ISAC Podcasts Flying Under a Screen of Clouds: A Snapshot of Aerial Archaeology in West Asia ISAC special exhibition lecture for Pioneers of the Sky: Aerial Archaeology and the Black Desert Marie-Laure Chambrade, exhibition curator For more information on Pioneers of the Sky, visit: https://isac.uchicago.edu/pioneers-sky
Close to sunset one evening in 1929, Père Antoine Poidebard flew his plane almost parallel to the ground, under low cloud cover, to photograph archaeological sites in Syria, their features accentuated by the sun’s concentrated, raking light. He would later call this procedure “flying under a screen of clouds.” Aerial photography has been responsible for the discovery of more archaeological sites than any other survey method, thanks to vi sionary scholars and enthusiasts, like Poidebard, and their bold experimentation with balloons, kites, airplanes, drones, and satellite imagery.
In this lecture, presented in connection with the ISAC Museum special exhibition Pioneers of the Sky: Aerial Archaeology and the Black Desert, Marie-Laure Chambrade, exhibition curator, will provide an overview of the history of aerial imagery and its application to the archaeology of West Asia, ranging from survey purposes to excavation follow-up and monitoring endangered heritage. She will highlight portraits of pioneers in the field, the close connection between aerial archaeology and military intelligence, and principal advancements of this century-old discipline.
Before we begin, I would like to remind you
What Yorco Rowan will give the next lecture
Regarding the exhibition on June 26.
This reading will be dedicated to the Black Desert of Jordan.
which is a section of the exhibition that I will mention only tonight,
because I would like to summarize the main ideas
what I wanted to share through the exhibition.
To this end, I will refer to the content of the exhibition itself,
Of course, but also on a few additional portraits
pioneers and historic moments.
Let's start with someone you won't see in the exhibition,
The exhibition focuses on the pioneers of aerial archaeology.
But as a Frenchwoman presenting the history of aerial archaeology
In western Asia, it's almost my duty
at least mention Antoine Poidobar,
who was one of the pioneers who established the discipline.
The title of this reading is a translation
one of the techniques he experimented with in 1929,
the flight beneath the screen of clouds
soaring beneath a canopy of clouds,
As shown in this image.
The conditions were those of the beginning of the day, in November.
after heavy rains, with a low cloud cover
and fly beneath the screen, parallel to the ground.
Apparently, these conditions were ideal for seeing
the archaeological mountains of the Syrian desert
but not the easiest to reproduce, as you can imagine.
But it is precisely through this kind of experimentation
which, during the early days of aerial archaeology,
The discipline has become useful and successful.
Aerial archaeology is a little over a century old.
From afar, we discovered more archaeological sites
with aerial photography
with other soil survey methods.
It is incomparable.
But that is not the only purpose of aerial archaeology,
Far from it.
It is also an inevitable asset for archaeology in general.
and for the management of the inheritance,
and an essential tool for the archaeology of the site.
I will return to this later.
To understand the meaning of aerial archaeology,
I'm going to start with a quote from Crawford,
pioneer of aerial archaeology in Europe
and the so-called father of the discipline.
I found it difficult to express in the appropriate words
The importance of aerial photographs
for the archaeological study.
They provide a new research tool
comparable only to that provided by excavation.
They are second only to excavation
in the results they will achieve.
Their inventions will also be valuable for archaeology.
those of the telescope for astronomy.
They are not a substitute for fieldwork.
but they are the most powerful ally
archaeologists in the field
In fact, a prominent field archaeologist
and a former director of the Institute,
William Sumner said that
when he saw an aerial photograph
from the place that Gerster had taken
when the sun was low in the sky,
He saw and understood more in ten minutes
What he had done in ten years
regular work on the ground.
That is how aerial archaeology works
May be a powerful ally for field archaeologists.
Aerial archaeology on the ground
could not have existed without pioneers,
visionaries who saw the potential
from these images and had ideas
to produce them, to access them.
At each major stage of the discipline
In West Asia, you will find pioneers
in Isaac's time, in the 1930s
the beginning of aerial archaeology
then in the 1990s,
with the development of technologies
from the 1990s onwards
and very recently, toward the future
using drones and artificial intelligence.
This is one of the reasons why
The exhibition is aimed at pioneers.
Let us begin with James Henry Breasted,
Who took the first aerial photographs?
for Isaac from the Egyptian Eric Tange in 1920.
Only one year after founding Isaac,
This clearly illustrates that aerial photography
It is based on the story of Isaac,
and I will return to this soon.
But for now, I would like to emphasize
pioneers who may be less well known
A photo of Giza was taken in 1904
by Edouard Spelterini
who was a Swiss pioneer of the balloon
and aerial photography.
In Sudan, a few years later,
Henri Wellcome, a philanthropist
Who excavated Jebel Moya?
decided to use a kite to take photos
of the ongoing excavation.
These are probably the most recent photos.
from an excavation in North Africa.
Jordan's Black Desert is well known thanks to photographs.
published during the 1920s
and which had been taken by a British pilot.
But several years earlier,
The Australian Army flew into the Black Desert.
He took some photos in 1918.
They are less well known,
but the Australian Army
and the German army
took some wonderful photos
during World War I.
Within the scope of the exhibition,
you may have noticed that every two weeks,
we highlight a pioneering woman
in the photos of the Australian Army
on Isaac's social networks.
Tasha Walderstrasse has discovered this wonderful trio
and I'll publish them soon.
Tonight, I would like to honor Marie Bailey.
who was a pioneering airplane pilot.
She flew from England to South Africa in 1928.
During this journey, she met him.
with the archaeologist Gertrude Caton-Thompson
and three years later,
together with the archaeologist Elinor White-Garner,
They monitored the Harga Oasis.
for two weeks with an airplane.
It was published
in the Journal of Antiquity in 1931.
With these examples, we have seen
since the very beginning of aerial photography,
Many types of devices are used
for the aerial camera or the photographers.
Balloons, airplanes, yachts, and drones of today.
In the exhibition,
I have chosen to highlight the flying devices
rather than the techniques for taking photos
or the resolution of the photos
or if the oblique or vertical photos
They are better than the others.
Why? Because the images
prizes thanks to a pole
kept on the ground,
with sensors or satellites
They have very different sizes.
And this interweaving of scales is crucial.
to understand the place.
A settlement does not exist alone.
It is a part of a network, a landscape
and it is connected to distant places
and to other landscapes.
But let's now begin with the site size
using the example of Megiddo.
In Megiddo, during the 1930s,
They begin to use a sensor.
to capture the details of the ongoing excavation.
And it is still a very common practice
to use a pole for the same purpose
and to obtain very high details
on the excavation architecture
to produce accurate plans.
During the preparation of the exhibition,
We were very happy.
to discover the first balloon
used in Megiddo in 1929.
A flight, two good photos,
and the objectives were achieved.
These two photos are the beginnings.
for several years of use
with more powerful balloons.
In a letter from Guy,
Who was the president of the exhibition?
At the time, a correspondence with Breasted,
We learned that Guy wanted to try
to want to fly himself with a good balloon
on the architecture of the exhibition.
Breasted does not agree with that.
which is perfectly understandable.
Why would he have wanted to do that?
Because the balloon was difficult to maneuver
and, in particular, it was a bit complicated
to keep it at the same height
to achieve good coverage of the architecture.
But in the end, they managed to do it.
and, for example, in the center,
You can see part of the site.
under the excavation
with the architecture very visible.
They also went even higher,
about 400 meters above ground
to get a photo
for the entire month of Tel Megiddo.
In the center photo,
You can see the shadow of the balloon.
With regard to Guy's publication
and his correspondence with Breasted,
They made an excellent use of it
of these photos.
They managed to complete the plans.
They started in the field
and completed the plans with the photo in the office.
They also brought the photos into the field.
so that they may stand out
among the different layers
where they were excavated.
It is a tradition that is still in use
in Megiddo, where they are using it now
modern and digital techniques,
with drones, to take aerial views
of excavation and produce wonderful 3D models.
The balloon was not the preferred device
to take aerial photos
in archaeology.
The balloon was preferred over the long duration.
from the aerial photograph
in the context of archaeology.
You can see here, in 1967,
Robert McCormick Adams
former director of the Institute
who has experienced
The use of a balloon in Nippur and Uruk.
Below, you can see photos
from Nippur during the excavation.
According to Adams's notebook entries,
We can also learn that the balloon
is not always easy to handle.
We can have sales that are too strong
you are not strong enough,
On the contrary.
But it's always the setup
who was preferred instead of the ball.
Quails are also something
what we can bring to the field
when we cannot use drones,
which can still be useful today.
Of course, when we can use the drones
And for UAVs, we prefer to use them.
And there are digital cameras
that allow us to take
a large quantity of photos
high resolution.
Here, you can see the excavation.
to Suresa and the architectural plans
that can be produced or completed
From these photos, how they did it
to Megiddo at that time.
Let us now change the size of our study.
During the 1920s and 1930s,
the development of archaeology
As a discipline, its origins
and photographic methods
and surveillance have truly
carried out through the use of airplanes.
Aircraft also allow for
to cover larger areas,
The purpose is not the same.
We are here to conduct a surveillance.
and a study of the landscape.
And thanks to the on-site expedition
In Iran, we can see
what we have in Isaac's archive
A wonderful documentation.
Schmidt was truly methodical.
when he had prepared
the various flights
They drew by hand
maps of flight routes.
They recorded every flight
and the details of the car.
They also looked
the nature of the aircraft,
like here a sea,
or else remnants and ruins.
Everything has been recorded.
Each interesting feature
was photographed,
with explanations
on the way of taking the photo,
the altitude, if they were oblique,
verticals, etc.
Even if Schmidt was the leader
of the excavation of an important site
like Persepolis of Rey,
What is interesting
it's that he had also
great interest
in the area around this site.
For example, he carried out a mapping
and a guard
from the plane of Persepolis.
In 1937, they stole several times
on the Persepolis plane.
They conducted a surveillance.
of the entire aircraft,
from one to the other
to see those long shelves
on one side and on the other
He recorded each ruin,
each remaining part of the airplane,
And he took some photos
of each site.
They gave him a number.
To be sure, and they explain
How the photos were taken,
altitude, etc.
On the airplane itself,
During the surveillance, he was not merely
interested in the main site,
but also by hydraulic features,
like Madame Oudbandy-Meymane,
Located to the south of the Persepolis plane.
For me, it was already
landscape archaeology
Schmitt already had the intention
to hear the big picture,
as Poidebard did in Syria
When he was writing the novel Limes.
Let's continue with the archaeology of the landscape
and its pioneers.
Here is a small piece
from the archive of Robert Marconiq-Adams,
former director of Isaac
As I've already said.
I can also see McGuire Gibson,
Professor of Mesopotamian archaeology.
During the 1960s and 1970s,
One could say that they were
the early years of landscape archaeology
It was an era when
most of the work
was handmade.
For someone like me,
who uses a geographic system
and who does space archaeology
thanks to a computer
It's incredible to see
that they did it by hand,
like the distribution of height
sites and their assignments
What is also incredible
it is that in 1917,
Gibson introduced the use of computers
He asked his students
to use computers
to learn the new practice
of space archaeology.
Then came the 1990s
And there was truly a turning point
for space archaeology.
A turning point that Tony Wilkinson
has benefited from the foundation
Camel Lab in 1998.
That's an interesting quote.
a conference on space archaeology
published in 2002.
Discipline is now clearer.
on his target,
that is to say, read and understand
the landscapes of the past
and integrate this information
with other forms of evidence
of surveillance and excavation.
For far too long,
Space archaeology has been seen
as a separate specialty
with its focus on discovery
new sites,
but without the use of
information generated.
Space archaeology is now
an important part
space archaeology
who assists in the research
and offers better validity
for conservation and management strategy.
I will return to this later.
In the exhibition, we see
the second section
dedicated to the founding of the Camel
and to the introduction
geographic data system
space archaeology
and to space archaeology,
as well as the importance
from the first wave
declassification of images
of Cold War satellites.
Wilkinson was a visionary.
regarding the potential
of these images when he founded Camel.
The objective of the Camel Lab
was to collect
as many images as possible.
We have changed the scale
during the Cold War,
almost all of Western Asia
was covered by satellites
who were taking pictures of the place.
They were declassified in 1995.
And ever since, we have been using them
to study the ancient landscape.
In 1990, thanks to the development
from the GIS,
we were able to
assemble various types
easier documentation
like old maps
or the recordings
what we do on the ground
with a GPS or a total station.
What we can see in this section
lies in the importance of the fact
where these images were taken
before or at the beginning
great changes
in the landscape of Western Asia.
I am returning to the inheritance
and the importance of the heritage
and of ancient imagination
Who has preserved images of the past?
who may have disappeared today.
Here is the example of the Temple of Belle
in Palmyra
beautifully captured by Prado Bar
during the 1930s.
In the top right image,
We can still see the Temple of Beauty,
but you can notice
to the south of the Temple,
the old part of the town of Tannemore
has disappeared.
The landscape has already changed.
for several decades
In 2022,
The temple is no longer there.
because it was destroyed in 2015
by ISIS.
These preserved images of the past
are very important for
Monitor and damage or destroy the heritage.
It is an important part.
of the history of archaeology.
When we prepare an exhibition,
We must make choices.
This part was too important
to be presented in the exhibition
but I am happy
to be able to mention it tonight.
We are arriving now
at the latest development
in aerial archaeology
and to the new methodology
who will bring aerial archaeology
in the future.
I'm talking about artificial intelligence
and deep learning.
Here is an example
of a preservation project
from large-scale inheritance.
They used
deep learning
to monitor the damage
in Afghanistan.
They succeeded quickly
to recognize on the images
the sites that have been
recently recruited
The Camel's Laboratory
began also to develop
recently deep learning
One of the centers,
since its creation
was at the forefront
aerial archaeology
and the archaeology of damage.
I would like to mention
That is important.
to think of our children
when presenting
the past to the general public.
It was a great pleasure.
to prepare a book
for children
with the French illustrator,
Jérôme Agostini
It is available for free
online
Do not hesitate to download it
and to share it
with your neighbors.
It's for the children,
but I am sure that adults
They can learn a lot from it.
I invite everyone
to look at him.
Thank you for your attention.
We haven't tried yet
the pigeon in aerial archaeology,
but some have done it.
Thank you.