A study on digital isoseisms fast drawing method based on GIS — Take an example of Yunnan Province

Author

Shaohua Zhang ; Kun Yang ; Shuangyun Peng ; Quanli Xu ; Liang Hong ; JinPing Li ; Yongqiang Li ; Fanghao Zhang

Author_Institution

Eng. Res. Center of GIS Technol. in Western China, Kunming, China

fYear

2013

fDate

20-22 June 2013

Firstpage

1

Lastpage

5

Abstract

This paper discusses how to use the ArcEngine components and Orcale database to quickly draw the Yunnan Province digital isoseisms. Besides the current general ellipse model, the paper was the first time to complete the line source model of isoseisms drawing. At the same time, it improved the Binary search algorithm in order to quickly find closest active fault. Then the existing isoseisms file provided three correction methods: parameter correction, aftershocks correction and manual correction, which were respectively applied for the different data and purpose of the correction. Finally, taking an example of the simulation for Ning´er 6.4 and Lijiang 7.0 earthquake to demonstrate the method of fast drawing Yunnan digital isoseisms, and the method turned out to be feasible and practicable.

Keywords

computer graphics; earthquakes; geographic information systems; geophysics computing; object-oriented databases; relational databases; search problems; ArcEngine components; GIS; Lijiang 7.0 earthquake; Ning´er 6.4 earthquake; Orcale database; Yunnan Province; active fault finding; aftershocks correction; binary search algorithm; digital isoseisms fast drawing method; general ellipse model; manual correction; parameter correction; Attenuation; Azimuth; Earthquakes; Economics; Market research; Simulation; Tin; Key word-GIS; binary search; earthquake; isoseisms model;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoinformatics (GEOINFORMATICS), 2013 21st International Conference on

Conference_Location

Kaifeng

ISSN

2161-024X

Type

conf

DOI

10.1109/Geoinformatics.2013.6626151

Filename

6626151