Blog / Andrew Newman / June 25, 2020
The European Space Agency’s Sentinel 1(radar) and Sentinel 2 (optical) missions make vast quantities of satellite data freely available as open data. At Defra, we recognise these data sources are key to the delivery of better services and ultimately better environmental outcomes.
But satellite data is big, complex and hard to use, users need to:
All of this takes considerable amounts of time, specialist skills and significant computer processing power. These issues have often blocked our specialists from using the data and where people did use the data different processing methods led to inconsistency.
The Earth Observation Data Service
The Earth Observation Data Service has been built to make all this simpler and faster. The service has 4 core components:
New satellite data is available to users, in ready to use form, within 24 hours of it being captured by the Sentinel satellites.
The service has been built by SCYSIS (now part of CGI) on Defra’s internally managed Azure cloud environment, it is a complex stack of open source tech including: ARCSI and SNAP for data processing, GeoServer for data storage and sharing and GeoNode for the portal.
Our ready to use data is open data
Defra group is committed to publishing as much of our data as possible as open data. We have partnered with the Science and Technology Facilities Council and our archive of data can be found in the CEDA archive. The data can be reused, by anyone, for free, under the terms of the Open Government Licence.
The Earth Observation Data Service has been developed for use by Defra and its agencies. It puts Defra at the forefront of government innovation in earth observation data. Other public sector organisations have shown an interest in the service and we are working with the GeoSpatial Commission to explore how this might be achieved. If you are a public sector organisation and are interested in joining this work, please email us at firstname.lastname@example.org.
Expected benefits – what Defra will get from the service
The Earth Observation Data Service will help staff across Defra Group with their work, delivering environmental observations, powering models and enabling new analyses. The service will enable us to deliver existing services more effectively and will provide new insights. We know the data will be used to:
As we adapt our ways of working because of coronavirus we expect the demands for earth observation data to continue to grow. For example, we are looking at how we can target field visits more effectively by making more use of earth observation data.
This new service will enable us to do all these things more quickly or frequently and with less specialist input.
Thanks to Paula Lightfoot at the Joint Nature Conservation Committee (JNCC) for her assistance with this post. You can read more about earth observation in the Spring issue of ‘Nature News’, the JNCC newsletter.
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