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Problem: TIGERTOOL converts 1995 BBSP files to NAD27 instead of NAD83

Solution or Workaround

Conversion of 1995 BBSP files, using TIGERTOOL, creates coverages with a NAD27 datum when the PROJECT option is used, but the datum should be NAD83.

Cause:

In version 7.0.4, the PROJECT command used by TIGERTOOL defaults to NAD27. All TIGER files previous to 1995 used the NAD27 datum. The BBSP TIGER/Line files called TIGER/Line Files, 1995 are exactly the same as the TIGER/Line '94 files, but they are now in NAD83 and not NAD27 - except for Hawaii and the outlying territories.

Answer:

1. Click on the Related Information link.

2. Do a keyword search for TIGERTOOL.

3. Download the TIGERTOOL Update.

4. Place the new AML in the current workspace or in $ARCHOME/atool/arc. Root permission to replace the old one.

This updated AML will automatically determine the version of TIGER/line files and use the correct datum when doing a PROJECT of the coverage coordinates.

Related Information