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Tuesday, November 1, 2016 - 14:22
You can easily manage large collections of imagery and remotely sensed data using ArcGIS.
Sunday, September 25, 2016 - 17:05

This week we’ve got for you something cool. The challenge is to recognize on satellite images 10 famous bridges from all around the world. Remember to share your score with the world and to check out our other quizzes.

All the images are the courtesy of Terraserver.com.

The post #GeoawesomeQuiz – Can you recognize these bridges based on satellite images? appeared first on Geoawesomeness.

Sunday, September 25, 2016 - 16:00

Waze is testing out technology it calls "Waze Beacons" to keep drivers connected to GPS navigation systems in tunnels.

The post Connecting to GPS in Tunnels appeared first on GIS Lounge.

Sunday, September 25, 2016 - 15:42

In this edition of Geospatial Redux, Esri has announced a new map contest, you can learn how to make an animated video in QGIS using time data, Australia's northward moving is forcing a coordinate change, and you can buy a kit to make a drone from Lego bricks.

The post Geospatial Redux: Esri Contest, Mapping Time Data, Build a Drone from Lego Bricks appeared first on GIS Lounge.

Sunday, September 25, 2016 - 12:41
I have a new 2016 Subaru Forrester and just love it. While I won’t be able to take advantage of the new technology offered by TomTom in its inaugural collaboration agreement with Subaru, I am interested in the development of one of America’s favorite vehicles, one that boasts the most safety features. Subaru chose TomTom […]


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Census Data

SF1 Data in File Geodatabase Format:

County-Level Variables, version 9.3
County-Level Variables, version 10.0

Census Tract-Level Variables, version 9.3
Census Tract-Level Variables, version 10.0

Block Group-Level Variables, version 9.3
Block Group-Level Variables, version 10.0

The Data Dictionary can be found in Chapter 6 of http://www.census.gov/prod/cen2010/doc/sf1.pdf.

US Census Geography (Shapefiles):
Feature data is included in the US file geodatabases above, so these are in case you need a quick download of the geography only.

US County Shapefile
US Census Tract Shapefile
US Block Group Shapefile

Site Blog

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Summer Institute on Geospatial Technology

Wednesday, May 21, 2014 - 09:45

This summer, August 4th through the 22nd, the Washington College Geographic Information Systems Lab in Chestertown, Maryland is conducting a Summer Institute of Geospatial Technology aimed at adult professionals looking to hone their skills.

arcpy.da.Editor (Trials_and_Tribulations)

Friday, May 9, 2014 - 10:15

I was recently asked to create a Python Script Tool to facilitate an editing workflow.  The basic idea for the tool is that the user selects a feature from one feature class and the attributes of this feature are used to update the attribute values for a selected feature in a second feature class.  I created a test environment on my machine and got the basic tool working.  Once I tested it a few times, I understood why the client wanted it.  It really was useful and saved some steps in the editing process. 

Missed the Memo?

Monday, May 5, 2014 - 12:45

This is a rather eclectic post, but I thought I'd let you know about a couple of issues that I had lately that cost me a good bit of time.

1.  Once the 64-bit geoprocessing patch is installed, personal geodatabases can no longer be read by arcpy Python scripts.



GIS Memes


Convert KML to SHP while Preserving their Attributes!

Ever received a KML from a colleague or friend, open it up in Google Earth, click some features to see their attributes, and realize that you want to do more with it than just display it on Google Earth?? So then you request it in shapefile format to do further geoprocessing on it in another GIS. Sadly, they respond to you with a question of their own: What is GIS??"... Ouch. 

10.1 - Legend - Current Extent...

So, as Tundra and others that will be joining soon know, I like tools that make things simple for my end users.  In 9.3 through 10.0 we had a tool made by the BLM Oregon State Office called Legend by Extent.  THis tool was a simple check box on a toolbar to limit your legend items to only those showing in the current extent.  It had its quirks, but worked well, and was dynamic.


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by Dr. Radut.