Abstract

This paper presents an innovative, cost-effective and efficient web-based sharing system for geoscience information among the countries in East and Southeast Asia. The information system’s main components are organized following the Spatial Data Infrastructure (SDI) model. It also uses the Open Geospatial Consortium (OGC) Web Map Service (WMS) and Web Processing Service (WPS) for online spatial data rendition and processing, respectively. Free and Open Source Software (FOSS) are also used for other important spatial data processing functions. The geospatial contents of the information system are stored and managed using the open source software PostgreSQL and its PostGIS extension. The information system makes spatial data sharing more efficient and organized by formulating a hierarchical information content classification scheme and the option for the users to put up their own customized WebGIS portals. These give users the option to show their chosen geospatial contents on their own web-based platform. The information system also makes spatial data sharing more flexible by providing data owners the choice to determine the data access privileges for each user or group of users. It also provides module for processing, rendering and sharing Japan’s ASTER satellite images. The information system is called GSi for Geoinformation Sharing Infrastructure for East and Southeast Asia. The URL of the web-based information system is https://ccop-gsi.org/main/index.html.

Highlights

  • This paper presents an innovative, cost-effective and efficient web-based sharing system for geoscience information among the countries in East and Southeast Asia

  • Developing an information system for sharing geoscience information requires the use of Geographic Information System (GIS) software to make it more efficient and cost-effective for spatial information processing, management and storage [1] [2]

  • Developing an efficient and cost-effected Web-based Geographic Information System (WebGIS) system for sharing huge volume of geospatial information from geographically distributed data sources requires the formulation of web services that provide spatial information management and processing functions

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Summary

Introduction

Accessing geoscience information and GIS software that are saved and installed, respectively, in a remote server becomes the norm in recent years This kind of setup makes geoscience information and spatial data processing services highly accessible to many users, who just need internet access to run the GIS system and use the data anywhere in the world. Developing an efficient and cost-effected WebGIS system for sharing huge volume of geospatial information from geographically distributed data sources requires the formulation of web services that provide spatial information management and processing functions. This paper presents an innovative, cost-effective and efficient system for sharing geoscience information among the countries in East and Southeast Asia using SDI, OGC web services and Free and Open Source Software (FOSS). This paper outlines the flexible and innovative geospatial data sharing concepts of the information system

GSi Components
Applications
Web Services
Database
GSi Information Categories
Map Data
Map Layers
Map Catalogs
WebGIS Portals
GSi User Information Access Privileges
Data Download
Discussion
Conclusion

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