TerraColor® Imagery - Ocean Shaded Relief

Using our proprietary 15-meter resolution ocean mask, we have developed two versions of TerraColor: one with a blue ocean fill color and another with a bathymetric color shaded relief image. Pricing is the same for both versions. The following details can help you choose which version might be most suitable for your applications:

  • Bathymetric shaded relief version - This version fills the ocean areas with a color shaded relief image Earthstar Geographics generated from gridded sea floor topography data. The color palette used was held to a relatively small range of colors to stay within a generic ocean color range and provide a smooth transition to water colors close to land areas. This version of TerraColor adds interest to global and regional views, and provides information on the geology of plates, continents and islands. Since data for ocean areas with no land must be provided with this version, the overall volume of imagery (file sizes) is larger than the generic ocean color version, especially for the complete globe. The shaded relief image used to fill TerraColor ocean areas was created from version 12.1 of the Measured and Estimated Seafloor Topography dataset developed by Scripps Institute of Oceanography (with their permission). The spatial resolution of the bathymetric data is one kilometer (1000m), so it is not nearly as detailed as the TerraColor 15-meter satellite imagery. (The 1Km bathymetry image has been smoothly resampled to 15-meters during processing, so pixels are the same size as TerraColor's.)
  • Blue ocean fill version - This version uses a generic blue ocean fill that may be preferable for some applications. These include smaller scale mapping where the ocean relief shading may be distracting, flight simulations where a smooth blue ocean is more realistic, and when file size issues are important. Unlike the ocean shaded version, this version is generally shipped with only tiles containing some land data, so total data volume (file sizes) are smaller. (You can fill any empty areas with a blue background color for faster rendering in your application, or we can provide a set of ocean filler tiles to fill out the complete globe at no extra charge upon request.)

Japan with bathymetric shaded relief (left) and generic ocean color (right)
Japan with bathymetric shaded relief (left) and generic ocean color (right)

Indonesia with bathymetric shaded relief (left) and generic ocean color (right)
Indonesia with bathymetric shaded relief (left) and generic ocean color (right)

 

Home | About TerraColor | Image of the Week | Sample Imagery | Product Specifications | Pricing/Ordering | Contact Us | Privacy Policy