The WEkEO DIAS is the single access point for around 300 products on Earth observation data, available from the WEkEO Data Viewer, on the DATA tab (What data is available in WEkEO?).

In this article we introduce the main functionalities of the WEkEO Data Viewer and the different ways to download the products.

In the Catalogue, all listed products can be added to our list of layers (on the left).

The first step is to click on the "+" button from the Layers tab (1) and scroll the Catalogue of products. Found the needed one. If the dataset selected has a "Use dataset" button (2), this means that it cannot be viewed on our Viewer, but can only be downloaded.

However, if the button is "Select layers" (3), then it is viewable on the Viewer as well as being downloadable.

Of course, all products have a summary, available by clicking on the "i" option (or on Details, from the Catalogue view):

In this window, the following informations are available:

General settings are also available to user for personal customization of the viewer, you can:

One of the main functionalities of the WEkEO Viewer is its zooming power on the map, which allows to reach and visualize even the highest spatial resolutions.

The WEkEO Viewer provides the capability to zoom anywhere on the timeline and elevation bar, to select the perfect area and moment:

Finally, the WEkEO viewer also allows to display the coordinates of a point (a), to measures some distances (b), and to define an Area Of Interest (AOI) (c), that you can download afterwards (cf. Data Download section):

A download option is available too, for free, to all our users (sign up here!).

To resume, two data download interfaces are available:

The first way to download data is using the viewer itself. Indeed, the WEkEO Data Viewer allows to create REST based descriptors, where the manually selected parameters are added to the description script.

Click on the download icon (1) and define the different parameters depending on the dataset (2), mainly:

You just have to click on Request data to launch your request (3). A job (or several jobs) is launched (4). In the Jobs tab you can see their status:

Once the jobs are done, you can download them on your computer by clicking on Order (5):

Data will be finally available to the download📥!

A second automated way is using the command lines, by API requests: the Harmonized Data Access (HDA) API enables to uniform access to the whole WEkEO Catalogue, including subsetting and downloading functionalities.

The HDA API request is automatically generated by our services. Click on the download icon (1) and on Show API request (2). Copy the query from the new window (3) and run the script (coming soon):

Several methods are available to download WEkEO data, by using Python scripts or via cURL commands.

These articles might be of interest for you:

We are user-driven and we implement users' suggestions, so feel free to contact us: