Half way done tonight with our 5 week LiDAR classification/cleanup project for the Arkansas Department of Fish and Wildlife. The screenshot below is a 1 mile by 1 mile tile that includes over 8 million points. Airborne LiDAR uses an aircraft equipped with a laser scanner to image the earth’s surface. It doesn’t take color pictures, but takes a snapshot of the earth’s elevation. So the below tile includes a creek running through a culvert under a road. The creek is the lowest elevation and is represented by a magenta color. The road is the highest elevation and is represented by a green color. I enjoy working with LiDAR and the tools you can produce from the data. It just takes forever to process, classify, and clean up.
Here is a VerticalGeo’s Airfield Experience Map. VerticalGeo collectively has over 65 years experience as subject matter experts on integrating GIS and aerial photography technology into airfield operations and over 40 years experience serving the US Air Force’s Air Mobility Command (AMC). This map displays the airfields where we have boots-on-ground experience.
Please click on the aircraft symbol to drill down into the information for each of the airfields.
You can click on the “View Larger Map” link at the bottom of the map or use the following link to go to the ESRI ArcGIS Online version of this map:
Here is a link to a Sidney Morning Herald article that discusses how the doodles on the whiteboard of an Australian small tech startup called Where 2 eventually changed the world by morphing into Google Maps. The article shows what you can accomplish with a good idea and a good sense of timing. Even more than the lessons of technology Noel Gordon talks about the lessons of agility and flexibility small businesses bring to the marketplace. Here is the link:
In July VerticalGeo hosted the ASPRS Heartland Region‘s monthly Technical Presentation. Brittany Mabry, a graduate student from the University of Arkansas‘ Center for Advanced Spatial Technologies (CAST), presented on “Using Terrestrial LiDAR for Cultural Heritage Documentation.” It was a fascinating presentation that highlighted how Brittany, and the CAST team has used, and taught others to use, Terrestrial LiDAR to digitally capture 3-D imagery of cultural heritage resources around the globe. This is wonderful technology that will allow us to capture and preserve in 3-D those historic places that define our world. Here is Brittany’s presentation:
Last week I attended a web-based presentation by USGS on the National Map Corps. I don’t know if you are familiar with USGS’s National Map or not, but it is a great resource for finding and downloading information. I had not heard of the USGS National Map Corps before, so this was good news to me.
USGS has adopted the same editing environment for the National Map Corps that OpenStreetMap has used for a few years (Potlatch). It works well, is simple to use, and they use it to update a few features for the US Topo Map. The features you can currently edit across the US are: schools, fire, police, and EMS locations, state capitals, and cemeteries. Not a lot of features to update, but it is nice to see USGS opening up to crowd sourcing to keep features current and accurate. The updates you make on the map are reviewed by peers and then added to the new US Topo Map quads.
The URL for the USGS National Map Corps Editor is:
We wanted to add some video tutorials to show new ArcGIS users how to edit data in ArcMap. Step 1 is to create a File Geodatabase. In this video we cover creating a File Geodatabase in ArcMap 10.1 that we will use in our next video to add data to our project. To see all of our ArcGIS tutorials please visit out YouTube Channel.
We have had a lot of people lately ask us how to georeference imagery. So, as long as it is a hot topic, we just posted VerticalGeo’s new video tutorial on “Georeferencing Imagery in ArcGIS 10.1 Desktop” on our YouTube Channel. Here it is:
Google’s Project Tango is a very interesting project that brings an entirely new focus to crowd sourced mapping data.