GEOGRAPHIC INFORMATION SYSTEMS
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Google Maps is a web mapping service application and technology provided by Google. Google Maps provides high-resolution satellite images for most
urban areas, including Ayutthaya, using the Mercator projection. Although Google uses the word satellite, most of the high-resolution imagery is aerial
photography taken from airplanes. The Google maps here under have been adapted with our data on the former temples/ruins and historical sites of
Ayutthaya.
The Geo-Spatial Digital Archive for Southeast Asia is a project is led by Colonel Dr Surat Lerlum, Program Head, Computer Science Program at the
Chulachomklao Royal Military Academy of Thailand. The objective is to produce a demonstration system of online Geo-Spatial Data Services, which the
user can search and access through various methods: text search, geo-location search, and meta-data search. The digital archive consists of satellite images,
World War II historical aerial photography (for example the Williams-Hunt collection) and historical maps. Here under you will find a link to a map of
Ayutthaya in the 1940s.
The Multi-media Archaeological Database System is another project where Colonel Dr Surat Lerlum is involved. For the case study of Ayutthaya’s
Multi-temporal GIS database, data from various sources and various time periods had been utilized. The oldest information utilized was a map produced by
a French missionary in 1687. The latest information are satellite images, including optical, infrared, synthetic aperture radar. Further work was done in order
to integrate all this data with other cultural information. Presently the locations, mentioned in the Royal Chronicles of Ayutthaya and the reports written by
Europeans who visited Ayutthaya in earlier times, can be identified precisely and extracted from the GIS database in development. This integrated database
system is exceptionally useful for the study of the history of Ayutthaya.

Ayutthaya Historical Research created a number of Interactive Historical Maps of Ayutthaya indicating the positions of old Buddhist monasteries and
other ancient structures from the Ayutthayan era. At present there are 3 interactive maps. The AHR Interactive Historical Map shows the positions of all
known Buddhist monasteries within the district of Ayutthaya. The PBR Interactive Historical Map shows the positions of the Buddhist monasteries, surveyed
by Phraya Boran Rachathanin (PBR) in the early 20th century. The 1850 Interactive Historical Map shows the positions of the Buddhist monasteries,
surveyed in the mid-19th century likely in the reign of King Rama IV.