Cabezon Creek WSA, NM
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U.S. DEPARTMENT OF THE INTERIOR
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BLM>More BLM Programs>GCDB>Standards>Data Flow Files>File Notes .def
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DEF File Data Metadata for a Dataset, and application behavior values

Field Name

Datatype

CDCS name

NOTE

State_plane_zone

String

none

A numeric value based on standard numbering convention, followed by a verbose descriptor.

Second line in DEF file. Example " 5 ARIZONA WEST MERCATOR"

Datum_code

1 Digit

none

Reference datum for all coordinate data outside the CON file.

Third line in DEF file. 1= NAD27, 2=NAD83, 3=HP

Projection_unit_code

1 Digit

none

Projection units are Survey Feet if datum is NAD27. No limits on NAD83.

Forth line in DEF file. 1=Meters; 2=Survey ft; 3=International feet.

Default_elevation

Numeric

none

Elevation to apply to a point without measured elevation. Fifth line in DEF file

Activate_LEV_flag

Char

none

Flag to indicate whether point elevation data from LEV file is to be considered in adjustment.

Sixth line in DEF file. Y=yes, use LEV; N=no, do not use.

Activate_SD_flag

Char

none

Flag to indicate whether error estimate data from SID file is to be considered in adjustment.

Seventh line in DEF file. Y=yes, use SID; N=no, do not use.

Def_dist_err_est

2 Digit

none

Values to be used in adjustment when distance error estimate is not known.

Def_angle_err_est

Numeric

none

Value to be used in adjustment when angular error estimate is not known.

Ninth line in DEF file.

Def_bearing_err_est

Numeric

none

Value to be used in adjustment when bearing error estimate is not known.

Tenth line in DEF file

Def_N_control_err_est

Numeric

none

Value to be used in adjustment when Northing control error estimate is not known.

Eleventh line in DEF file.

Def_E_control_err_est

Numeric

none

Value to be used in adjustment when Easting control error estimate is not known.

Twelfth line in DEF file.

Mean_geod_bearing_flag

1 Char

none

Flag indicating whether bearings represent "mean geodetic" values.

Thirteenth line in DEF file. Y=Mean Geodetic Bearing; N=Grid Bearing

Dist_residual_printout_limit

Numeric

none

Value indicating decimal precision used in reporting distance residuals. Ex .000 for 3 places.

Fourteenth line in DEF file.

Angle_residual_printout_limit

Numeric

none

Value indicating decimal precision used in reporting angle residuals. Ex .0 for 1 place.

Fifteenth line in DEF file.

Azimuth_residual_printout_limit

Numeric

none

Value indicating decimal precision used in reporting azimuth/bearing residuals. Ex .0 for 1 place.

Sixteenth line in DEF file.

Error_ellipse_computed_flag

1 Char

none

Flag indicating that error ellipses will be computed as part of the adjustment.

Seventeenth line in DEF file. Y=Compute ellipses; N=Do not compute ellipses.

Readjust_w_robusted_err_est_flag

1 Char

none

Flag indicating that data can be readjusted with "robusted" error estimates.

Eighteenth line in DEF file. Y=Robusting on; N=Robusting off.

Print_adjusted_grid_values_flag

1 Char

none

Flag indicating that grid bearings/dists be reported. Not used in GMM.

Nineteenth line in DEF file. Y=Print grid values; N=Do not print grid values.

Update_COR_flag

1 Char

none

Flag indicating that the COR file be updated after adjustment. Not used in GMM.

Twentieth line in DEF file. Y=Update COR file; N=Do not update COR.

Dataset_name

String

none

Name of dataset being acted on, almost always same as 8char filename.

Twentyfirst line in DEF file. Example T05NR14W.

Meridian_code

2 Digit

PLSS Description > Origin of PLSS

Meridian code. These are numerically assigned based on order listed in "Manual of Instructions for the Survey of the Public Lands, 1973."

Twentysecond line in DEF file. Example 14="Gila and Salt River Base and Meridian, Arizona"

State_code

2 Char

Legal Area Description > State

State code. These are numerically assigned based on alphabetizing US Postal Service 2 char abbreviations for state. Example AZ = "04".

UTM_zone

Integer

none

Numeric value of UTM zone used in UTM coordinates. Values are international standard.

Twentyfourth line in DEF file. Example 12 used between W longitudes 108114

Regional_search_distance

Integer

none

Integer indicating the optimal search distance while merging township corner data.

This value will be implemented with the next version of FORMLSA. Feet units. Default = 300 feet