Projections Part 2

Hello!

In this lab we learned how to download data from websites and how to define and reproject that data in ArcMap.

More specifically, we downloaded aerial photos, topographic quadrangles and shapefiles from two online data sources for the state of Florida. We also learned how to navigate these sites and get important source information from them.

We learned how to define data that has an unknown geographic coordinate system and how to project it. For the sources with a defined coordinate system, we learned how to reproject them to the desired coordinate system for our project.

We used supplemental data with lat and long values in Excel and learned how to convert it into X & Y values that can be used in ArcMap. We also learned how to assign a coordinate system for these values, and reproject it, as well.

The end goal was to be able to assimilate our own data, define, project, or reproject that data, and ultimately have created a map that implements only one coordinate system.

My Map (raw form)

 

The purpose of this map is to show petroleum tank contamination sites in Escambia County Florida. We were given free reign over which quad of Escambia county we chose. I chose Pensacola, it is quad 5258 and I found it on Labins.org. I chose the major roads data on the FGDL metadata explorer under a Florida Department of Transportation listing. The county boundary and quad index were worked through in the lab and were not free choice. This screenshot shows my end result. All the is data visible on the map and my data frame properties tab shows that all my data is projected on the correct (and same) coordinate system.