Sunday, March 29, 2009
Monday, March 16, 2009
GIS Soil Data
I recently found an excellent source of information all about the soil in New Orleans. You can download the GIS files here:
http://soildatamart.nrcs.usda.gov/Survey.aspx?County=LA071
All you have to do is request the data and you'll get an email with a link to download it in a few minutes. You'll also have to download a plugin for ArcMap called the Soil Data Viewer, which you can download here:
http://soildataviewer.nrcs.usda.gov/download52.aspx
Once you've downloaded both of these, you can install and follow the directions for the Soil Data Viewer (eventually you'll have a new button in your ArcMap toolbar) and then you can load the files in the "spatial" folder into ArcMap. Now, click on that new button and if it doesn't automatically do so, load the database in the main folder called "soildb_US_2002" (you'll have to unzip it first). Make sure everything is synchronized, choose any of the layers in the database, and click "Map". ArcMap should then bring up that map as a new layer. Rinse and Repeat.
Below, I've included images of all the maps I found particularly useful and descriptions of their content. I'm having a hard time deciphering what exactly these maps are telling us, so if you guys have any insight on interpreting and applying this information, please share!
http://soildatamart.nrcs.usda.gov/Survey.aspx?County=LA071
All you have to do is request the data and you'll get an email with a link to download it in a few minutes. You'll also have to download a plugin for ArcMap called the Soil Data Viewer, which you can download here:
http://soildataviewer.nrcs.usda.gov/download52.aspx
Once you've downloaded both of these, you can install and follow the directions for the Soil Data Viewer (eventually you'll have a new button in your ArcMap toolbar) and then you can load the files in the "spatial" folder into ArcMap. Now, click on that new button and if it doesn't automatically do so, load the database in the main folder called "soildb_US_2002" (you'll have to unzip it first). Make sure everything is synchronized, choose any of the layers in the database, and click "Map". ArcMap should then bring up that map as a new layer. Rinse and Repeat.
Below, I've included images of all the maps I found particularly useful and descriptions of their content. I'm having a hard time deciphering what exactly these maps are telling us, so if you guys have any insight on interpreting and applying this information, please share!
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