星载激光后向反射镜阵列的技术参数

我国的HY-2海洋二号卫星已处于研制之中，它将装备星载激光后向反射镜阵列，以便实施星载激光定轨。依据对星载激光后向反射镜阵列的研制实践，提出了完整表述星载激光后向反射镜阵列技术参数的建议。     

南海万安盆地地热演化史的初步研究

热演化史研究是盆地模拟中的重要环节，通过其研究可以为烃源岩成熟度史、生烃史、排烃史模拟提供必要的参数，准确地评价盆地的油气资源。     

赤道深层急流动力机制初步探讨

多年现场观测揭示,在大洋深层许多区域存在出人意料的高能区,诸如在赤道1000～3000m深度间存在着东西流向随深度交替变化的急流,本文提出连系不同密度水体输运的局部浮力振荡所产生的波动以及关连的能量辐射和沿赤道产生的局部能量辐聚是形成赤道深层急流的主要动力机制.本文结果还揭示,铅垂向湍粘系数和湍扩散系数的大小与赤道深层急流的结构和强度间存在密切的关系.对应大的铅垂向湍粘系数和湍扩散系数,急流强度减弱且其纬向相干尺度和铅垂尺度增大.另外不同周期的浮力振荡产生不同结构和强度的急流.振荡周期越长,急流的核心位置离东边界越远、沿赤道的相干尺度也越大.     

前苏联七十年海冰研究回顾

本文简要介绍了前苏联近七十年来海冰研究的主要成果及其采用的一些预报方法。     

Zn^2＋对缢蛏胚胎和幼虫的效应及EDTA解毒作用

本文研究了Zn~(2 )对缢蛏受精卵、担轮幼虫、D型面盘幼虫和稚贝生长发育的影响,及EDTA对上述不同发育阶段生物体中Zn~(2 )的解毒作用。     

Dynmnic Response Analysis for Embedded Large-Cylinder Breakwaters Under Wave Excitation

A numerical model is developed for dynamic analysis of large-cylinder breakwaters embedded in soft soil. In the model, the large cylinder is taken as a rigid body divided into elements and the soft soil is replaced by discrete 3D nonlinear spring-dashpot systems. The numerical model is used to simulate the dynamic response of a large-cylinder breakwater to breaking wave excitation. The effects of the dynamic stress-strain relationship models of the soil, the radius and embedded depth of the cylinder, the nonlinear behaviors of the soil, and the limit strength condition of the soil on the dynamic responses of the large-cylinder structure are investigated with an example given. It is indicated that the above-mentioned factors have significant effects on the dynamic responses of an embedded large cylinder breakwater under breaking wave excitation.     

超声辐射对牟氏角毛藻的生物效应研究

设计了一个超声频率，超声功率和辐射时间3因素4水平的正交实验，研究超声辐射对牟氏角毛藻的生物效应。实验结果表明，超声频率对牟氏角毛藻的生物效应显著，而超声功率的辐射时间的影响相对较小，在正交实验所确定的最佳超声辐射条件下，牟氏角毛藻生长速率常数最高可达0．348d^-1，是对照组的1．78倍，并脂肪酸不饱和度最高可达68．4％，比对照组提高5．2％，主要不饱和脂肪酸的百分含量均可得到不同程度的提高。     

0516号热带风暴过程分析

利用气象海洋数据资料和卫星遥感图片,分析研究了2005年第16号热带气旋"韦森特"(VICENTE)的特征,从最先的初始扰动到自身环流的分裂发展重组过程,以至当时周围相对应的大气环流,发现该热带气旋活动过程具有很多特性。对其移动过程进行的综合分析表明,只要存在合适距离等一定有利的条件,弱的两个涡旋之间完全可以发生强的作用力,高空辐散场的抽气作用对气旋的发展有极好的作用,所得的结论可对今后的预报提供一些启示和参考。     

潮汐对瞬态气候响应模拟的影响研究

In this study, the impact of oceanic processes on the sensitivity of transient climate change is investigated using two sets of coupled experiments with and without tidal forcing, which are termed Exp_Tide and Exp_Control,respectively. After introducing tidal forcing, the transient climate response(TCR) decreases from 2.32 K to 1.90 K,and the surface air temperature warming at high latitudes decreases by 29%. Large ocean heat uptake efficiency and heat storage can explain the low TCR in Exp_Tide. Approximately 21% more heat is stored in the ocean in Exp_Tide(1.10×10~(24) J) than in Exp_Control(0.91×10~(24) J). Most of the large ocean warming occurs in the upper 1 000 m between 60°S and 60°N, primarily in the Atlantic and Southern Oceans. This ocean warming is closely related to the Atlantic Meridional Overturning Circulation(AMOC). The initial transport at mid-and high latitudes and the decline in the AMOC observed in Exp_Tide are both larger than those observed in Exp_Control. The spatial structures of AMOC are also different with and without tidal forcing in present experiments. The AMOC in Exp_Tide has a large northward extension. We also investigated the relationship between AMOC and TCR suggested by previous studies using the present experiments.     

Elemental geochemical records of seafloor hydrothermal activities in the sediments from the Okinawa Trough

The major and minor element contents in the sediment core H9 from the hydrothermal fields of the Okinawa Trough show a sharp change at the depth of 80 cm. The elements enriched in the upper 80 cm core are those enriched in the hydrothermal deposits and in the surface sediments recovered from the hydrothermal fields in the trough, which indicates the input of hydrothermal materials. Comparing with other hydrothermal sediments from Mid-ocean Ridges or the Lau Basin, the degree of the enrichment of elements iron, copper,cobalt, and nickel is relatively low. However, the enrichment of elements manganese, lead, arsenic, antimony and mercury is remarkable. The average contents of these elements in the upper 80 cm core sediments are three to six times those in the lower section, and 3~12 times those in the surface sediments which are not influenced by hydrothermal activities. Hydrothermal activities have contributed significant manganese, lead, arsenic, antimony and mercury to the sediments, and these elements are distinct indicators for the hydrothermal activity in the Okinawa Trough. The significant enrichment of these elements in Core H9 upward from the depth 80 cm indicates the start or the significant enhancing of the hydrothermal activity in this area at about 5 740 aB.P. The average accumulation rate of manganese during this period is about 40 461 μg/(cm2·ka), which is similar to the hydrothermal sediments in the Lau Basin or the East Pacific Rise.