21.11.2012 Views

Download a PDF of our 2010 Annual Report - Ancient Egypt ...

Download a PDF of our 2010 Annual Report - Ancient Egypt ...

Download a PDF of our 2010 Annual Report - Ancient Egypt ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

G<br />

eophysical surveys have been a regular part <strong>of</strong> AERA’s<br />

activities for more than ten years. Glen and Joan Dash <strong>of</strong><br />

the Glen Dash Charitable Foundation have deployed a variety<br />

<strong>of</strong> technologies in <strong>our</strong> efforts to “see beneath the surface,”<br />

including magnetometry, electromagnetic induction (EM), and<br />

ground-penetrating radar.<br />

In <strong>2010</strong>, they revisited some <strong>of</strong> the areas they mapped with<br />

ground-penetrating radar during <strong>our</strong> 2001 season. Groundpenetrating<br />

radar has improved quite a bit in the last ten years,<br />

particularly in its processing methods. New s<strong>of</strong>tware allows<br />

them to render the subsurface to much finer detail.<br />

In 2001, their radar survey detected what may be a substantial<br />

building buried about two meters (6.6 feet) beneath<br />

the surface just to the south and east <strong>of</strong> the Great Gate in the<br />

Wall <strong>of</strong> the Crow, in an area we call the “Western Compound.”<br />

Visually, the area was largely featureless. The dominant feature<br />

we see on the surface here today is the northwestern extent <strong>of</strong><br />

the Lost City’s enclosure wall.<br />

Superimposing the 2001 radar map over the site plan, we<br />

see what may be the truncated walls <strong>of</strong> a major building running<br />

under the enclosure wall. The building (if that is what it<br />

is) is itself a significant find. But the fact that it runs under the<br />

enclosure wall, and therefore predates it, may be evidence <strong>of</strong><br />

an earlier phase <strong>of</strong> the city—essentially a first city under the<br />

second one.<br />

Because <strong>of</strong> ongoing excavations and other activities, Glen<br />

and Joan have been unable to expand the radar search for this<br />

early phase much beyond the area mapped in 2001. This<br />

year, however, they did return, mapping substantial<br />

areas <strong>of</strong> the Lost City with radar. They used one<br />

<strong>of</strong> the latest geophysical radars, a Sensors and<br />

S<strong>of</strong>tware proEKKO system. The proEKKO system<br />

mounts on a wheeled<br />

26<br />

Seeing Beneath the Surface:<br />

Hints <strong>of</strong> an Older City<br />

Glen Dash with his<br />

geophysical radar<br />

equipment mounted<br />

on a wheeled cart.<br />

<strong>Ancient</strong> <strong>Egypt</strong> Research Associates 2009–<strong>2010</strong> <strong>Annual</strong> <strong>Report</strong><br />

cart, which allows them to ride over the surface. Earlier radars<br />

had to be dragged along the surface, potentially damaging fragile<br />

archaeological features. Over the next few months they will<br />

be processing this data. New technology will allow them to<br />

render the subsurface in two and three dimensions. Then they<br />

may be able to confirm the existence <strong>of</strong> an earlier “Lost City.”<br />

Great<br />

Gate<br />

Earlier<br />

walls<br />

Top: The geophysical team: Glen and Joan Dash.<br />

Above: Radar data superimposed over the site map showing the<br />

Western Compound in the northwest area <strong>of</strong> the site. The radar data,<br />

which appear to show the outlines <strong>of</strong> a building two meters (6.6 feet)<br />

beneath the surface, may indicate an earlier phase <strong>of</strong> the site.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!