漳州地区热田的水热活动及其成因

本文通过漳州地热田及其周围地区的水热活动、地质构造特征及人工爆破、重力、地磁、电性结构、地震活动性等综合地球物理场之间关系分析，得出漳州地热田是高热异常背景下产生的对流型水热系统：深切到上地幔的ＮＥ向长乐－南澳断裂、ＮＷ向九龙江断裂及Ｅ－Ｗ向南靖－厦门断裂控制了地下水的深循环，使大气降水得以下渗到〉３ｋｍ深度，被地温加热并富集起来，在静水压力作用下沿通道－断裂带的交汇部位上涌。热田区破碎的岩石导致     

南海环境要素的年际变化与1982—1983年EI Nio

本文在大量调查资料的基础上,分析了1975—1984年南海环境要素的年际变化及其在1982—1983年的表现。研究发现,与正常年份比较,各要素在1982—1983年的表现都比较特殊,沿岸江河径流量猛增;气温、水温、盐度、pH值偏低;海水含氧量偏高,温、盐、密跃层强度增大;南海暖流和黑潮南海分支流轴的平均位置移到调查海区的最南面。作者认为,这一异常现象与1982—1983年赤道太平洋海域发生的强E1 Ni(?)o过程密切相关。     

桶形基础平台三维有限元稳定性分析

以我国第一座桶形基础采油平台工程实例为原型，采用三维有限元计算方法对桶形基础稳定性分析。平台在波浪、风等荷载作用下，其稳定性不仅与平台的整体结构有关，而且与桶形基础及其周围土体相互作用相关。在计算中，利用薄层摩擦单元模拟土与结构间的相互作用，取得了很好的效果。分析结果表明桶形基础采油平台在设计条件下运行是较为稳定的。     

南黄海鳀鱼(Engraulis japonicus)产卵场小型桡足类的数量分布

2000—2002年6月在黄海西南侧、山东半岛南部鳀鱼产卵场专项调查中,由底至表垂直拖网获得浮游生物中网(网孔径160μm)浮游动物样品,作者就该产卵场内四种主要小型桡足类(体长<1mm)双刺纺锤水蚤、小拟哲水蚤、拟长腹剑水蚤和近缘大眼剑水蚤的数量分布进行分析。在连续三年的6月,测区内均以小拟哲水蚤和拟长腹剑水蚤数量最多。四种小型桡足类的数量空间分布虽有一定的种间、年间差异,但总体上来说,四种小型桡足类的密集中心大多分布于山东半岛沿岸或近苏北浅滩沿岸水域。相关性分析表明,双刺纺锤水蚤和近缘大眼剑水蚤与底层水温呈正相关,与盐度呈负相关,拟长腹剑水蚤与底层水温呈负相关,与盐度呈正相关。小拟哲水蚤与温度的相关性较大。双刺纺锤水蚤和小拟哲水蚤与鳀鱼仔、稚鱼的数量分布有着较为显著的正相关。     

Algorithm for HF radar vector current measurements

A new algorithm is proposed, called the stream function method (SFM) for producing vector current maps from radial data measured by dual-site high frequency surface wave radar (HFSWR). In SFM, a scalar stream function is constructed under some oceanographic assumptions. The function describes the two-dimensional (2-D) ocean surface water motion and is used to obtain the distribution of vector currents. The performance of SFM is evaluated using simulated radial data, which demonstrates that SFM has advantages over typical vectorial combination methods (VCM) both in error acceptance and robustness, and excels another method based on least-squares fitting (LSF) in recovering the complicated current models. Furthermore, SFM is capable of providing the total currents based on radials from single-site radar. We also test the assumptions of horizontal non-divergence in the simulation. The new algorithm is applied to the field experiment data of Wuhan University’s ocean state measuring and analyzing radar (OSMAR), collected in the coastal East China Sea during April 11–17, 2004. Quantitative comparisons are given between radar results by three current algorithms and in-situ current meter measurements. Preliminary analysis of the vertical current shear is given based on the current meter measurements.     

台湾海峡及其西边地区正常地震动态及危险性特征

本文从地震的时，空分布特征，区域应力场动态，能量释放方式，ｂ值及震群特征６个方面研究了台湾海峡及其西边地区地震活动的正常动态及异常特征。结果表明，具有前兆意义的变化模式表现为区域地震活动在时间，空间及功能方面的有序性变化，即：（ａ）地震空间分布由分散转为集中，形成条带或空区；（ｂ）断裂活动由多组转为单一，应力场趋向一致；（display status     

Locomotor activity rhythm in the Japanese eel Anguilla japonica elvers

Under artificial LD cycles(6,12,18 L),the elvers of Japanese eel,Anguilla japonica,showed a 24 h cycle of locomotor activity rhythm being most active at light transitions:the eels' activity rose to a primary peak after lights-off,followed by a quiescent period during which they buried into the shelters or lying motionlessly on sand for most of the time,and then reached a secondary peak before lights-on.Elvers could resynchronize their activity rhythm with a new photo cycle within 4 d.Moreover,their activity level at dark phase significantly increased as the light period was prolonged:higher activity levels during shorter dark period.However,the elvers did not display clearly the existence of a circadian rhythm under constant light or dark conditions.The timing of daily activity rhythm evidenced in the Japanese eels may occur through the action of the LD cycles with a weak participation of an endogenous circadian system.In all the LD cycles,over 99% of the activity occurred in the dark phase,indicating that the eels were always nocturnally active no matter what time of day it might be.Under 12 L conditions,the eels' activity level and the time outside sand were significantly elevated both at light and dark phases as temperature increased from 10~15 to 20~25 ℃.The activity rhythm pattern(i.e.,two peaks occurring around light transitions) did not apparently change among temperatures.However,in contrast with the primary activity peaks immediately after lights-off at 20 and 25 ℃,the timing of the primary peaks at 10 and 15 ℃ showed a latency of a few hours following lights-off,indicating the inhibiting effect of low temperature on the eels' activity.     

A NUMERICAL COMPUTATION OF THE WIND-DRIVEN CURRENT IN THE BOHAI SEA

On the basis of shallow water equations, a 2-dimensional model for the wind-driven current is developed in this paper to simulate the mean wind-driven circulation and sea-surface elevation fields respectively in winter and summer, and to describe the general nature of the wind-driven current in the Bohai Sea.Numerical results show that the patterns of the wind-driven circulation in Bohai are mainly the cyclonic circulation in winter and both cyclonic and anticyclonic circulations in summer. A theoretical argument based on vorticity is put up to explain the generating-mechanism of large eddies near the strait, which are considered to be the direct results of the wind stress interaction with topography gradients.     

絮凝法强化大生活用海水一级处理研究

研究了无机絮凝剂石灰、硫酸铝、聚合氯化铝、聚合硫酸铁和氯化铁单独使用及其与有机高分子絮凝剂聚丙烯酰胺（PAM）配合使用时强化大生活用海水一级处理的效果，结果表明，无机絮凝剂与有机絮凝剂配合使用时有很好的强化效果，COD去除率最高达61%，且对SS和BOD也有一定的去除效果。     

辽东湾北部海域营养状况与趋势评价

根据 1999-2006 年 6-8 月的调查数据,分析辽东湾北部海域的营养水平及变化趋势,以了解辽东湾北部海域营养水平的分布特点及污染状况.由 E 值和 CN/CP 值的总体评价结果来看,辽河口、双台子河口和大凌河口海域的富营养化程度较高,属于磷中等限制潜在性富营养区,而锦州湾海域污染相对较轻,属于中度营养区;在时空分布上,辽东湾北部海域 1999 年与 2006 年污染较为严重,中间年份污染相对较轻.针对辽东湾的具体环境用 CN/CP 值的评价模式更能揭示出营养盐限制对富营养化的影响.