The theme lecture is available at the following web-page:
Presentation of the week, including the introduction to individual project work:
The following material is used in the hands-on exercise with the lecture. Please download the files to your computer (right-click - save as...) - please use Mozilla or Safari browser.
data: lecture2.ziplecture 2 demo script: demo2.mlx
Content of support_05dgr.mat (part of lecture2.zip)
- area_05dgr: area of each grid cell (in km2)
- land_05dgr: percentage of land area of each grid cell (%)
- d2sea_05dgr: distance to coastal line (km)
- dist2water_05dgr: distance to fresh water features (km)
- dem_05dgr: elevation above sea level (m)
- temperature_mean_05dgr: mean annual temperature (°C)
- prec_annual_05dgr: mean annual precipitation (mm/yr)
- runoff_annual_05dgr: mean annual runoff (mm/yr)
- R_05: georeference file; needed if you use 'geoshow' command to map your data or if you want to cut your data to basin, country or continent (see below the 'Matlab files for cutting your data')
The hands-on handout: Hands-on_2_quick_reference.pdf
Discover global / regional / river basin population dynamics
- please select a research question below or develop your own (preferred!)
- 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
- you can get help to possible problems by a) searching from internet: there are many people with similar problems; b) posting question to the discussion forum of the course (tool below the text; teachers and other students will be answering to those questions); c) coming to Thursday workshop, or d) asking your fellow students directly
- once you are happy with the end result, please submit the work (see below Submission)
This weeks illustration type: bar and scatter plots; include at least one each 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.
Matlab files for cutting your data
It is easier and faster to make analysis within your project area, if the data includes only that area. We put together a function that does it for you. It is also much easier to illustrate the maps when you have a raster dataset including only your project area. You can use this in the home assignments and in project work.
zonal files (river basins, countries, and continents) : cut_the_data.zip
The m-file should include all the instructions you'll need for cutting the data for your project work, but should you have any questions please don't hesitate to contact Matti or Matias.
NOTE: the *.m files that includes the function to cut the data (i.e. cut_basin_raster.m, cut_continent_raster.m, cut_country_raster.m) need either to be on the current working folder or you need to set the path to the folder where those are located!
You can set the path with following command (you do need to re-set the path each time you restart matlab):
ps. if you work on your own computer (i.e. not university's computer), then you have rights to add the path permanently to these functions. Then you can do as follows:
1. from HOME tab of matlab tab-bar select Set Path
2. click Add Folder...
3. find and select the unzipped folder with the three m-files
4. click open (or ok)
5. click save
6. now those functions should work whenever you use matlab and all the working directories
On Thursdays we have a workshop at main building A046 in where you can get help on the home assignment and project work. At 9:15, 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 related presentation can be downloaded here: