Wednesday, September 20, 2023

GIS 5050 Module 4: Vector Analysis

In this week's lab assignment, we worked on the manipulation of vector data. The first part dealt with creating geodatabases, storing feature classes within these geodatabases, and then using commands to select certain features according to their attributes. This portion of the assignment was very straightforward and the least time-consuming of the two.

In the second half of the lab, we continued learning about the manipulation of vector data using an array of functions, scripts, and tools that are located within the ArcGIS Toolbox. This part of the assignment gave us the opportunity to explore some of these tools on our own and create a map [shown above] with only a few given requirements. I did not have many problems with this lab; a majority of my time was spent on exploring the tools available and the numerous options associated with each.

The map above is a graphical representation of possible campsites that meet certain criteria at De Soto National Forest in Perry County, MS. The possible campsites were then color-coded by their size in Hectares. The locations of these campsites are based on distances from roads [using a fixed distance buffer of 300 meters], distances from lakes and rivers [using a variable distance buffer of 150 meters from lakes and 500 meters from rivers], and then the remaining areas that fell within the confines of conservation areas were subtracted from the possible campsite areas. As far as aesthetics are concerned, I chose a landscape orientation due to the fact that our main map frame is relatively square shaped, and I chose a dark red for the roads and shades of green for camp sites because these are standard colors used for these types of features, according to cartographic standards. Lastly, I chose to divide my campsites into four equal-interval divisions. These are some of the more important considerations I gave that led to this map's final appearance. Overall, I am completely satisfied with this lab assignment and the map that was produced as I worked through it.

 

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GIS 5935 Module 2.2 - Surface Interpolation

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