Conducting
an archeo-geophysical survey project can require multiple field teams
of personnel.
The
surveying team sets up spatial controls allowing geophysical
grids to be precisely located within a
cartesian mapping space, usually through use of an EDM. This task
requires baselines to be set as well as individual grid corners.
It is preferable to have this task performed before the geophysical
team is in the field.
The
grid setup team places the individual survey
guide ropes or tapes on the ground in advance of the geophysical
instruments. This usually requires staking the ropes every 1-2
m apart along each edge of a grid.
The
instrument handlers each work a geophysical instrument
in pre-established survey grids. Some instruments, like GPR, may
require more than one individual for efficient machine handling.
Obviously, planning
comes into play as grid corners must be established before a grid
can be set up, and guide ropes must be in place before instrument
passage. In a multi-instrument survey care should be taken to keep
them spatially separated in order that their metallic components,
internal or externally generated electromagnetic fields do not impinge
on each other.
Contribution
by: Kenneth
L. Kvamme, Archeo-Imaging Lab, University of Arkansas
The
surveying team sets up spatial controls allowing 