Project: Imagery Analysis

I am currently working on a project to analyze changes in a set of digital aerial photographs, in order to assess how much building & parking lot footprints have changed over different time periods. I was directed by Jim to try the demo of Leica ImageAnalysis (found here), and am still figuring out the finer details of how it works.

Event: ArcGIS upgrade

Today, Jim came by and upgraded my computer with ArcGIS 9.2, which is the newest ArcGIS product from ESRI. I haven't had much of an opportunity to look around yet, but there doesn't seem to be a lot, if any, visually different about the application.

Project: More Prairie Village GIS & GPS

-Today, went out to the Prairie Village area to take some more GPS data near 79th and Mission. Decided it was time to leave around 1:30pm, because the Satellite lock for the Trimble XH was beginning to fade, following the usual phenomenon (every afternoon is a poor signal compared to before noon) Jim and I noticed.
-Got back to the office and post processed (using Trimble's Pathfinder Office 3.10) the data collected and imported it into ArcGIS. Picked up on where I had left after yesterdays data loss snapping the sewer lines over to their corrected positions, including some of my data that had been collected & imported previously in the week.

A shot showing some of the Peridian GPS data along with my GPS data
-Also, thanks to some schedule switching, I will no longer be in on Fridays, how sad. The benefits of doing ten hours for the first four days of the week.
-Another note, today was Kyle Purdon's birthday, Happy Birthday

Project: Manipulating the GPS & Sewer data in ArcGIS

Today, I started lining up the existing sewer profiles with the GPS points using the ArcGIS software. The process is relatively simple, set the snap onto the three different GPS datasets and then snap each manhole and sewer line onto the GPS point. This process is visible in the picture below, the light blue/highlighted line shows where the currently selected sewer was on the map, and the thin green line is where the sewer will be after the software redraws the image. Down at the bottom, at manhole 38, you can see a set of sewer lines & manhole that are waiting to be snapped into place onto the green GPS marker. The green GPS markers are the data points collected by Peridian, while the not visible "salmon" and pink colored crosshairs are the two data sets that Kyle Purdon and I have collected over the first two days of this project.