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Problem: Reprojected geographic data greater than +180 or less than -180 degrees does not display in ArcMap

Description

A dataset that has longitude values less than -180 or greater than +180 does not display after being reprojected.

Cause

Geographic data is categorized by its longitude range into one of three types:

· -360 to 0
· -180 to +180
· 0 to +360

If the data falls between +/-180 and +/-190, the data is categorized incorrecty as +/-180.

Solution or Workaround

Do one of the following:

  • Add data that has a longitude value greater than 190 degrees.
  • Install the newer version of ArcMap 8.1.2.