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 334 of 350
A.4 Data Volume Estimate according to the DAP-R
requirements
According to the detailed analysis table (cf. A.6), an estimate of the data volumes required
yearly by the current GMES services has been conducted. Starting from the areas to cover
explicitly mentioned by the Services in [RD-11], the averaged values of satellite data
requested have been calculated.
The Sentinel-2 MSI Level-1C has been taken as baseline for the volume estimations (cf. [RD-
05] for the unit estimates).
Nominal data is foreseen to be delivered systematically on predefined task while the request
of NRT data is more random, even if some possible NRT scenarios could be anticipated.
In any case the requests for NRT data could strongly depend on natural or anthropic crisis
events.
Figure A-1 Natural Disasters Reported in the last 35 years
Taking into account the statistical occurrence of natural and anthropic hazards an average of
450 events yearly during the last 10 years have occurred affecting an area of 100.000
squared km for each disaster.
A possible request of 150 NRT data scene charter activations per year has been assumed as
plausible for a total of 1000 GB of NRT data yearly.
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