Within the United States, many regulatory agencies require fine grid modeling using receptor spacing of less than 50 meters. With BREEZE terrain data (acquired from the U.S. Geological Survey), results are accurate. This data is ready for importation into any modeling scenario.

BREEZE provides 7.5 minute DEM tiles for the United States. Each tile covers an area that is 7.5 minutes of latitude by 7.5 minutes of longitude (approximately 10 miles x 10 miles). Coordinates are in Universal Transverse Mercator (UTM) format and the resolution is 30 meters. Not only can this data be used as input for dispersion models, it can also be used in graphics programs to help visualize the landscape.

The 7.5 Minute DEM is a widely supported format produced by the United States Geophysical Survey (USGS).

To order 7.5 minute DEM tiles from BREEZE, send an email to worldgeodata@trinityconsultants.com.

You can purchase 1 Degree DEM tiles for nearly the entire world*. Each tile covers a block of land that is 1 degree of latitude by 1 degree of longitude (approximately 100 km x 100 km in most locations). Coordinates are in arc seconds with a resolution of approximately 90 meters.

All 1 Degree DEM tiles within the United States are offered free of charge! To receive your free 1 Degree DEM data, send an email to worldgeodata@trinityconsultants.com.

1 Degree DEM is a widely supported format produced by the United States Geophysical Survey (USGS).

* Tiles are available between 60°N and 56°S latitude

Each modeling project has unique inputs and requirements. For situations where our standard DEM tiles won't work, BREEZE can create custom tiles which cover a user-specified area and are centered upon any point*.

Coordinates for these tiles are in arc seconds with a resolution of approximately 90 meters.

To purchase a custom DEM tile, send an email to worldgeodata@trinityconsultants.com with the centerpoint of your domain (latitude/longitude coordinates) and how large of an area you need.

* Tiles are available between 60°N and 56°S latitude.

The following are prices associated with BREEZE terrain data products. All prices are in U.S. dollars and do not include local taxes. BREEZE reserves the right to change the offer at any time.

To place an order, send an email toworldgeodata@trinityconsultants.com or call us at 1-972-661-8881.

Terrain Data