Past and present through a time-series spatial information system: Continuity and discontinuity of settlement in Northeast Thailand

1. (1)模拟空间资料的数字影像档案：将主要来自Srisakra Vallibhotama收藏的约550幅连续照片和约250幅地形图以数字化影像档案的形式存档。(2)地点描述：Srisakra调查的大约1000个地点的描述以地理参考资料输入数据库。Srisakra本人和Walailak Songsiri在日本期间集中从事这项工作。寺庙建立的记录与寺庙地理位置的参考资料一起被整合到NETVIS中。我们对泰国东北部南部的高棉遗址和泰国东北部的土堤灌溉工程进行了多次实地调查。我们还收集了一些关于现有农村社区的基本数据集。我们未来的任务是将它们整合到EcoNETVIS4中。电子商务资讯系统的发展我们开发了电子商务资讯系统，让使用者可透过互联网查阅上文第1项所述的资料库。地形图、航空照片和站点描述通过地理参考相互链接。自试运行以来，我们一直在改进这一制度，但仍有许多地方需要改进。为了将这项学术活动回馈给泰国社会，并进一步扩大我们的合作，我们于2003年2月在泰国曼谷为泰国公民举办了一次公开研讨会，并公布了网页的网址http://pladaek.media.osaka-cu.ac.jp/econetvis/。这在学术界和公众圈都引起了很大的轰动，因为该网页实现了社会和人类研究领域学术信息共享的新趋势，并向公民提供几乎免费的访问

1. Database on continuity and discontinuity of settlement (1) Digital image archive of analog spatial material: About 550 serial photos and about 250 topographic maps mainly from Srisakra Vallibhotama's collection were archived as digitized image files. It took much work to identify the exact location of aerial photos(2) Site descriptions: Descriptions of about 1,000 sites that Srisakra surveyed were input into the database with geo-references. Srisakra himself and Walailak Songsiri engaged intensively in this work while in Japan2. Temple estabishment records These were integrated into the NETVIS with geo-references of the location of temples3. Field surveys and collecting basic information We conducted several field surveys of Khmer ruins in southern Northeast Thailand and earthen bund irrigation works in Northeast Thailand. We also collected several basic data sets on present rural communities. It is our future task to integrate them into the EcoNETVIS4. Development of the EcoNETVIS We have developed the EcoNETVIS, which allws users to access the database mentioned in 1 above through the Internet. Topographic maps, aerial photos, and site descriptions are linked to each other by geo-references. We have been improving the system since starting a trial run, and still these are many points to be improved5. Opening the EcoNETVIS to the public To return the academic activity to Thai society and to promote further expansion of our collaborative activity, we held an open seminar for Thai citizens in Bangkok, Thailand in February 2003, and announced the URL address of the web page, http://pladaek.media.osaka-cu.ac.jp/econetvis/. This caused a big sensation both in academic and public circles as the web page realized the new trend of sharing academic information in the fields of social and human studies and gibing almost free access to citizens