全球海温距平对月预报影响的数值试验

对1992年7月19日个例，进行了有、无海温距平的对比数值试验，研究了海温距平对月预报的影响。个例试验结果表明，海温距平对月预报的影响是重要的。海温距平不仅对全球降水量的影响明显，而且对温度场预报的影响也很明显。大气（温度、降水和高度场）对异常海温强迫开始响应的时间大约是10天。     

长江上、中游地区春季首次大降水天气形势分析

该文普查了１９６１－１９９４共３４年长江上、中游地区春季首次大降水的日期及环是到：春季首次大降水大多出现在４月份；高藏高原以东的低值系统以及来自西伯利亚的冷空气南下补充是导致大降水的两个必要条件。     

THE STUDY ON THE WINTERTIME STRATOCUMULUS CLOUDS OVER ÜRÜMQI,XINJIANG OF CHINA——NUMERICAL MODELING OF STRATOCUMULUS CLOUDS

On the basis of the conceptual model,the development of wintertime stratocumulus cloud has been simulated by using a planetary boundary layer/cloud physics model.The main characteristics of the cloud structure and evolution obtained from the simulation are consistent with those from observations.By analyzing the modeled results,some details of the cloud structures and microphysics processes are discussed.     

THE MICROPHYSICAL STRUCTURE OF SNOW CLOUDS AND THE GROWTH PROCESS OF SNOW PARTICLES IN WINTER IN XINJIANG

The microphysical structure of snow clouds and the growth process of snow crystals were observed by means of instrumented aircraft,weather radar,snow crystal observations etc.in Urumqi region during the winter of 1982.The analysis of three cases show that about 70% of snow mass growth is produced in the lower layer below 2000 m under the cold front,and that the concentration of ice crystals is as high as 60 L^-1 and the supercooled water is absent in lower clouds.We may infer that the deposition of ice crystals and the aggregation of snow crystals are important processes for the snow development.The microphysical structure of the snow band near the front aloft and its characteristics as a seeder cloud are also described in this paper.     

Petrological Study on the Ductile Shear Zones in the Core of the Eastern Qinling Orogenic Belt in Western Henan

A series of ductile shear zones of the overthrust and strike-slip-types and related ductile shear metamorphicrocks, including tectonic melange and mylonites. were formed in the core of the Qinling orogenic belt in thecourse of the Caledonian-Indosinian ductilc and brittle-ductile reworking. The study on their petrography. va-riations in composition and conditions of formation is conducive to revealing the metamorphism-deformationhistory of the core of the Qinling orogenic belt and further to understanding the dynamic mechanism of its evo-lution.     

江西含铜（金钼钨）斑岩体的主要特征

江西含铜(金、钼、钨)斑岩体的K-Ar法及Rb-Sr等时线法同位素年龄在205～80Ma集中在175～130Ma。根据其产出的环境,岩石的主、副矿物组合,微量元素、稀土元素,硫、氧、锶同位素特征以及成岩的温度及压力的估算。它们形成的温度较高(≥800℃),侵位较浅(≤3.7km),物质来源较深(下地壳),并受上陆壳物质混染。     

Whole-rock Sm-Nd,Rb-Sr and zircon Pb-Pb dating of the metamorphic complex in the interior of qinling orogenic belt,western Henan,and their implications with regard to crustal evolution

The comprehensive results of whole-rock Sm-Nd and Rb-Sr and zircon Pb-Pb dating suggest that the Qinling Group in the Qinling orogenic belt, northwestern Henan was formed at about 1200 Ma. The complex in the interior of the orogenic belt experienced strong reworking in response to two great thermal cycles — the Jinningian and Caledonian cycles. Further disintegration of the Qinling Group delineated at present seems highly possible.     

混合相层状云系模式和中尺度低涡云系的实例模拟

在Ａｎｔｈｅｓｅｔａｌ．的中尺度模式基础上引入胡志晋的双参数层状云模式并重新编制了程序，构成一个包含三种水相态和比较详细云物理过程的三维层状云系模式。为保持在较长时步中计算的稳定和精度，对微物理过程的计算采用混合格式，少数过程采用时间分裂格式，在相变过程的处理上设计了同时计算不同相态相变的参数化方案，按Ｌａｇｒａｎｇｉａｎ方法设计了粒子下落格式。用干模式、积云参数化模式、两相显式模式和本文模式对两个中尺度低涡个例作了模拟，对比分析不同模式的模拟能力。结果表明本文模式对涡环流结构、云场和降水分布的摸拟比其他模式更合理，更接近实况。     

强震活动迁移性图象的研究：以华北地震区为例

以华北地震区７级以上强震活动的震中迁移图象为例，揭示了我国各地震区带内的强震震中迁移有以下基本迁移特性：强震震中在每完成一次迁移后均将改变其原来迁移运动的方向和速率，即改变其迁移运动的速度。因此，不论是时间意义上还是地点意义上，在强震震中迁移的前方将存在着一个未来强震危险性较小的前向扇形时空安全区，未来一次强震发生在这个扇形时空安全区内的可能性不大。并对强震震中这种普遍的变速度“扭头”或“掉头”迁