GSC Sentinel-2 PDGS OCD - Emits - ESA

GSC Sentinel-2 PDGS OCD
Issue 1 Revision 2 (draft) - 25.07.2010
GMES-GSEG-EOPG-TN-09-0008
page 113 of 350
line access to Sentinel-2 imagery as True Colour Images (TCI) via a separate On-Line Image
Browser (OLIB) application. This service will foster the distribution of eye-catching digital
images rather than scientific products with the objective of sharing Sentinel-2 imagery with
the general public.
Access to the images will be provided through a dedicated web-portal, offering enhanced
navigation and image visualisation capabilities. Figure 4-16 shows a screenshot of the
MIRAVI client as an example of imagery access provided directly via any Internet browser.
Figure 4-16 Envisat/MIRAVI Client Screenshot
Imagery will be visualised at the maximum instrument resolution down to about 10 meters
ground-pixel size. MSI image acquisitions not relevant to the general public such as the ones
acquired at night or over deep oceans for instrument calibration purposes will not be
published through this interface.
Visualisation capabilities will support selective image display according to the timestamp of
the data and allow for time-based animations. Additional filters will be supported to enhance
database searches based for instance on cloud cover, countries, cities, etc.
4.5.2.2.4 DAG Interface
The DAG component will be responsible for hiding the PDGS distributed nature and
complexity behind a virtual simple access-point managing the actual data-access tasks on
behalf of the front-end MMUS and OLIB applications. The DAG interface will support:
○ The download of the product components from the PDGS archives and their assembly
into consistent User-Products as triggered through the MMUS, based on the userselected
catalogue items (e.g. granules) and download options (e.g. product
components and packaging format);
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