皖南黟县地质灾害分布自动成图与预警系统

Yixian county of Anhui geological disaster distribution automatic mapping and early warning system development

以皖南黟县地质灾害为研究对象,结合GIS技术开发了皖南黟县地质灾害分析预警系统—YXEWSys。系统基于具有地图参数的矢量电子底图,不但实现图件鹰眼浏览、数据库编辑修改、数据统计、属性查询等基础操作功能,还通过对地质灾害点的地理坐标、坡向、灾害种类和规模等属性数据库的管理分析,自动绘制完成地质灾害分布图。系统对地质灾害预警的功能实现,参考了显式统计预警和网格式预警方法,结合皖南黟县地质灾害研究区域实际情况,利用评价参数计算公式以及GIS空间分析技术设计出更为符合该区域地质灾害预警的方法。

In south anhui geological disasters yixian county as the research object,combined with GIS technology development the yixian county of anhui geological hazard analysis of early warning system-YXEWSys. System based on the features of map parameters of vector electronic map,not only realize map eagle eye view,database edit modification,data statistics,such as attribute inquires based operation functions,but also through the geological hazard geographic coordinates,slope,disasters to the type and scale of attribute database management analysis,automatic drawing complete geological hazard profile. Geological disaster warning system to the realization of the function of the,reference the explicit statistics warning and grid warning methods,combined with south anhui yixian county geological disaster research area actual situation,the use of evaluation parameter calculation formula and the GIS spatial analysis technology to design the more accord with the regional geological disaster warning method.