Module 3 - GIS5050 - Introduction to Projections

 


    I really enjoy doing this module, especially with using 3 different program/website like Google Earth and ArcGIS Online. It really show versatile ArcGIS can be with it different uses. I really enjoy using Field Maps to create the data for the .kml file for Google Earth. It also shows how unfriendly and uninviting ArcGIS Pro can be if you don't have a license to use it. I would said the projection aspect of this module help me clearly show how warped a map can be if you use the wrong geographic coordinate system. I think it is really important to use a good projection for data visualization consistency. We often forget that map data is flat and is not in a three dimensional shape unless we are looking at a globe. I learned that a projection can maintain the area of a feature but alter it shapes heavily (the warping). Doing the table shows me how each projection causes the area of a feature to change heavily.

Comments

Post a Comment

Popular posts from this blog

GIS5007 - Orientation - About me

                     Hello everyone, my name is Quang Nguyen. I graduated from Florida State University in 2023  with a B.S. in Geology. I currently work full-time at the Florida Department of Environmental Protection in the wastewater compliance assurance program. I was able to use the FDEP tuition assistance program to pursue a certificate in ArcGIS at UWF. I choose this program because of my background in Geology. I believe GIS will have a important role in the future of the world and I want to become a part of it as I transition from my current job to a more GIS-focused role in the future. I hope to gain a lot of skills after finishing the certificate to do more environmental work that uses my Geology degree to do good for the world. My story map below shows my journey since I was a little kid, and how rock climbing allowed me to travel across many states of the USA. I hope one day I can combine my passion for rock cli...
Read more

Final Project - GIS5050 - Bobwhite-Manatee Transmission Line Project

Image
  This final project was an accumulation of all the skills we learned in this class. I had to use a lot of skills from previous modules that was easily forgotten. I found that creating the layout was one of the most challenging tasks consider what I have learned about neat lines and things such as placement of legends, or scale bar divisions. The above map is a map with all the layers I generated for this project! It looks very cluttered but honestly the parcels part of this project was a very hard task to work on. I also decided to use arcgis story map instead of powerpoint for the presentation which added a lot of extra time to learn. I finds that story map UI is not very user friendly to uses when creating textbox compared to powerpoint. I want to go over the 3 main maps I made for this final project in this blog post and my overall process/experience with them. The environmental land map was a good introduction on how to use the clip tool to isolate the conservation lands/NWI l...
Read more

GIS5007 - Module 4 - Data Classification

Image
           This module focus on learning the 4 common data classification methods: Quantile, Equal Interval, Standard Deviation, and Natural Breaks. By using one dataset but 4 different classification method, the dataset can be visualized differently. Below is how I interpreted the 4 classification methods.           Equal Interval divides a range of data values into equal-sized intervals (based on how many classes are given). It is excellent for uniform distributed data where values are spread out evenly. Extreme values are placed in the lowest or highest class. This can hide some values if some are not evenly distributed.            Quantile classifications divide a dataset into classes with the same number of data points, regardless of actual values in those data points. This ensures each class has the same number of data points, which can be beneficial for data that is evenly distributed. ...
Read more