Monday, September 19, 2016

Field Activity #2.

Introduction:
  • Provide background to the problem at hand. What are the problems and challenges facing Hadlyville cemetery?
The problem  at hand is that the Hadlyville Cemetery lost their data for their plots, therefore we started a community project to create an interactive map. The problems that become apparent is the erratically placed grave stones which do not follow a row/column parttern very well, hard to read grave stones, and non-marked gravespots.  Some of the challenges are to create the interactive map the class needs to attach photos and attributes to an accurate GPS point with the correct grave site.  
  • Why is building a GIS of this project better than a simple map and/or spreadsheet?
It is a better project to build the GIS because it is something that can be edited easily to introduce new grave locations, add new symbols as needed, and make it easier to see what everything is based on the map.  Also building a GIS for this project is better because it gives the end user more options at the end for what they would like to show the most, for example, empty plots for sale.
  • What equipment are you going to use to gather the data needed to construct the GIS; ie what is the overall approach?
The equipment being used is a survey grade GPS which can pinpoint the grave locations down to a centimeter.  We are also using a UAV to create a high-resolution image.  We will also be using GIS software and possibly an Excel file to record all of the notes we took out in the field to be made into an attribute table to be joined to a feature class.  
  • What are the overall objectives of the method being employed to gather the data.
The overall objectives are to create an accurate interactive mapped using the survey grade GPS, connecting the correct pictures to the correct GPS point, and connecting all of this together with the attributes collected in our notes.  

Methods:
  • What combination of geospatial tools did the class to use in order to conduct the survey? Why?
The tools that we used to conduct the survey included using a survey grade GPS, an UAV, and field notes.  We used these because we need to create our own map with locations based  on the map the UAV created.  
  • What is the accuracy of the equipment you are intending to use? (Be sure to cover each piece of equipment)
UAV - accuracy - centimeter
GPS - Accuracy - centimeter
Field notes - Human Accuracy.
Camera-  Human Level Accuracy

  • How was data recorded? List the different methods and state why a pure digital approach is not always best. What media types are being used for data collection? Formats?
The data was collect in two different ways: the first is by using the GPS and UAV.  The second was was by hand.  We drew maps in our field notes along with taking station numbers with each location/grave site.  The format was going by rows along the road to the back of the cemetery.  We as a class broke it up into different rows for each group.  
  • How will you transfer the data you gather into a GIS
The data will be transferred into a GIS through a few different ways.  First off the field notes will be normalized and transferred into an Excel File.  Once the Excel file is completed it can be turned into an attribute table that will be joined to a feature class within the GIS  Next is matching the GPS points uploaded into the GIS to the attribute field associated with it.  
  • What equipment failures occurred if any? What was done to remedy the situation?
The one big failure that was occurring was the speed at which taking GPS points with the Survey grade GPS was very slow.  This would have taken another whole class period to finish this.  To Remedy the situation we decided that we can create our own points on the high-res image from the UAV.  
  • What might have been done to facilitate data collection in terms of equipment and refining the method?
We could have previously looked at a Google Image of the site and tried to give out rows to each team so we would not have had the 30 minutes of being unsure of what team was doing what.  Also having been taught how to use the survey grade GPS before using in the field may have saved a lot of time as well.  

Conclusion
  • How did the methods transfer to the overall objectives of the project?
The methods used transferred to to overall objectives by solving most of the problems.  Taking notes create the attribute table, taking pictures turn it into an interactive map by being able to see what each grave stone looks like, and having a specific gps point helps to pin down each grave site location.  
  • How did the mixed formats of data collection relate to the accuracy and expediency of the survey?
I feel that the mixed formats of data collection actually brought up the accuracy because it can show some people what they possibly missed or added more information. 
  • Describe the overall success of the survey, and speculate on the outcome of the data.
I believe that the overall success of the survey is going to be very good.  I noticed as a class we got all of the gravestones written down along with pictures taken at each site.  The  only thing missing was about 70% of the grave sites do not have a GPS point, but the high-res image should be detailed enough for us to be able to pinpoint the sites and digitize it ourselves.   I believe this will be a success for the outcome of the data and look forward to the finished product.  






Monday, September 12, 2016

Field Data Collection Challenge: Hadleyvile Cemetery

Introduction

  • Provide background to the problem at hand. What are the problems and challenges facing Hadlyville cemetery?

The Hadleyville Cemetery, which is located in the town of Pleasant Valley, contacted the university to set up a possible research project for a student doing an independent study, but it was turned into a whole class operation to create an interactive map of the Hadleyville Cemetery.  The cemetery is located off of County Road HH (Section 04, Town 25N, Range 9W).  There currently is not a record of the location of the plots, information about each plot, or the condition of each plot.

  • Why is the loss of original maps and records a particular challenge for this project.
With the loss of the original map and records it is going to be more challenging because there are burial plots that have missing, broken, or illegible headstones.  Therefore,  it will make it more difficult to create an interactive map with all of the data.  Hopefully we can figure out which ones may be over looked and create as detailed of a map as possible.  This information is crucial because the Hadleyville Cemetery would like to figure out which plots are available for the public to purchase.

  • How will GIS provide a solution to this problem?
The use of GIS tools will make an interactive map of the Hadleyville Cemetery giving a location of each of the plots, what the information is about each plot, and a picture that will show what that exact plot will look like.  These maps will be available for public use and will be able to show exactly which plots are available. The Cemetery will also be able to upload their own data to keep the map up to date for the public's use.

  • What makes this a GIS project, and not a simple map?
This will not be a simple map because it is going to be interactive.  Each plot will contain information about name, dates, sex, quality of the headstones, and a photo of the plot.

  • What equipment are you going to use to gather the data needed to construct the GIS?
The Equipment use will be a digital camera to take pictures of each plot, and a drone that will be used to create a base map of the entire cemetery.  We are also planning on using a GPS to mark all of the points accurately on the basemap.

  •  What are the overall objectives of your proposal?
The overall objectives for this proposal is to create an interactive map that allows the user to pull up exact information on each plot to give as much information as possible.

Methods

  •  What is the sampling technique you chose to use? Why?
A GPS point will be taken for each headstone.  This will also include a picture taken of it to show the conditions.  The attributes of each plot will be taken via notes which will then be put into an excel spreadsheet. This spreadsheet will be linked with the GPS coordinates to create a very accurate and detailed map.  There will also be a UAV that uses a very high resolution camera to take pictures of the entire cemetery.  I choose to do it this way because I believe it will create the most user friendly and detailed map.  

  •  What is the accuracy of the equipment you are intending to use? (Be sure to cover each piece of equipment)
The GPS I will be using is very high grade therefore it will be within accuracy of a centimeter.  The UAV will be as accurate as the photos it takes are.  The notes used will be as accurate as the GPS due to taking notes on the LAT/LONG for each station. The photos taken with a digital camera will need to be taken in a specific order to determine which photo goes to which plot.

  •  How was the data entered/recorded? Why did you choose this data entry method?
The data is recorded as points using GPS.  There will also be data recorded with a notebook for in the field. I choose this data entry method because it seemed most logical and easiest to maintain throughout the project.

  •  How will you transfer the data you gather into a GIS
I will transfer the data into a GIS by using an Excel spread sheet to combine the data together with the attributes then use a join to match the points to the attributes it goes with.

  •  What drawbacks are there to the method you propose? How to the pros outweigh the cons of this method?

There are a few drawbacks to the methods I came up with.  The first one is human error.  I could easily make a mistake at any of these steps, but to prevent this I will double and triple check to make sure everything is correct and makes sense.  Also having already created a plan helps to reduce the human error percentage.  Another Draw back is how am I going to exactly sort out the pictures I take to be put into the interactive map.  This may end up being more difficult if the plots are not all uniform.  Any error should be easy to fix using a computer, therefore if one arises it will be able to be fixed.

Conclusion


  • How do your methods transfer to the overall objectives of your proposal?
Creating an interactive map that is user friendly and has the ability to display information and clearly in a organized manner, and even to someone with zero GIS training, they should be able to use this interactive map to get the information they are searching for.   With my methods being used everything should come together to create a great map.