TerraColor® Imagery - Upgrades to Reduce Cloud Cover and Improve Quality

Throughout the history of TerraColor, we have been progressively upgrading the product to reduce cloud cover and add missing data to fill out a complete global dataset with pole-to-pole coverage. Our primary goal is to increase the overall information content of the product while improving image mapping of more remote, cloud- and ice-plagued areas. To date, we have upgraded over 2 million square miles of imagery by carefully selecting alternate Landsat 7 (and now Landsat 8 OLI) scenes from the Landsat public domain archive provided by the U.S. Geological Survey (thanks to them).

In some areas, such as the equatorial tropics, cloud cover is a persistent problem in all satellite imagery. Even the best single Landsat scene is likely contain a fair percentage of clouds. To help overcome this, we combine data from multiple Landsat scenes of the same area to create a single composite scene with the least possible cloud cover. The composite scenes are then mosaicked and seamlessly integrated into the master TerraColor product. Most of our competitors have either not taken the time or do not have the capability to perform upgrades on a global scale. With the combination of reduced cloud cover and our ocean masking, we have created image maps of some areas that are unrivaled in the industry (such as the entire Great Barrier Reef cloud-free).

Does reducing cloud cover really matter? Judge for yourself - below are a few examples comparing TerraColor to imagery on a popular web mapping application:

Anegada, Caribbean Islands - Popular web mapping application

Anegada, Caribbean Islands - TerraColor

Northern Ecuador - Popular web mapping application

Northern Ecuador - TerraColor

Northern Great Barrier Reef, Australia - Popular web mapping application

Northern Great Barrier Reef, Australia - TerraColor

Tierra del Fuego, South America - Popular web mapping application

Tierra del Fuego, South America - TerraColor

Island of Maui, Hawaiian Islands - Popular web mapping application

Island of Maui, Hawaiian Islands - TerraColor

 

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