Satellite Comparison: How a Territory Has Changed, Year After Year

Satellite images tell a story that the naked eye cannot see: how the landscape changes over time. The Satellite Comparison by iLoveNatura was created precisely for this purpose, to juxtapose shots of the same place in different years and understand what has happened to a forest, a river, a cultivated field, or an urban area.

The tool works in two ways. In the temporal comparison, you choose a single indicator, such as the health of the vegetation, and track it over two to six different years. In the spectral comparison, on the other hand, you fix a year and juxtapose different indicators to view the same place from multiple perspectives at the same time.

You don't need to be an expert in remote sensing: select an area on the map, choose what you want to see, and the tool prepares the comparison. The available images start from 2017 and go up to the current year, allowing you to build a true timeline of the landscape.

The tool is free to try: as soon as you register, you receive 10 credits, and each combination of a layer for one year costs 0.4 credits. A temporal comparison of an indicator over four years therefore costs about 1.6 credits. Without registration, you can analyse areas up to 100 hectares; with a free account, the surface limit disappears.

Each completed comparison generates a shareable link: the recipient can explore all views, from Grid to Swipe, from Timeline to Opacity, without consuming credits. Convenient for showing a colleague, a class, or a client how a place has changed.

There are many uses: monitoring the recovery of a forest, documenting land consumption, tracking the drought of a basin, illustrating urban expansion, or preparing materials for environmental projects. If you work in nature, territory, or dissemination, it is a concrete way to add value to satellite data and truly see the passage of time.