Statistical Data

dem_type: dem_record_C

This feature contains all the data found within record C. By definition, record C does not contain any geometry; rather, its purpose is to hold statistics about the accuracy of the data within the USGS DEM file.

Attribute Name

Contents

file_datum_stats_avail

The code indicating the availability of the statistics in attributes ‘file_datum_rmse_[x|y|z]’.

0 = unavailable, 1 = available

Range: 0|1

Default: No default

file_datum_rmse_x

RMSE of file’s datum relative to absolute datum (for the x-coordinate).

Range: 0...999999

Default: No default

file_datum_rmse_y

RMSE of file’s datum relative to absolute datum (for the y-coordinate).

Range: 0...999999

Default: No default

file_datum_rmse_z

RMSE of file’s datum relative to absolute datum (for the z-coordinate).

Range: 0...999999

Default: No default

file_datum_sample_size

Sample size on which statistics for attributes ‘file_datum_rmse_[x|y|z]’ are based.

Range: 0...999999

Default: No default

dem_datum_stats_avail

The code indicating the availability of the statistics in attributes ‘dem_datum_rmse_[x|y|z]’.

0 = unavailable, 1 = available

Range: 0|1

Default: No default

dem_datum_rmse_x

RMSE of DEM datum relative to file’s datum (for the x-coordinate).

Range: 0...999999

Default: No default

dem_datum_rmse_y

RMSE of DEM datum relative to file’s datum (for the y-coordinate).

Range: 0...999999

Default: No default

dem_datum_rmse_z

RMSE of DEM datum relative to file’s datum (for the z-coordinate).

Range: 0...999999

Default: No default

dem_datum_sample_size

Sample size on which statistics for attributes ‘dem_datum_rmse_[x|y|z]’ are based.

Range: 0...999999

Default: No default