arcgis-10.0arcgis-desktopserious-application-errortiger
I am trying to open Census tract data, downloaded from http://www.census.gov/geo/maps-data/data/tiger-data.html Every time, I open the file in ArcGIS, the software will return an "serious application error…unable to continue" and close by itself after a few minutes. Does anyone have the same problem, or know how to deal with it?
I have tried different computers, different state's file, and redownlaoded files…
Pasting the Cities .prj file in to http://prj2epsg.org/search gives me EPSG:3644 - NAD83(NSRS2007) / Oregon Lambert (ft) which sounds plausible.
EDIT:
I had to explicitly select EPSG:3644 and everything lines up for me.
Very interesting question! I'd note that the geography area calculation is extremely close (in your last example, 3 msq difference over an area of 20000000 msq. (0.000015%)
Since we know that census manages its data inside Oracle Spatial, I'd guess that what you're seeing is a very small difference in the implementation of geodetic area calculation between Oracle and PostGIS. Certainly the very very very similar results would lead me to believe that to be the case.
The way to test would be to take one of your larger polygons and import it into Oracle and compare the geodetic area calculation to the PostGIS one. If you see the same difference, then mystery solved. You can do this if you're motivated (and judging from the work you've put in so far, perhaps you are!) by downloading the free Oracle Express edition and running the calculation in there.
Best Answer
I've had that exact problem trying to open the block group geodatabases and the problem seems to be two-fold:
The width of the data exceeds a dbf's limitations (which I think is 32,767). This is a problem for the block group geodatabasescthat have 1,877 fields.
The geodatabases that were created using ArcGIS 10.1 have compatibility issues running in other versions (including 10.0).
Possible solutions:
When exporting, select specific fields that you want to exclude from being exported so that you don't run into a width problem when the files are being exported from geodatabase to DBF IV format.
Find someway to use ArcGIS 10.1?