We're sorry but this page doesn't work properly without JavaScript enabled. Please enable it to continue.
Feedback

Developing an UI for historical orthophotos timeseries data

Formal Metadata

Title
Developing an UI for historical orthophotos timeseries data
Title of Series
Number of Parts
351
Author
License
CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
Publisher
Release Date
Language
Production Year2022

Content Metadata

Subject Area
Genre
Abstract
In 2020 National Land Survey of Finland had scanned and digitized over 100.000 historical orthophotos from 1931 to 2020. This unique dataset had been open for a couple of years via a WMS-T API service but was not well known to the public at the time, and not truly available to less technically oriented users. Hence, there was a need to get them findable and easily accessible with a web browser. Instead of building a completely new service, the images were to be published with the Open Source based national geoportal of Finland - Paikkatietoikkuna. The geoportal is built with Oskari Map Application Platform which was enhanced for this use case to support timeseries data. The historical orthophotos are scattered both in time and in geography. To improve end-user experience and make discovering data easier an OGC API Features service was used for metadata. The final result was received with quite a bit of enthusiasm: after publishing the data in Paikkatietoikkuna geoportal in June 2021, the visitor numbers soared to new records. Nearly all of the feedback has been positive, and now it is possible for anybody to benefit from this extremely valuable and fascinating historical data. The code is fully open source and can be easily used in any Oskari instance – all you need is the data, which, obviously, isn’t the easiest part of this all.
Keywords