Thursday, October 18, 2018


Introduction

Why are proper cartographic skills essential in working with UAS data?
Proper cartographic skills are essential in working with UAS data. Without proper skills, data is easily skewed. Using proper mapping and labeling the viewer can easily see what the map is trying to portray.
* What are the fundamentals of turning either a drawing or an aerial image into a map?
The main difference from a picture and a map is labels and scales. Without a scale, a map cannot be read correctly. A map also needs a compass rose and a legend for any symbols that have been included in the map. A map is considered a tool and the tool isn't useful without legends or scales. Maps should be easily interpreted by all viewers.
* What can spatial patterns of data tell the reader about UAS data? Provide several examples.

* What are the objectives of the lab?
This labs purpose was to get the familiar with cartographic mapping data. We went in depth into the Arc Mapping program. This program has multiple configurations and adjustable options for how you would like to show and view your map. The main objectives were how to make a good map and how to properly interpret it.

Methods

What key characteristics should go into folder and file naming conventions?
Make sure when naming files and folders to be precise and accurate. These folders will be used later for development of the project and without proper labeling it will be impossible to keep track of and find the data you need.
o Why is file management so key in working with UAS data?
The data that we collect is very precise and needs to be sorted accordingly. Data we collect is used in different parts of making these maps and should be clearly labeled so that the data doesn't get mixed up or lost while filing.
o What key forms of metadata should be associated with every UAS mission?
Metadata is important for geospatial technology to work properly. This includes things like sensors, altitudes flown, datum for the project, and ground control points if used.
What basemap did you use? Why?
I used a map of the United States to show what part of the country this data was in. I zoomed in on the area in Wisconsin that this map was portraying so that a viewer of the map could tell the overall area of where the map was.
What is the difference between a DSM and DEM? 
DSM is a digital surface model. This is a model that can capture the natural and built features of the Earth's surface. It is useful in 3D modeling. DEM stands for Digital elevation model. This is a vertical datum. Things such as buildings or power lines or man made objects usually arent included in DEM.
What does hillshading do towards being able to visualize relief and topography.
Hillshading is Technique that highlights and helps terrain altitudes stand out in topography.
How does the orthomosaic relate to what you see in the shaded relief of the DSM
The orthomosaic is a a clear view of the image while the DSM is a customizable form that you can use to exaggerate what you'd like the view to see.
What is the purpose of vertical exaggeration? What settings do you have for your data?
o What color ramp did you use? Why?
I used a green yellow red ramp. I did this because I figured those colors popped and they would be easy for anyone to read and interpret. Green was the lower elevation moving to red on the higher altitude.
o What are the advantages of using ArcScene to view UAS DSM data vs. the overhead shaded relief in ArcMap. What are the disadvantages?
In ArcScene you can view the data differently and control it how you'd like to. You can emphasize the altitude and height of the map easier. You can change how dramatic the altitude is. In ArcMap you can't adjust specific properties.
Is this export a map? Why or why not?
Yes because it is properly labeled with a legend, scale, and compass. It is not just a picture.

Conclusion

Summarize what makes UAS data useful as a tool to the cartographer and GIS user.
UAS data is useful for accurate in depth results. Without this data, cartographers couldn't use as much detail for their maps. They wouldn't be able to make comparisons or show important information to the view.
* What limitations does the data have? What should the user know about the data when working with it.
The limitation on the data depends on the controller of the flight. If they don't collect the right data or use the right sensors for the mission, or if they don't fly properly to get good results, the data will not be useful.
* Speculate what other forms of data this data could be combined with to make it even more useful
Other forms of data include older maps that could be updates, maps that haven't been made yet because it was too difficult or dangerous to do an on foot mapping mission, and other cartography maps that could be adjusted or improved with this data.

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