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Author Topic: Looking for US land cover data  (Read 6245 times)

Perry

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Looking for US land cover data
« on: June 11, 2008, 07:46:42 PM »
I’m looking for United States land cover data (wooded, etc.) in vector format.

National Map Seamless Server
http://seamless.usgs.gov/website/seamless/viewer.htm

National Map Seamless Server has National Atlas land cover data listed but when I’ve tried to download it the only format available appears to be GeoTiff.

I either get “Extracting data…Please wait for the data to be returned”…forever; or I get an error message after clicking the download button.

National Atlas
http://www.nationalatlas.gov/atlasftp.html

National Atlas has the land cover data available by state as a Geotiff with the value of each pixel representing a land cover type.  I’ve been able to download from there, but have not found a way to turn the Geotiff into a vector format file that can be used for Garmin map making.

So I’m looking for either a source of the data already in vector format or a way to convert the Geotiff.

Perry

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Re: Looking for US land cover data
« Reply #1 on: June 15, 2008, 05:03:23 AM »
For the seamless server if you get that error clear your cache and then try again.  If it still doesn't work wait a few hours (sometimes it definitely just doesn't work during certain times).

Also, I was having some issues with Firefox 3 and it so I ended up using IE7.

I'm gonna download some land cover and see what I can do to convert it :)
Dan Blomberg
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-Oz-

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Re: Looking for US land cover data
« Reply #2 on: June 15, 2008, 09:25:27 AM »
Well, you're right.  I have no idea how to convert the tif file into a vector file.  Global Mapper can't do it.
Dan Blomberg
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GPS Units: Garmin Dakota 20, Garmin GPSMap 60csx, Nuvi 255W, Nuvi 250W, ForeRunner 110, Fenix 2, Tactix Bravo, Foretrex 401
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John_M

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Re: Looking for US land cover data
« Reply #3 on: June 30, 2008, 02:48:03 PM »
For United States land cover data in vector format look at http://water.usgs.gov/GIS/dsdl/ds240/index.html.


 

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