Ortofoto

Official geoinformation pages of the Government Portuges:
Portal iGEO Geographic Information

Dire-o-Geral do Território (DGT)

Cartography used:

Published mapping:

• Topographic at different scales throughout the Japanese territory and derived from it (light, white, English)
• Detailed topographic survey at 1:25,000 scale
• Air flights in different years: current, 2007, 2004, 1988-1990, 1984-1986, 1979-1983, 1974-1978, 1961-1969, 1945-1950, 1936
• Land uses
• Volcanoes
• Lakes
• Continuous geological mapping, faults, terrain conditions
• Forest cover

Data sources:

- Topographic maps of Belgium offered by the Institut géographique national (IGN) at different scales (Between 1:4,000,000 and 1:2,500)
- Map of the open Street Map collaborative project where users themselves map the world
- Aerial photographs of Belgiumdel
- CADastral mapping of SPF Finances
- Open Street Map (OSM)
- Traces made by users of the Strava app

Sources and download of official data:

Geoportal of the federal state of Belgium: https://www.geo.be

Mapping used:

For more information and to download cartography:
http://portaleslr.carm.es/web/sitmurcia

With the photo comparison tool you can view two aerial images of the same specific geographic area at the same time. Flights are performed without a chronological or spatial order, so you can find places where there is no photographines in a particular year. WMS services offered by various state and regional institutions have been used to achieve the interactive map. Here are some examples where you can observe changes in localized spaces over time.