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Open-File Report 2005-1413

Data Files

The data files included on the DVD version of this publication are databases, grids, and maps that can be interactively displayed, examined, and converted to other formats using a free viewer provided by Geosoft, Inc. Table 1 lists the databases with a brief description. Table 2 lists the grids and Table 3 lists the maps. Some of the file names in the tables have links to additional information that you may find helpful. If you are interested in acquiring the DVD publication, call 1-888-ASK-USGS for information about ordering a copy.

Table 1. Listing of databases.

Database File Name

Contents

Alaska.gdb

Flightline data for surveys in Alaska

EasternUS.gdb

Flightline data for surveys in eastern USA

EastCentUS.gdb

Flightline data for surveys in east central USA

WestCentUS.gdb

Flightline data for surveys in west central USA

WesternUS.gdb

Flightline data for surveys in western USA

USandCanadaBoundaries.gdb

Political boundaries of Provinces in Canada and States in the USA

 

Table 2. Listing of grid files.

Grid File Name

Description

NAMrad_K.grd

Concentrations of potassium in Canada and USA

NAMrad_U.grd

Concentrations of uranium in Canada and USA

NAMrad_Th.grd

Concentrations of thorium in Canada and USA

NAMrad_exp.grd

Gamma-ray absorbed dose rate in Canada and USA

 

Table 3. Listing of maps.

Map File Name

Contents

NAM_K.map

Map showing concentrations of potassium in Canada and USA

NAM_U.map

Map showing concentrations of uranium in Canada and USA

NAM_Th.map

Map showing concentrations of thorium in Canada and USA

NAM_CCM.map

Composite-color map of potassium, uranium, and thorium.

NAM_exp.map

Map showing absorbed dose rate calculated from potassium, uranium, and thorium concentrations.

CosmicDose.map

Map of cosmic absorbed dose rate calculated from topography.

Topo2km.map

Map showing digital elevation model of the topography.

 

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