You’ve done 10 MoRPh surveys along a subreach, but there’s no marker appearing on the MoRPh10 map! If this sounds familiar, this guide is for you.
Cartographer generates MoRPh10 map markers by “grouping” sets of nearby MoRPh surveys according to the following rules:
- The surveys must all have the same River Name, Reach Name, and Subreach Name fields.
- The surveys must have Module Numbers from 1 to 10 (no duplicates).
- The Survey Dates of the surveys must be within 14 days of one another.
If your MoRPh10 isn’t appearing, it’s possible that one of these three rules is being broken. Here’s a guide to checking and fixing them.
Let’s look at an example. The left map below shows individual modules for three MoRPh10s but the right only shows two markers. Something is wrong here, so let’s check the three rules:
The most common cause of missing MoRPH10s is misspellings in the river, reach, and subreach names. You can check this by selecting Subreach name in the map inspector menu on the left:
This map layer applies colour codes markers according to their fully qualified river, reach, and subreach names. Any inconsistencies in colouring within a group of 10 MoRPhs should become obvious.
In this case, it looks like the surveyor has misspelled “Tokyngton Park” as “Tokington Park”:
We can edit the name easily by clicking the “<” button to come out of the subreach colour coding, and clicking “View survey” at the top of the inspector menu (in this example I right clicked to open the survey in a new browser tab):
You can use a similar technique to check module numbers. Scroll to the bottom of the inspector menu on the MoRPh map and select Module Number:
This map layer applies a rainbow colour coding to the numbers 1 to 10. Differences in colour are trickier to spot than with the location names, but there are other signs of errors:
- If there are more modules of one number than another, the bars in the distribution chart should be different heights.
- If you click on each individual survey, you’ll see the exact module number at the top of the inspector.
Here, we have two module 7s and no module 8s. We can use the same technique of clicking “<” and “View survey” to correct this on the relevant MoRPH form:
Checking dates trickier as there isn’t a map layer for them. Rather than selecting a menu item to colour the map markers, click on each marker in turn and observe the label at the top of the inspector that reads “Showing data recorded at TIME on DATE”:
In the example you can see that one of the surveys has the wrong year (2017 instead of 2018).
Checking the MoRPh10 Map
Once you have checked and fixed any mistakes in your location names, module numbers, and survey dates, your subreach should appear on the MoRPh10 map. Note that you may need to refresh the page if you already had the map open from before: