Applications
B3-2 ENVI-MAG Manual
Figure B-18 Typical survey grid for environmental applications.
A typical sequence to lay out a grid is as follows:
1. First you must lay in the base line; this is done using a chain (50 or 100
metre measuring tape). Major intervals such as 5 or 10 metre lines can be
marked with pickets or flags for a more prominent visual reference.
2. Then mark each survey line with wooden stakes driven into the ground. The
heads of the stakes should preferably be marked with fluorescent paint. The
base line implementation is illustrated in the following figure (Figure B-19).