十三. 二十一世纪地球物理中的信息技术和网络技术
(负责人：郑治真 沈萍 施学工)
Information and Network Technology in
21th Century
(Conveners: ZHENG Zhizhen SHEN Pin SHI Xuegong)
1.
考虑加权系数的全球观测应力场的长波分析
魏东平 左如斌
（中国科技大学研究生院 北京 100039）
（中国科技大学地球与空间科学系，合肥，230026）
Long
Wave Analysis of the Global Observed Stress Orientations
Based
on Weighted Coefficients
WEI
DONG-PING
Graduate
School at Beijing, University of Science and Technology of China, Beijing
100039
ZUO
RU-BING
Department
of Earth and Sciences, University of Science and Technology of China, Hefei,
230026
ABSTRACT The global surface is divided into a
series of 5ox5o element bins, each element having a spatial dimension of about
500-km. By using the weighted statistical analysis method, we get the average
stress orientation of each element based on the data coming from the World
Stress Map Project (WSMP) database. We then test whether the stress orientations
are not random distribution within bins that pass the Rayleigh test. We further
discuss the result of statistical analysis and test of the stress orientations.
The
results demonstrated that the weighted coefficients method can increases the
effect of high quality data in statistical analysis. In the meanwhile, the
weighted coefficient method decrease the possibility which the observed data
are the random distribution within the element bins, thus much possibly
represent the real matter than that of equal weighted coefficient method.
2. .
The Data & Image Manage System About Three_Dimensional Earth
Inner
(The Department of Information Engineering &Earth Physics of Chengdu Institute
of Technology )
ABSTRACT
The manage and application of data and image about three_dimensional earth inner structure is very significant ,because there are many data and images during the study of the three_dimension .It is very difficult to manage and reuse that if we used the traditional earth physical methods. So we develop a special system to deal with this difficulty.
We use the technology of Database and GIS to solve the problem.
In our Database system , we design the database structure ,meanwhile ,we develop the function models to deal with data maintenance and data format conversion. It meet the need of earth physical computing to do so.
I our GIS system, we first make the vertorgraph of the base map ,then create the SHP files, so we build the connection between the section plane and the images , User click the section line ,then could get the images.
3．
Morphology and Its Applications to DEM Interpolation
Feng Gui Lin Qi Wei
Dept. Of Electronic & Information, Jianghan Petroleum Institute,
Hubei, Jingzhou, 434102
Current status of DEM（Digital Elevation Model）interpolation method and the insufficiency of widely employed
interpolation methods are discussed in this paper. After carefully study the
characteristic of contour line and apply the basic theory of mathematical
morphology to DEM interpolation, take the advantage of image morphology
transform, such as the characteristic of monotony, expansibility and
anti-expansibility, a high precision algorithm for DEM interpolating from
contour line that based on image morphology transform was proposed. The
algorithm employs multi-scale-distance transform to interpolate terrain height
among contour lines, the result DEM can guarantee the smoothness of terrain and
at the same time ensure not lost original contour information. The method has
the advantage of precise interpolation results and the contour line that
extracted from resulted DEM not shifted from the original contour line.
4．Processing of Geomagnetic Micropulsation Signal by Wavelet Analysis
Liu Xianghong Zhao Zhengyu et al.
(College of Physics & Electronic Information, Wuhan University, Wuhan 430072)
Wavelet transform
is a new method in data processing and signal processing in recent years.
Wavelet analysis has both a good qualities in time domain and frequency domain
and is an ideal tool in analyzing unsteady signal. Signal and white noise can
be discriminated based on their different singularities in wavelet transform.
It is because that signal singularity has a positive lipschitz exponent while
noise singularity has a negative lipschitz exponent. Geomagnetic micro
pulsation signal can be well denoised based on wavelet analysis’
multi-resolution analysis feature. Results show that wavelet transform is a
powerful tool in analyzing and processing geophysical signal and it is much
better than traditional Fourier and short time Fourier transform in processing
unsteady geophysical signals.
5．The Develop Trend and Service Mode Study
about Scientific
and Technical Information of Earthquake
Li Hong Liang Kaili
（Seismological Bureau of Shandong Province Jinan 250014）
The enterprise development of scientific and technical information of earthquake has gone through the single function uses, integration of soft system and client/server period. Now, we are being the network age. Today, the computer technology, soft exploiting technology, communication and network technology are being rapidly developed. In this situation, how to face the changes about the enterprise development of scientific and technical information of earthquake, server function and librarian and reader consciousness and explore the sever mode and the way of development is starved for.
6．Integration of Web and database and its application to management of
scientific research projects
Liu Zhi, Tang Yanhong et al.
(Institute of Geology, CSB Beijing
100029)
Based on the current study of technology for integration of Web and database, a Web Site of China Sustainable Development Information was built using the Oracle8I Database and related Web development tool which are total Internet solution. This Web Site supplied dynamic and mutual query function for user and overcome some shorts of traditional Web Site. It has been provided for users, obtaining good result.
8．The software for data processing of conventional seismograph
calibration
Ma Baojun Xiao Yingchun
(Mudanjiang Seismograph Station, Mudanjiang 157009)
The software applies UCDOS (7.0 version) and Microsoft TURBOC (2.0 version) to compelling. It is chief employed in seismograph station compute of data that demarcate DD-1, DK-1 and SK763. The program has passed to test under UCDOS 6.0. The Chinese menu at present has be uesd in seismograph station of Mudanjing.