【摘 要】
:
T Based on the analysis of tropical cyclone(TC)database in the Northwest Pacific(NWP)from 1945 to 2008,we not only extract the temporal variation of TC intensit
【机 构】
:
Laboratory of Environmental Mechanics
【基金项目】
:
the National High Technology Research and Development Program of China(863 Program;the Knowledge Innovation Program of the Chinese Academy of Sciences
论文部分内容阅读
T Based on the analysis of tropical cyclone(TC)database in the Northwest Pacific(NWP)from 1945 to 2008,we not only extract the temporal variation of TC intensity and frequency,but also give their spatial distribution both in the NWP and in the South China Sea(SCS).The results show that there is an observational increase of TC activities,which mani-fests as the enhancement of the power dissipation index(PDI)and the growth of TC frequency,especially for typhoons and strong typhoons.The inhomogeneous spatial distributions of TC frequency and intensity are also provided both in the NWP and in the SCS.For example,the region of Zhongsha Islands and Dongsbu Islands in the SCS(15°~22°N,115°~120°E),west to the Philippine Islands is the place with frequent occurrence of strong typhoons,asoong which the wind speed of 7 TCs in 64 years exceeds 60 m/s.
其他文献
In order to strengthen the leaching procedure, the chemical processes of leaching rare earths (RE) from the weathered crust elution-deposited rare earth ore wer
The bidentate phosphine oxide ligand 1,8-bis(diphenylphosphino) naphthalene oxide (NAPO) and its EuⅢ complex 1 Eu(TrA)3(NAPO) (TTA=2-thenoyltrifluoroacetonate)
21世纪顺利推进马克思主义中国化的希望和关键在于青年一代.在新的历史时期,高校要增强培养青年马克思主义者的使命感和自觉性,要从培养合格接班人、巩固意识形态领域指导地
高校学生公寓既是大学生学习、生活的主要场所,又是高校思想政治教育的重要阵地.本文通过分析高校学生党建工作在学生公寓开展存在的问题,提出加强和改进的途径和方法,旨在探
构建了一套桌面自适应光学系统性能测试系统,用以验证97单元自适应光学系统的校正能力.该测试系统主要由光源、快速控制反射镜、变形镜、Shack-Hartmann波前传感器、高速波前
随着社会主义市场经济体制的不断发展、完善,市场经济的价值规律也渗透到了党内生活。在社会结构深刻变动、利益格局深刻调整中,基层党组织维护党员利益的能力还比较有限,加
钢琴是乐器之王,如何有效并逐步提升钢琴演奏的教学效果值得学者们研究。本文从掌握钢琴的基本技术、掌握音乐作品的旋律、赋予作品充分的情感几个方面着手,简要地分析怎样才
介绍一种基于全球定位系统(GPS)和电子地图(GIS)的车辆路径诱导系统混合差值算法,实验结果显示,相比常用的Dijkstra’s算法,混合差值算法在布线时间上减少60%。
A hybrid al