Call Organizer

The organizer of the Sentinel Hub Custom Script Contest - Urban Growth in Africa (hereafter: Contest) is Sinergise Ltd., Cvetkova 29, Ljubljana, Slovenia (hereafter: organizer) in behalf of the Euro Data Cube.

Contest Duration

The Contest takes place from 3rd May 2021 until midnight of 25th July 2021 with a possible extension.

Contest Publication

The Contest takes place on the website
The purpose of the Contest is to demonstrate the power of having deep multi-temporal and multi-resolution data cube available over a specific area, and to spread knowledge, new and innovative ideas and scripts, which can be freely shared with all who are interested. The chosen area of interest is Dakar, Senegal. The scripts will be shared through the organizer’s GitHub repository.


All submitted scripts will compete under one common category no matter which data collection (Sentinels, Landsat, etc.) the scripts were used for. The organizer will award the best three custom scripts as follows:

A special prize will be awarded to the best written story making use of the EO data by a professional Journalist.

In addition to above, another special prize will be awarded to the best Pin Story, which can also be a combination of Pin Story and custom editing, i.e. to combine several pin stories (locations) or to bring in other material.

  • Best Pin Story prize: 300 EUR + a box of goodies

All winners will also get an opportunity to highlight their winning scripts in the Sentinel Hub blog.

Contest Terms

Everyone who submits hers/his script accepts these Terms of the Contest.

The employees of organizer and connected companies and individuals that participate in the implementation of the Contest, may not enter the Contest.

All participants in the Contest are aware of and agree to the general terms and conditions of the Contest, made available on the official Contest web page and existing in physical form at the organizer’s main office, Cvetkova 29, Ljubljana, Slovenia.

All participants will formally have co-PI status and are not authorised to use any data that have been made accessible for any other purpose. The licenses for used in these data are described in TPM Terms and conditions, CSDA ESA EULA, EULA amendment).

Participants, who will receive ESA-sponsored Euro Data Cube resources, shall include the following statement in the presentation of the results "Sponsorship received through the Network of Resources initiative of the European Space Agency".

The Contest is open worldwide, with the exception of Iran and North Korea.

Compliance checks will be made for all registered participants.


Participants who wish to submit their custom script or pin story need to register for the Contest by filling out the registration form. Completion of the form is mandatory for all entrants who would like to submit their custom script or pin story.

If you are a journalist and you would need access to commercial data collections for your written story, you also need to register.

Use of Satellite Imagery

Several satellite data providers have contributed their data for this Contest. All participants have to accept the terms of use of these data:

  • Data can only be used for the purpose of contributing a script or pin story for this Contest and for promotion of the Contest and the script or pin story in the media.
  • Every time the derivative of the satellite imagery is used, it should be appropriately credited: "“Contains modified data <SATELLITE SOURCE> processed by Euro Data Cube”.
  • No commercial use is allowed.

Scripts' Guidelines

The participants should develop a custom script demonstrating the following:

  • efficient change detection
  • built-up area on multi-source imagery
  • data fusion on multi-resolution imagery
  • development of the area when submitting a Pin Story (for beginners)

If the submitted script is a really cool one and does not meet the above guidelines, we will still consider the script and evaluate it under the same conditions as the rest.

Scripts' Requirements

All scripts must run within the Sentinel Hub EO Browser (for multi-temporal scripts) and have to be handed in as text files before 25th July 2021 (23:59 CET). By handing in a script, the participant confirms to be the sole author(s) of the script and to have the necessary rights to do so. Every single participant or group can hand in up to three scripts.

All entries must be licensed under the Creative Commons BY license, so they can be added to the organizer's custom scripts repository and be used freely by all.

Together with the script, participants have to hand in a proper description on what their script can be used for and explain how it is achieving that. Besides the general description of the script the following information is required:

  • Scripts applicability
  • False detection problems (if any)
  • Detailed description of how the script works
  • Representative cases / images with details
  • Visualization in EO Browser (a link to a working script)
  • References
  • Credits - In case your script is based on other people's work make sure to include the necessary citations and links to relevant papers.

Submitting Scripts, Pin Stories and Written Stories

In order to submit a script, pin story or written story, the participant needs a Gmail account. If she or he does not have one, a new Gmail account can be created by following the instructions published here. With a Gmail account the participants can submit their script, pin story or written story by filling out the forms available at the following links:

Submit Custom Script

Submit Pin Story

Submit Written Story


The jury will judge and grade the submitted scripts by 31st August 2021. Every script will be judged by:

  • Originality
  • Scientific relevance
  • Global applicability (scripts, which can run on different parts of the world will rank better)
  • Business / Commercial potential
  • Visual appeal

Winner’s Announcement

The winners will be announced on the official Contest web page latest by 7th September 2021.

Informing the Winners and Collecting the Prize

The winners shall be notified with an e-mail within 3 working days after the announcement on the official Contest web page. The winners shall send an e-mail with their personal data (Name and Surname, Address, Bank Account Number, Bank Information, Tax ID Number, Personal ID Number) to the organizer within 8 days of receiving the notice from the organizer.

For delivering the goodie package for the best Pin Story, the winner(s) will need to provide an address and a telephone number within 8 days of receiving the notice from the Organizser.

In case a winner(s) will not submit the requested data in the provided deadline, it shall be assumed that they do not wish to get the prize and their claim to it will thus be void. In such an event, the organizer shall be free of any obligations with regard to such winner(s). It is the decision of the organizer whether such prize(s) shall be awarded to another person(s) or not.

The organizer reserves the right to not award the prize(s) if:

  • The winner(s) fail(s) to meet the requirements to claim the prize
  • Any doubt arises about the validity of any of the data (false profile, etc.)
  • It is determined that the user(s) participated in the Contest is in violation of the terms and conditions of the Contest

By participating in the Contest, the participants agree in advance and give their consent that, in case they become winners, the organizer publishes their name, surname and country as well as the name of the script on the official Contest web page.

Each winner has the right to decline the prize. In case the winner(s) decline(s) the prize, it is understood that they do not wish to get the prize, and as such, the organizer shall be free of any obligations related to the Contest with regard to such winner(s). At the same time, the organizer shall claim the right to use such prize(s) for any purpose the organizer deems fit. The prizes in a non-monetary form cannot be switched nor exchanged for money. The right to claim the prize is not transferable.

The winners awarded with the Sentinel Hub account need to inform the organizer within 6 months from the announcement to which Sentinel Hub account should the award be tied to. The winners can use existing Sentinel Hub account or create a new one here. If the prize includes the commercial data, the winners need to inform the organizer within 6 months from the announcement which commercial data they would like to get and to which Sentinel Hub account should the commercial data be tied to.

Minors as Prize Winners

If a prize winner is a minor, a parent or guardian of any participant who is a minor must sign a release on behalf of the minor to be eligible to receive a prize, but the organizer reserves the right to refuse to award a prize to or on behalf of any minor.

Registering Your Prize with the Appropriate Tax Authority

If the value of the prize is above EUR 42.00, according to the Slovenian Personal Income Tax Act (ZDoh-2), personal income tax is deducted, and the value of the prize is included in the tax base of the recipient of the prize.

In the case that the winner is not a resident of the Republic of Slovenia, the taxation shall be subject to rules from the appropriate international treaties for the avoidance of double taxation. It is the responsibility of such a winner to take care of the taxation duties on their own.

Changing the Rules

The organizer reserves the right to alter the terms and conditions of the Contest at any given moment due to content-related, commercial or technical reasons.


By participating in the Contest, each participant (in case of minors, a parent or guardian) gives to the organizer their individual consent to have their data used and processed by a computer software for the purposes of the Contest. The participants in the prize Contest also agree that the organizer keeps, maintains and supervises all the collected personal data of individuals in accordance with the law. The organizer provides protection of personal data in accordance with the law. The participant of the Contest authorizes the organizer to process the collected data for the purpose of informing about the Contest and for other marketing purposes.

By participating in the Contest, the participants agree in advance and give their consent that the organizer publishes their script on the organizer’s GitHub repository, if the organizer decides to do so.

Dispute Settlement

Any dispute with regard to the Contest shall be submitted to the competent court in Ljubljana, Slovenia.

Validity of the Rules

The Rules enter into effect on 3rd May 2021.

Sinergise Ltd.



Here we will log all the changes done to Terms and Conditions of the Sentinel Hub Custom Script Contest - Urban Growth in Africa - in the future.