印度洋与南亚、西亚沿海的海洋战略角逐（下）     

刘中民 《海洋世界》2008,(12):73-79

美国对印度洋地区的掌控能力明显增强 在冷战时期，美国就在印度洋地区布有海外军事基地。美国印度洋基地群以迪戈加西亚基地为核心，辐射至印度洋沿岸各港口，特别是阿拉伯湾、波斯湾和红海地区。迪戈加西亚地处印度洋中心位置，是印度洋空中和海上交通枢纽，战略地位十分重要。自1971年美国海军从英军手中接管以来，  相似文献   

Contrast　between　the　Climatic　States　of　the　Warm　Pool　in　the　Indian　Ocean　and　in　the　Pacific　Ocean     

MENGXiangfeng WUDexing 《青岛海洋大学学报(英文版)》2002,1(2):119-124

Based on the analysis of Levitus data, the climatic states of the warm pool in the Indian Ocean (WPIO) and in the Pacific Ocean (WPPO) are studied. It is found that WPIO has a relatively smaller area, a shallower bottom and a slightly lower seawater temperature than those of WPPO. The horizontal area at different depths, volumes, central positions, and bottom depths of both WPIO and WPPO show quite apparent signals of seasonal variation. The maximum amplitude of WPIO surface area‘s seasonal variation is 58% larger over the annual mean value. WPIO‘s maximum volume variation amplitude is 66% larger over the annual mean value. The maximum variation amplitudes of the surface area and volume of WPPO are 20.9% and 20.6% larger over the annual mean value respectively. WPIO and WPPO show different temporal and spatial characteristics mainly due to the different wind fields and restriction of ocean basin geometry. For instance, seasonal northern displacement of WPIO is, to some extent, constrained by the basin of the Indian Ocean, while WPPO moves relatively freely in the longitudinal direction. The influence of WPIO and WPPO over the atmospheric motion must be quite different.  相似文献   

天然水,土壤和岩石中金与腐殖质的相互作用     

В.  ГМ 王义为 《物探化探译丛》1991,(5):50-53

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太平洋命名的历史     

方陵生 《海洋世界》2006,(11):36-39

在一个风帆远航为海上最快速交通工具的时代里,大陆和海洋向着不可知的远方延伸着,人类显然无法测定各大海域的界限。在一些有关混沌初开的神话传说里,人类深感大海的浩渺辽阔,以人类自身的渺小,如何给这片无边无际的永恒大海命名呢?  相似文献   

Characters of the Pco2 and CO2 Flux in the East China Sea in Autumn     

纪雷  崔鹤  辛淑平  王军  张龙军  陆贤昆 《中国海洋湖沼学报》2003,21(2):180-186

Pco2 of air and seawater samples from the East China Sea(ECS) were measured in situ in autumn, 1994,Ocean currents,terrestrial fluviation,biological activities,etc.,Pco2 char-acters in air and seawater were investigated,CO2 flux and its character in the East China Sea are discussed on the basis of the Pco2 profiles of air and seawater,It was clear that the nearshore was the source of CO2;and tht the oulter sea area was the sink of CO2; and that the shelf area of the EXS is a net sink for atmospheric CO2 in autumn.  相似文献   

风暴潮与天文潮非线性相互作用结果及有关问题的分析     

高焕臣 《海洋通报》1994,13(2):19-23

分析了风暴潮与天文潮非线性相互作用的结果，给出了增、减水的解析表达式，指出了潮汐预报精度在增、减水分离中的重要性，提出了提高潮汐分析预报精度的方法。  相似文献   

能源新秀——可燃冰     

江米 《河南国土资源》2006,(3):37

就在人们担心石化能源将被耗尽时,科学家们在海洋和冻土带发现了一种新型洁净能源——可燃烧的“冰”。其主要成分是甲烷与水分子(CH4·H2O),学名为“天然气水合物”,是天然气和水在一定的温度、压力条件下相互作用所形成的貌似冰状可以燃烧的固体,俗称可燃冰。据估算,世界上可燃冰所含有机碳的总资源量相当于全球已知煤、石油和天然气的2倍,可满足人类1000年的需求。这无疑给未来的能源需求带来了福音,引起了人们的广泛关注。可燃冰的发现纯属偶然。在上世纪30年代,为了输送天然气,铺设了输气管道,但工程人员发现,一些输气管经常奇怪地被…  相似文献   

硬质合金钻头与岩石在钻进时的相互作用     

С.  СЯ 丁方维 《探矿工程译丛》1993,(3):42-45

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倾听地球的诉说—关于地震相互作用的述评     

罗夫  LJ 李丽 《地震科技情报》1993,(12):28-29

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Southern Meridional Atmospheric Circulation Associated with IOD     

LIU Na CHEN Hongxia 《中国海洋大学学报(英文版)》2006,5(2):99-105

Using the monthly wind and sea surface temperature （SST） data, southern meridional atmospheric circulation cells associated with the Indian Ocean Dipole Mode （IOD） events in the Indian Ocean are for the first time described and examineS. The divergent wind and pressure vertical velocity are employed for the identification of atmospheric circulation cells. During the four different phases of the positive IOD events, the anomalous meridional Hadley circulation over the western Indian Ocean shows that the air rises in the tropics, flows poleward in the upper troposphere, sinks in the subtropics, and returns back to the tropics in the lower troposphere. The anomalous Hadley circulation over the eastern Indian Ocean is opposite to that over the western Indian Ocean. During positive IOD events, the meridional Hadley circulation over the eastern Indian Ocean is weakened while it is strengthened over the western Indian Ocean. Correlation analysis between the IOD index and the indices of the Hadley cells also proves that, the atmospheric circulation patterns are evident in every IOD event over the period of record.  相似文献