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==== SERVICE ====
To address the Near-Real-Time (NRT) requirements of some Government of Canada (GC) departments, CCMEO retrieves data from the Copernicus Collaborative
Hubs and provides a Canadian FTP relay with better download speeds for Canadian end users.
CCMEO achieves this Service by using a lightweight Product Transfer System (PTS) to pull SENTINEL-1 products from the Collaborative hubs via the CANARIE research network from its counterparts (e.g. GEANT) in the EU. It then stages the data on
a Canadian CCMEO GC Download Server with dependable download speeds for its users.
While this limited access has operationalized the use of SENTINEL
-1 data in key GC programs, broad use of SENTINEL-1,2 3, could stand to be improved. ==== USER STORIES ==== <pre> ENVIRONMENT CANADA - CANADIAN ICE SERVICE  The Climate Processes Section within the Climate Research Division currently uses Sentinel-1 EW GRDM for researching Arctic sea ice dynamics and melt processes. As part of the analyses, a variety of sea ice motion datasets are generated (e.g. automated daily Pan-Arctic motion, sub-daily regional AOIs) for collaborators working in Government Operations/Research as well as Academic Research.  Having access to the high-speed connection is critical for the timeliness of the analysis and ice motion products generated in addition to maintaining the capacity to keep pace with the rate of SAR data acquisition. With the previous connection the delay between image download, analysis and product generation was a large bottleneck whereas with DHUS National Mirror access we can automate same-day or 1-day-previous sea ice motion products at Pan-Arctic scale. Pan-Arctic processing was basically impossible using the Copernicus Open-Access hub due to the transfer rate bottleneck and cloud-rehosted S1 data collections at the time were not a solution as access to the L1 GRD products was required. DEFENSE RESEARCH  On behalf of operational partners within DND, DRDC Ottawa uses Sentinel-1 data acquired over the SOIN (Spaceborne Ocean Intelligence Network) area-of-interest off the coast of Halifax, in developing tools for: 1) ocean feature detection and analysis; and 2) ship detection and surveillance. In both cases, the Sentinel-1 images and the Sentinel-1 level-2 radial velocity (RVL) products are used and evaluated in synergy with RADARSAT-2 (and soon RCM) imagery.  DHUS National Mirror services are required for three reasons: 1) due to network architecture, the division has difficulty in accessing both the Copernicus Open hub and the API hub; 2) the division downloads hundreds of S1 image frames per month requiring high-speed internet access; and, 3) the division does not have staff resources to manage and create our own automatic downloading service from the Copernicus data hub. </pre>
== Government and Special Access (NMSO, RADARSAT) ==