ESRI and Earth Satellite Corporation (EarthSat) have announced that ESRI is a reseller of EarthSat’s NaturalVue and GeoCover 15-meter (0.5 arcsecond) pixel resolution data sets. The Landsat Enhanced Thematic Mapper (ETM) multispectral-based image data sets, which have a circa year 2000 acquisition date and are equivalent to a scale of approximately 1:50,000, provide excellent logistical and geodetic reference information for a wide variety of GIS and simulation applications.
NaturalVue is the only global natural color image mosaic at any resolution less than 450 meters and has the most complete global coverage, extending across all major ocean islands (with Antarctica being the only significant land area not covered). NaturalVue is an ideal global foundation layer. The complete 0.5 arcsecond NaturalVue product, including all 4.5 terabytes of raster data, has been loaded into a geodatabase that serves both thin (Internet browser) and thick (GIS) clients.
Thick clients include ArcGIS Desktop and ArcGIS 3D Analyst. ArcGIS is ESRI’s scalable family of software used for the creation, management, integration, analysis, display, and dissemination of spatial data.
ArcGIS 3D Analyst is an ArcGIS extension that provides advanced tools for three-dimensional visualization, analysis, and surface generation. Some of the current applications of NaturalVue include GIS backdrop, flight simulation, mission planning, geospatial intelligence, mapping, and planning.
NaturalVue is currently available in 5 x 6 degree GeoTIFF tiles; each tile is approximately 300,000 square kilometers and four gigabytes in size. A tile covers an area equal to approximately 10 Landsat TM scenes. It takes approximately 800 tiles to make up the global data set-approximately 4.5 terabytes. Prices begin at $150 per tile for a single seat license. Multiseat and agencywide licenses are also available. In the near future, NaturalVue 2000 will be served from a Web environment for both browser and GIS access.