WAT-E2090 - Water and People in a Changing World D, Lecture, 19.4.2022-25.5.2022

Topic outline

• Theme 2: Population dynamics
  Theme lecture

  The theme lecture is available at the following web-page:

  Prezi presentation of the population dynamics

  Presentation of the week, including the introduction to individual final presentation:

  Weekly ppt, including Final presentation introduction

  
  

  Hands-on exercise

  For the hands-on exercise, we will provide you with a new demo script. In the beginning of the hands-on session, we will fetch the demo script together. However, you can pull the demo script (demo2_population_dynamics.rmd) already before the session and browse it through if you like (this is voluntary). If you'd like to watch a recap on how a git pull is performed, see the first workshop recording below.

  First week workshop recording

  We will go through the demo script step by step during the hands-on sessions. Again, the demo script contains few tasks marked with # TODO, which you can try filling in. We will provide model answers to all tasks after the demo session in another script.

  Please note that the correct name of the course directory is wpcourse2022 and the cyan identifier named “master” has been changed to “main” in Git.

  Written instructions on how to update course material are given below.

  1. Open your project from the wpcourse2022.Rproj file
  2. In RStudio, select Tools -> Shell
     
     
     
  3. Verify that the shell is in the wpcourse2022 folder. In Aalto VDI, the current directory of the shell is highlighted in yellow. If there's a cyan (main) tag after the path, the shell is in the correct directory. Changing directories can be done with the command cd path/to/directory.
     
     
     
  4. Commit any previous work according to the instructions in this video (note that the video is from 2021). The working tree should be clean as shown below. The output before the working tree can be "Your branch is XXX commits ahead of 'origin/master'" but that is expected and nothing special needs to be done for it.
     
     
     
  5. Type git pull into the shell and press enter.
  6. The shell pulls the changes from the version control system to your folder wpcourse2022.
  7. If you pull again, you should get "Already up to date." which means that you're good to go.
     

  
  

  Home assignment

  Discover global / regional / river basin population dynamics

  Instructions:

  1. please select a research question below or develop your own (preferred!)
  2. produce one A4/A3 page with following structure: a) title; b) research question and short introduction; c) GRAPHS, maps, etc of the results with captions d) interpretation of the results
  3. you can get help to possible problems by a) searching from internet: there are many people with similar problems; b) posting question to the R Q&A channel in Teams; c) coming to Thursday workshop, or d) asking us or your fellow students directly
  4. once you are happy with the end result, please submit the work (see below Submission)

  
  This weeks illustration type: bar and scatter plots; include either one to the home assignment! See example charts under 'Visualisation guides and examples' -tab 
  

  Example research questions: 

  • what is the distribution of population in different precipitation and/or temperature zones and has this changed over time? Does that differ between urban and rural population?
  • how far from fresh water sources people live today and has that changed over time or will it change in the future? Does that differ between urban and rural population?
  • where do people live in relation to elevation and distance to coast? Does that differ between urban and rural population?

  
  Submission: please submit the assignment by using the submission icon below. 

  
  Thursday workshop
  

  On Thursdays we have a workshop (see Schedule for location) in where you can get help on the home assignment. At around 11:00, we'll give a short lecture on Adobe Illustrator to show how you can use it to enhance your vector graphs and make them visually appealing. The lecture is also given in the video below:

  Illustrator tutorial - part 2 (from year 2021)

  • Select activity Home assignment #2 - population dynamics

    

    Home assignment #2 - population dynamics

    Please submit the first assignment here; instructions are in the MyCourses page. 

    Please remember: submission is due on Monday 2.5. at 23:55 If you submit the assignment late, you'll get only half of the points. The submission will be closed completely a week after DL, after which you are not able to submit the assignment. 

    Before submission, please check:

    • your home assignment fits to one page

    • the format of the submission is pdf

    • assignment includes either scatter plot (point scatter or line graph) or bar chart