[GRASS-user] Reading in USGS Global Land Cover Characterization dataset

[Darren Slevin]

Hi,
Im trying to import the USGS Global Land Cover Characterization  
dataset (http://edc2.usgs.gov/glcc/globe_int.php). Ive tried to create  
a header as described below but am having no luck. Im not too sure how  
to append the header information to the img file. I was wondering if  
anyone had already done this?
Thanks,
Darren

2013/2/14 Michael Spencer <michael_spencer at live.co.uk>:
> Hi,
>
> Has anyone used the USGS Global Land Cover Characterization data available
> here?
>
> http://edc2.usgs.gov/glcc/globe_int.php
>
> Indication is that the file format is Erdas Imagine .img, but GRASS is
> coming back with a file type unknown error. Help/readme file suggests data
> is byte type, which leaves me none the wiser!
>
> Happy for any pointers.
>
> Ta,
> Michael

Hi Michael,

Some time ago I had the same problem when using R for reading the
files. From the USGS I was told that the problem is the lack of header
(as mentioned in the metadata that I did not read :( )

You need to make a projection header file as per the FAQ at:
http://landcover.usgs.gov/faq.php#three

The details of the LAEA projection to generate the header file can be  
found on:
http://edc2.usgs.gov/glcc/sadoc2_0.php

IHTH,

Mauricio

--
Darren Slevin
Postgraduate Research Student
The University of Edinburgh
Grant Institute
The King's Buildings
West Mains Road
Edinburgh
EH9 3JW


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