern Venezuela, from seismic and gravimetric evidence

The Falcón Basin in northwestern Venezuela has a complex geological history driven by the interactions between the South American and Caribbean plates. Igneous intrusive bodies that outcrop along the axis of the basin have been associated with crustal thinning, and gravity modeling has shown evidence for a significantly thinned crust beneath the basin. In this study, crustal scale seismic refraction/wide-angle reflection data derived from onshore/offshore active seismic experiments are interpreted and forward-modeled to generate a P-wave velocity model for a 450 km long profile. The final model shows thinning of the crust beneath the Falcón Basin where depth to Moho decreases to 27 km from a value of 40 km about 100 km to the south. A deeper reflected phase on the offshore section is interpreted to be derived from the downgoing Caribbean slab. Velocity values were converted to density and the resulting gravimetric response was shown to be consistent with the regional gravity anomaly. The crustal thinning proposed here supports a rift origin for the Falcón Basin.     

Seismic attenuation in Faroe Islands basalts

We analysed vertical seismic profiling (VSP) data from two boreholes at Glyvursnes and Vestmanna on the island of Streymoy, Faroe Islands, to determine the magnitude and causes of seismic attenuation in sequences of basalt flows. The work is part of SeiFaBa, a major project integrating data from vertical and offset VSP, surface seismic surveys, core samples and wireline log data from the two boreholes. Values of effective seismic quality factor (Q) obtained at Glyvursnes and Vestmanna are sufficiently low to significantly degrade the quality of a surface reflection seismic image. This observation is consistent with results from other VSP experiments in the North Atlantic region. We demonstrate that the most likely cause of the low values of effective Q at Glyvursnes and Vestmanna is a combination of 1D scattering and intrinsic attenuation due to seismic wave‐induced fluid flow within pores and micro‐cracks. Tests involving 3D elastic wave numerical modelling with a hypothetical basalt model based on field observations, indicate that little scattering attenuation is caused by lateral variations in basalt structure.     

初探我国Argo浮标下潜深度标定

为了使剖面能停留在预定深度,通过水静力学角度对相应的浮标压载标定方法进行研究.试验表明,浮标重量改变1 g,就会造成大约10 m停留深度的变化.论文详细描述了用压力罐进行浮标压载重量标定的方法,并通过一台浮标的压载实验给出浮标配重计算方法.     

冷却塔托架约束装置在工程抗震中的应用

阐述了电力系统中冷却塔托架约束装置的结构创新及其在工程抗震上的应用,从而克服了传统托架结构与施工工艺存在的诸多弊端,并大大增强了托架支承系统抗御地震破坏的能力。     

Research on Separating Overlapped Explosion Recordings

By using wavelet analysis and the co-deduct method, under the condition that two explosions are supposed to have the same mechanism and strength, we separated the overlapped recordings successfully.     

Sedimentary Record of the Planation Surface in the Hoh Xil Region of the Northern Tibet Plateau

Miocene marl is the most widespread Tertiary stratigraphic record in the northern Tibet Plateau, termed the Wudaoliang Group in the Hoh Xil region and the correlative Suonahu Formation in the Qiangtang region. The uniform marl overlies red beds of the Eocene-Oligocene Fenghuoshan Group. The Wudaoliang Group is generally 100-400 m thick, but the thickest strata are 700-1300 m, located in the Haidinghu (Maiding Lake) and Tuotuohe (Tuotuo River) regions respectively. Based on observations from eight measured sections and outcrops, the thin-bedded marl, which varies in colour from grey-white to light brown-grey, is explained as a large-scale or serial lacustrine deposit stretching throughout northern Tibet.The Wudaoliang Group commonly crops out on geographic lowland at an average elevation of 4600 m above sea level within the mountain chains, showing concordant summit levels, e.g. the Fenghuoshan and Bairizhajia Mountains. These mountains with a flat ridge are considered to be remains of the palaeo-planati     

美国防震减灾工作的法制化管理简介

由中国地震局、全国人大教科文卫委员会、国务院法制办公室、国家质量技术监督局有关人员组成的防震减灾法制管理考察代表团一行8人 ,于 2 0 0 0年 4月 1 2～ 2 8日赴美国进行了防震减灾法制管理考察。代表团在美国期间 ,访问了美国联邦紧急事务管理局 (FEMA)、美国地质调查局 (USGS) ,考察了美国建设工程抗震设防的情况 ,特别与旧金山市政府进行了学术交流。双方主要就旧金山市政府自 1 989年洛马普列塔 7.1级地震后 ,在地震灾害防御方面所采取的对策措施进行了研讨和交流。美国是世界上地震多发、地震灾害严重的国家之一。因此 ,美国…