- These are Dutch colonial maps of Indonesia from about 1910-1930
- At the time there were limited roads and often villages were in the middle of the jungle and have since been abandoned.
- Under Indonesian law, the primary administrative concept is the 'administrative village' which does not necessarily correspond at all to any physical village, and can be several hundred square kilometres comprising and splitting up multiple geographical places. For navigational purposes the administrative villages are not very useful for this reason. Often they have further administrative subdivisions, but these are again more regions than specific places.
- For historical analysis, land ownership, and place naming, it is useful to overlay historical maps onto both satellite imagery and onto modern street maps using a tool such as Google Maps, OpenStreetMap or whatever.
The question is, given that I have 54 such maps each covering around 20,000 square kilometres in total, which are scans of map sheets currently in TIFF format, is there a good way to make the maps publicly accessible using some web tool such as Google Maps so that it is not necessary to download the images, etc.?
- The scans are each 80 MB tiffs; I guess this could be reduced using a jpeg to 20MB without too much trouble.
- The scans are sheet maps with some white space at their border, also each with their own key and legend. While it would be possible to crop the white space and key off, given that not all maps are of the same date, etc., and they do not match up 100% perfectly with each other, it's probably best to have each map as a separate object overlaid onto an underlying base map, each with adjustable transparency, so that you can compare the historical mapping with the current satellite imagery and when you scroll between maps fade out one map.
Possibly Google Earth is a good tool, but I'm not sure if the maps can be hosted remotely and all 50 made persistent and accessible via a URL?