The AmericaView Landsat Viewer is a collaborative project involving WisconsinView and the DLT development team that leverages RealEarth and EODN to provide visualization of landsat imagery in near-real time.
The project centers around RealEarth developed at the Space Science Engineering Center (SSEC) at the University of Wisconsin, Madison (WisconsinView). In addition to automating the tedious process of downloading and preprocessing Landsat data, RealEarth allows Landsat data to be combined with more traditional data sets used by atmostpheric scientists to provide better insight into weather patterns and other atmosheric phenomina.
(A) The EODN Harvester, a part of the DLT software suite, continually monitors USGS EROS Landsat 8 archives and automatically retrieves new scenes using the USGS Inventory Service Machine-to-Machine (M2M) API. EODN Harvester then uploads scenes to EODN and store the resulting exNode in UNIS. ExNodes are stored in a UNIS directory structure by Path/Row and date and can be access by users and applications using a variety of search algorythms.
(1) eodn_feed, part of the dlt-tools package, listens for new landsat scenes on EODN and automatically downloads them to AVMSS. A custom script feeds the resulting images to RealEarth where an automated ingest process uses them to create WMS image tiles.