Introduction
Now we have our data in a GIS project, we can start preparing our field maps.
Obviously,
field maps need be very clearly readable in the field. Therefore they
require a specific map design that only contains the necessary
elements.
Before
designing the map in the Print Layout of QGIS, we can add some points of
interest where we want to do field observations. Then we need to choose
the proper paper size and orientation. A3 or larger (folded) is
recommended to have enough detail. The orientation (landscape or
portrait) depends on the shape of your study area.
Map elements
A good map needs to be fit for purpose. Therefore a field map has different requirements than a map in a publication for example.
Here's a general video on map design in GIS:
Maps need to have certain elements. Below you'll learn which are needed for field maps:
- Title: only necessary if you can't recognise it from the contents of the map. Maybe sheet numbers are more helpful if you have multiple map sheets for use in the field.
- Legend: for field maps this is often not needed. You can print the legend separately or you can assume that the symbology on the map is clear enough. Only if that is not the case, a legend can be added.
- North arrow: field maps have a coordinate grid. From the orientation of the grid it should be clear where the North is.
- Scale bar: field maps have a coordinate grid. From grid interval and values the scale of the map should already be clear.
- Coordinate grid: very important for field maps, so you can read your position or the position of places where you want to go.
- Projection information: this is essential in combination with the coordinate grid printed on the field map. The projection should not be printed as EPSG code, but the full name of the projection should be used.
This is needed to make sure that you know which projection to use on the
GPS device.
This video shows an example for creating field maps in QGIS: