Home | Problem Reporting | Contact Us | College of Forestry Home | Sitemap
Computing
Services
Knowledge Base
Technical Articles
Frequently
Asked 
Questions (FAQ)
Computing Tips
Software Support
Facilities
Training
Policies
About Us
> Helpdesk > Knowledge Base > Frequently Asked Questions (FAQ)
GIS/ArcInfo: How do I import USGS Land Use GIRAS format data files to ARC?
The information in this article applies to:
Application(s) | Operating System(s) |
In UNIX:
- ftp to "edcftp.cr.usgs.gov"
- cd to "/pub/data/LULC/250K" or ".../100K"
- cd to directory of desired map
- set ftp to "bin"
- use "mget" to get .gz files
- put them in separate directories
- use "gunzip" to uncompress files
- add block endings with "dd if=land_use of=g_coverage ibs=8000 cbs=80 conv=unblock"
in ARC:
- girasarc g_coverage arc_coverage
- build or clean
SAMPLE OUTPUT:
** Converting g_mckenzie into mckenzie **
Number of Arcs in Map......... 986
Number of Points in Map....... 18814
Number of Polygons in Map..... 408
Number of Text Records........ 0
Point Tolerance = 1, Arc Length Tolerance = 3
Map Type = 1 Land Use and Land Cover
Map Projection Code = 1, Map Scale Denominator = 393700
Source Map Date - 1974, File Created - 85150
Map Title: MCKENZIE RIVER, OR 1:100,000 QUAD LAND USE MAP