WIUDOW 2 Appendicies

Appendix A |Dow Field Report Writing Guide

For your DOW project report, you are going to document your DOW experience! Most of the report’s length will probably be pictures and images rather than text. Your DOW project report should answer the following questions:

Project Planning

  1. What is your overall topic area?
  2. What specific attributes of the overall topic are you looking at? (Each member of the group should answer this!)
  3. What was the original deployment plan for the DOW?

Site Selection/Study Area Description

  1. What time did you arrive at each deployment site? What time did you leave?
    • If you had more than one stop then you will have more than one answer for this.
  2. Describe your deployment site(s).
    • Latitude/longitude
    • Elevation
    • Google Earth images showing surrounding areas (both close and far views)
    • Ground clutter (include pictures and label dominant ground clutter objects)
  3. What were the good qualities of your deployment site?
  4. What were the bad qualities of (problems with) your deployment site?
  5. What were the atmospheric conditions like during your deployment?
    • Wind direction and did it change during the deployment
    • Wind speed and did it change during the deployment
    • Cloud cover
    • Stability
    • Humidity

DOW in Action

  1. How was the truck leveled? (include a picture of the bubble level)
  2. Which way was the front of the DOW pointing?
  3. Did your deployment go exactly as described in your original deployment plan? (The answer here has been NO for every deployment I’ve been on!)
  4. What part(s) did not go exactly as planned?
    • How did your deployment plan have to change?
    • Did the instrument work correctly all the time? Did the frequency need to be adjusted? Did the truck need to be re-leveled? Was ground clutter a problem? Etc.
  5. What was done to fix the problem(s)?
  6. Exactly what scans were run?
    • Describe any RHI, PPI (survey) and/or PPI (sector) scans that were done.
    • Describe the elevation angles for PPI scans.
    • Describe the azimuth angles for RHI and PPI (sector) scans.
  7. What specific aspects of your overall topic did you look at?
  8. What interesting things did you see while scanning?

Ground Clutter Diagnosis

  1. Using your lowest (or near lowest) elevation scan, label the dominant ground clutter objects. These should be the same ground clutter objects seen in your Site Selection pictures.

Data Description

  1. How many files were generated during your deployments?
  2. What is the total size of data generated during your deployments?

Data Analysis

  1. What interesting things can you see in the data? (include pictures!)
    • RHI
    • PPI
    • Velocity
    • Reflectivity
  2. What were the radar beam issues that you encountered?


Appendix B | LINUX and SOLO3 Instructions

Getting started with LINUX:

  • Log in using your WIU Username and Password
  • If you cannot log in then see your instructor.

Open a terminal window

  • Click on Applications at the top left-hand of the screen
  • Choose Accessories, then choose Terminal
  • This will open a command-line window.

Explore some commands and find your files

  • Type 'ls'    What is displayed?
  • Type 'mkdir DOW'     'mkdir' is the command to create a directory (with the name DOW, in this case)
  • Type 'ls'     What is displayed?
  • Type 'pwd'       'pwd' is the command to tell you where you are in the directory tree
    • This is your HOME directory. Write your home directory address here:_______________________
    • ~ can be used in place of typing the home directory location explicitly
  • Type 'cd ..'      This command takes you up one directory level.
    • 'cd' means change directory
    • 'cd' with  nothing after it will take you to your home directory
  • Type 'ls'     to display the contents of the /home directory
  • There should be a directory called 'WIU-DOW-2013'
  • Type 'cd WIU-DOW-2013'   to enter the directory.
    • NOTE: you could also type 'cd W*' to enter directory because the * acts like a wild card to fill in the rest of the name. This only works because there is no other directory with a W as the first letter!
  • Type 'ls'
  • This directory contains 3 subdirectories: Goshen, Russell, and SweepFiles. Goshen and Russell are data sets for the Goshen, WY and the Russell, KS tornadoes. (Feel free to look at them when/if you have time!) SweepFiles contains the DOW files from your experiments.
  • Go into the SweepFiles directory
  • Type 'man ls'     this is a manual page for the command 'ls'.
    • When you are done hit the 'q' key to exit. Most commands in LINUX have 'man' pages!
  • Type 'man cp'     What does the 'cp' command do?
  • The syntax for 'cp' is 'cp <source>  <destination>' where <source> is the name of the file you are copying and <destination> is the name of the directory where you are putting the copy.

Copy your files to your directory

  • Type 'cp <yourfilename.tar.gz>  ~/DOW'    this commands copies your file to the DOW directory that you created above. Remember, ~ is short for your HOME directory
    • NOTE: This may take a while!

Unzip your files

  • Your files have been “tarred” (the .tar part) and “zipped” (the .gz part). Tarring creates one file with all of your content. Zipping creates a compressed version of the file. You will have to undo both
  • Type 'tar -xvf <yourfilename.tar.gz>' to extract your files. This will take some time!
  • Type 'ls' to see the directory where you files are located.
  • Go to the directory with your files
  • List your files in the screen to verify that they are there.
    • Sometimes the files will be in a subdirectory. If so, then go to the subdirectory.

Run Solo3

  • When you are in the directory with your files, type 'solo3'
    • This starts the SOLO3 program.
  • SOLO will start with 4 data windows. You can change this by going to Config and choosing a different number of windows. For most of our applications, we used velocity and reflectivity, so two windows should be sufficient.
  • Right-clicking on a data window will bring up visualization options. Click on Parameters+Colors.
    • Set the Parameter for one window to DBZHC (reflectivity) and the Parameter for the other window to VEL (velocity).
    • You can also change the color table. 'carbone17' has 17 colors. For most of your applications, more colors would be better. Try 'carbone42' or higher.
    • Each time you change something you have to Replot to apply your changes.
    • There are also other things you can do with the Parameters+Colors window and the Frame1/2 options, but they are beyond the scope of this course. For those of you who are continuing your radar research, you will need these additional tools! I will send out a guide close to the end of the semester... you have plenty to do in the mean time!
  • Most of the interesting things we saw happened pretty close to the radar, so you will need to use the Zoom to get a closer look.
  • You can double-click at any location in the data field to re-center on that point.
  • The right and left arrows on your keyboard will step forward and backward through the data.
    • Sometimes this gets “stuck”. To fix it, open a Parameters+Colors window by right-clicking on some data. This usually works.
  • There are LOTS of cool things you can do to visualize your data, but for this course I want you to answer the questions in the Ground Clutter Analysis, Data Description, and Data Analysis sections of the DOW Field Report Guide.

To save your data images, use Alt-Print Screen to print the active screen. This will create a .png file that you can import into your DOW Field Report.