PFHS students, it’s time to use the data we collected and try to figure out the water quality status of Upper Twin Lake and Fish Creek! On Google Drive, check out the final data in “Twin Lakes_Fish Creek” to help you do this or check out the charts below. Comment on this post with your responses.
Select one variable, such as DO, pH, water temperature, clarity, or PTI to assess and write the following in a comment on this post, with all the names of who helped write it:
- What variable are you analyzing?
- Explain any variation in the observed data throughout the day (i.e., temporal variability). How does it change (or not), and why do you think that is? **You can easily compare data over time by creating a chart. To do so, highlight the time column and the column with your variable in it. In the “Insert” menus, select “Chart.” Click on the “Charts” tab, then select a scatterplot. Now you have a graph over time of the data so that you can visualize what’s going on!
- Did we record different values at the creek and the lake (i.e., spatial variability)? Please explain any spatial variation, or lack thereof.
Since we collected data at the same time of year in 2013 and 2014, let’s see how that compares:
- Overall (glancing at all the data), does it seem that water quality has improved, stayed the same, or gotten worse in this watershed from 2013 to 2014?
- What limitations exist to determining the change in water quality from 2013 to 2014?