DTED (Digital Terrain Elevation Data) Writer Parameters
Production
Sets the producer agency code for the generated cells. The first two characters should be the DIA country code followed by additional code information provided by the national defense mapping agency.
The date the data was compiled. This date should be the most descriptive date in YYMM format.
This parameter may be used to set the absolute vertical accuracy (User Header Label [UHL] record, characters 29 to 33) with 90% assurance that the linear errors will not exceed this value relative to mean sea level. Valid values are integral numbers in the range 0000-9999 with leading zeros. By default, the value NA is used, indicating the vertical accuracy information is not available.
Yes creates subfolder structure with tiles stored in subfolders by longitude, with files named by latitude.
No (default setting) creates files with no subfolder naming structure.
For example, if the output is specified by data written to the 1 degree square at 80 degrees west, and 43 degrees north, and DATASET is C:\Output\Data:
- No: the output will be a file written to C:\Output\Data\w080n043.dt1.
- Yes: the output will be written to C:\Output\Data\w80\n43.dt1.
Security
This setting defines the security classification code field in the Data Set Identification (DSI) record (character 4).
The default value is Unclassified.
Resolution
The product level to use. Near the Equator, products have the following resolutions for a one-degree square cell:
Level 0: 121x121 (30 arc second postings)
Level 1: 1201x1201 (3 arc second postings)
Level 2: 3601x3601 (1 arc second postings)
Auto (default): If the source format is DTED, “Auto” will use the resolution level of the source data. If the source format is not DTED, “Auto” sets the default resolution to “1” .
Note: The resolution in latitude is reduced for cells near the North and South Poles.