International Geologiical Congress - Oslo 2008


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IEI-20 Free and open-source geospatial software: applications in Earth Sciences and recent development


Sharing and disseminating of geoscience information using the open source web GIS software


JongGyu Han, KIGAM (Republic of Korea)
KwangHoon Chi, KIGAM (Republic of Korea)
ByungHyuk Yoo, KIGAM (Republic of Korea)
YeonKwang Yeon, KIGAM (Republic of Korea)
JaeHong Hwang, KIGAM (Republic of Korea)


In this paper, we describe our experiences of constructing a WebGIS server system for providing geoscience information at KIGAM (Korea Institute of Geoscience & Mineral Resources), Republic of Korea, using the popular open-source WebGIS software MapServer developed by the University of Minnesota. It supports OGC (Open Geospatial Consortium) web specification standards, amongst others WMS (Web Map Service), WFS (Web Feature Service) and WCS (Web Coverage Service). MapServer supports raster data formats like GeoTIFF, PNG and JPG and can access additional raster and vector formats through GDAL (Geospatial Data Abstraction Library) and the OGR Simple Feature Library, respectivly. For all datasets on-the-fly projection is supported. The open-source implementation of MapServer allows users to work through its source code and understand its algorithms and implementation. The users are welcome to participate in the development of the software to exactly meet their needs.

We developed an application system based on MapServer, which could be used to share and disseminate geoscientific information such as geological maps, airborne magnetic anomaly maps, gravity maps and mineral deposit maps through the internet. This system has to be able to hanlde various data formats and data are distributed by several organizations. According to our experience, MapServer with the WMS feature successfully linked original data from the data provider's local servers. The results shows that open-source WebGIS Software, including MapServer, suits our purpose and we can extend its application to other research field such as natural resource management and collaboration works.


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