Basic Databases

Data
Introduction
Example
Data
Basic Topographic Maps
Introduction
Surveying and mapping of topographic maps is one of major tasks of national data infrastructure which is main concern with the economy, construction and people’s livelihood of the country. So far, the series of basic topographic maps with scale of 1/5,000, 1/25,000 and 1/50,000 had been built for the whole country. Also the base charts of marine area, digital terrain model and general version electronic maps have been built step by step. Furthermore, these data have been shared widely and applied for a variety of objectives.
Example
Data
Digital Elevation Model (DEM)
Introduction
The digital terrain model (DTM) uses data method to display the three dimensional landform topology changes. The digital surface mode (DSM) is the three-dimensional data model of land surface (such as building and plants). In addition to the application of national land planning, it has high application values to people's livelihood, technology, and construction etc. (Resource: Satellite survey Center, Dept.of Land Administration. M.O.I.http://www.gps.moi.gov.tw/SSCenter/Introduce_E/IntroducePage_E.aspx?Page=DTM(_E1)
Example
Data
Aerial photography
Introduction
Collect and photograph aerial remote sensing image data in Taiwan region, establish aerial survey data pool, enrich territorial land information to serve as reference for government policies, various planning research works or for added scholastic value applications. (Resource:Aerial Survey Office, Forestry Bureau.http://communityforestry.forest.gov.tw/ct.asp?xItem=32098&CtNode=2880&mp=6)
Example
Data
Common Version Electronic Maps(CVEM)
Introduction
Common Version Electronic Maps (CVEM) combined basic geographic information of basic topographic maps, 1:1000-scale digital topographic maps, the database of geocoding, land use data, digital road atlas, and aerial photographs to establish the database of Common Version Electronic Maps on a limited budget and duration. (Resource:Common Version Electronic Maps Website.http://emap.nlsc.gov.tw/emapEn/)
Example
Data
Cadastral
Introduction
A cadastral map is a map that shows the boundaries and ownership of land parcels. Some cadastral maps show additional details, such as survey district names, unique identifying numbers for parcels, certificate of title numbers, positions of existing structures, section or lot numbers and their respective areas, adjoining and adjacent street names, selected boundary dimensions and references to prior maps. (Resource: wikipedia.http://en.wikipedia.org/wiki/Cadastral_maps)
Example
Data
Public Utility Data
Introduction
A public utility (usually just utility) is an organization that maintains the infrastructure for a public service (often also providing a service using that infrastructure).The term utilities can also refer to the set of services provided by these organizations consumed by the public: electricity, natural gas, water, and sewage. Telephony may occasionally be included within the definition. (Resource: wikipedia.http://en.wikipedia.org/wiki/Public_utility)
Example