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Benvenuti in queste pagine dedicate a scienza, storia ed arte. Amelia Carolina Sparavigna, Torino

Showing posts with label archaeology. Show all posts
Showing posts with label archaeology. Show all posts

Saturday, July 16, 2011

The Lady of Introd

Notizia ANSA
Trovato in Valle d'Aosta scheletro donna di 5.000 anni fa. Contemporanea di Oetzi, l'uomo del Similaun, ritrovato nel '91 l confine tra l'Italia e il Tirolo austriaco. E' ora chiamata la Signora di Introd, 16 luglio, 2011.
Found in Valle d'Aosta the skeleton of a woman, lived 5,000 years ago. She was contemporary of Oetzi the Iceman, discovered in '91 at the Italian border with Austria. She is called the "Lady of Introd", July 16, 2011.

"La Stampa"
http://multimedia.lastampa.it/multimedia/in-italia/lstp/65668/

E' stata soprannominata la "Signora di Introd" e dopo 5000 anni la sua sepoltura è ancora perfetta. Lo scheletro di questa donna ancora misteriosa e ancora senza età, è stata ritrovato all’interno di una tomba ad Introd, paese alpino di poco più di 600 abitanti, non lontano da Aosta. Rannicchiata sul fianco destro e con il capo rivolto a nord ovest, non ha attorno nessun oggetto di corredo funebre. I resti della signora sono già stati trasferiti in laboratorio, dove nei prossimi giorni saranno oggetto di analisi approfondite per determinarne l'età, le abitudini alimentari e la causa di morte. L’Assessore all’Istruzione e Cultura Laurent Viérin esprime“grande soddisfazione per questo importante ritrovamento, unico nel suo genere, che testimonia la ricchezza e la qualità del patrimonio archeologico valdostano e della nostra storia.”

She is the "Lady of Introd" and 5000 years after the burial her skeleton is still perfect. This woman is a mystery and her age has yet to be determined. She was found in a tomb, at Introd, a mountain village with 600 inhabitants, not far from Aosta. Huddled on her right side and with the head facing west, no objects had accompanied her burial place. The remains of the woman have already been transferred in a laboratory, where, over the next few days, it will be determined the age, habits and cause of death. The Head of the Education and Culture Council, Laurent Vierin, told that there is a great satisfaction for this important and unique discovery, demonstrating the abundance and quality of the archaeological heritage of the Aosta Valley.

Friday, July 15, 2011

Desert kites and stone circles

Stone structures in the Syrian Desert - by Amelia Carolina Sparavigna, Dipartimento di Fisica,
Politecnico di Torino, Torino, Italy

Paper published on ARCHAEOGATE http://www.archaeogate.org/
Here I am reporting a part of my paper, with some figures. To read the complete article, visit the link

An arid land, known as the Syrian Desert, is covering a large part of the Middle East, extending from the northern Arabian Peninsula to the eastern Jordan, southern Syria, and western Iraq. In the past, this harsh environment characterized by huge lava fields, the "harraat" [1], was considered as a formidable barrier between Levant and Mesopotamia. This desert possesses two volcanic regions: one is the Jabal al-Druze in As-Suwayda Governorate, the other field is the Harrat Ash Shaam in South Syria, south-east of Damascus [2,3]. When we observe these huge harraat from space, using for instance the Google Maps, we discover that they are crossed by several stone structures, known as "desert kites", which were the Neolithic stone traps for the game. These structures were firstly observed by the pilots of the Royal Air Force in the 1920s, flying over the desert. The pilots named them "kites", because these lines reminded of kites used by children to play [4]. Beside the kites, many stone circles are visible too, as many Stonehenge sites dispersed in the desert landscape. Probably, this harsh environment was friendlier and then quite populated in ancient times.

We usually imagine our ancestors, before they settle down, as people simply hunting and gathering for food, but this is not true. The "desert kites" are the remains of an ancient hunting technique based on stone-walled traps, the construction of which surely involved several people for long times. The desert kites were used to push large herds of animals into some enclosures, or, in the worse case, to fall off from steep cliff edges [4]. The simplest structure of a desert kite has a triangular shape, consisting of two long, low walls built of stones and arranged in a V-shape, like a funnel, ending as a corral. Hunters pushed the game between the walls, trapping then the animals into the end of the structure. It is usually considered that the animals were there slaughtered "en masse" [4-7]. The fauna remains found in these sites are including gazelles, Arabian oryxes and other species that are now rare or driven to extinction in the Levant [4]. A research at the Mesopotamian site of Tell Kuran, found what seems to be a deposit from a mass kill. According to [6], it was the overuse of desert kites a possible cause of extinction of several species.


Fig.1. The wonderful structure of a “desert kite”(Jordan), as it can be observed with Google Maps.



Fig.2: A landscape with desert kites and other stone structures (Jordan). This is an image adapted from the Google Maps. The visibility of marked areas has been adjusted with image processing software.


Fig.3: Desert kites. The images have been adapted from the Google Maps. The visibility of the stone strctures has been adjusted with image processing software.

Typically, a desert kite possesses two, three or more small circular enclosures on the edge of its corral (in Fig.1 a wonderful structure as it can be observed with Google Maps, other examples in Fig.2 and 3). Some ancient rock art images show these hunting traps [8], depicting the role of the 'walls' of the kites. ...
....
As we discussed in the paper on Arabia [11], an interesting fact is necessary to note [8]. In the Khaybar area, Arabia, there are some remains of Neolithic villages very close to the hunting desert kites. Linking the "desert kites" with "human villages" could be a mistake, because wild animals are avoiding places where people live. Since the Khaybar area is full with ancient burial structures, sometimes placed inside the desert kites, a possible conclusion is that these burial mounds are more recent than the desert kites [8]. Because this conclusion is coming from the observation of satellite images, it seems that the satellites, and in particular the Google Maps, can help the archaeological researches providing a portrait of the human collective activities in the early stages of civilization.
Even the Syrian Desert is dispersed with circular stone structures and mounds, sometimes inside or near the desert kites (see Fig.2 for instance). On these earlier human settlements, news was announced last year that Robert Mason, archaeologist of the Royal Ontario Museum, discovered what we can define as a Syrian Stonehenge [12]. The site, near the Deir Mar Musa al-Habashi monastery, is composed by some tombs and stone circles. From the stone tools he found there, it's likely that the structure dates from the Middle East's Neolithic Period, roughly ranging from 8500 BC to 4300 BC. In Western Europe, the first structures built of stone date back approximately to 4500 BC. The Syrian site is then quite older than the European sites. Edward Banning of the University of Toronto says that more fieldwork is necessary because it is possible that the landscape that Robert Mason has identified could be an example, in the Neolithic period, of burial practices out of the settlement, that is, an off-site cemetery [12].
The report in [12] is continuing with a suggestion by Julian Siggers, of the Royal Ontario Museum. Remembering that agriculture spread from the Near East to Europe, he is proposing the possibility that the stone landscapes, that is the creation of stone circles, had travelled with agriculture. On the other hand, Banning is replying that stone structures are found throughout the world and that people in Western Europe could have developed the stone landscapes independently of the people in Middle East. According to Edward Banning, the site studied by Mason is not unique [12,13]. "Archaeologists have detected, via satellite photos, what appear to be cairns and stone circles in other areas, including the deserts of Jordan and Israel. However, he admits that most of these things have not received a lot of archaeological investigation."
....

References
1. In Arabic, the lava fields are the harraat, sing. harrah; before a name, harrat.
2. Jabal al-Druze Volcanic Field in Southern Syria – May 16th, 2010, http://www.eosnap.com/image-of-the-day/jabal-al-druze-volcanic-field-in-southern-syria-may-16th-2010/
3. Global Volcanic Program, Es-Safa, http://www.volcano.si.edu/world/volcano.cfm?vnum=0300-05-
4. Mysterious desert lines were animal traps, Larry O'Hanlon, Apr 20, 2010, http://news.discovery.com/history/desert-lines-hunting-tool-kites.html
5. Desert Kites, Ancient Hunting Technique Desert Kites, K. Kris Hirst, About.com Guide, http://archaeology.about.com/od/dathroughdeterms/qt/Desert-Kites.htm
6. Role of mass-kill hunting strategies in the extirpation of Persian gazelle (Gazella subgutturosa) in the northern Levant, Guy Bar-Oz, Melinda Zeder, Frank Hole, Proceedings of the National Academy of Sciences, Early Edition, May 3, 2011, vol. 108, no. 18, 7345-7350, doi:10.1073/pnas.1017647108,
7. Gazelles caught in ancient Syrian 'killing zones', Jonathan Amos, BBC News, 19 April 2011.
8. Khaybar Desert Kites, Vanja Janežic, alsahra.org/wp-content/uploads/2009/02/khaybar-desert-kites.pdf, see also http://www.megalithic.co.uk/article.php?sid=2146412866
9. The function of "Desert Kites" - Uniting or livestock husbandry? B. Rosen, A. Perevolotsky, Paléorient, Vol.24, Pag. 107-111, 1998.
10. The Desert "Kites" of the Badiyat Esh-Sham and North Arabia, A.V.G. Betts, S. Helms, Paléorient, Vol.13, Pag. 41-67, 1987.
11. Arabia: from craters to stone circles, Amelia Carolina Sparavigna, Archaeogate, 19-11-2010, and also, http://arxiv.org/abs/1011.2111
12. Syria's Stonehenge: Neolithic stone circles, alignments and possible tombs discovered, Owen Jarus, Monday, 1 March 2010, The Independent, http://www.independent.co.uk/life-style/history/syrias-stonehenge-neolithic-stone-circles-alignments-and-possible-tombs-discovered-1914047.html
13. A web-site, 27 March 2011, http://www.stonepages.com, published the news of a 11,000-year-old settlement unearthed in Syria. A Syrian-French archaeological mission unearthed a small village in the archaeological site of Tel Qarasa in the west of Swaida province dating back to around 11,000 years. The search conducted at the site over the last two years allowed the archaeologists to discover a tiny village of 8 round houses whose inhabitants depended on fishing and growing cereal crops and wild fruits for their living. The Syrian-French mission said the excavations have revealed 522 archaeological sites in al-Lajat region from the ancient historical periods of the 7th millennium BCE, among which was Tel Qarasa.
14. More images at https://sites.google.com/site/syriandesertsatelliteimagery/
15. According to Wikipedia, desert kites and stone circles can be considered as Petroforms.

Fig. 4: A stone circle in Syrian Desert. The images have been adapted from the Google Maps.

Fig. 5: Other stone circles in Syrian Desert. The images have been adapted from the Acme Mapper.

Fig. 6: Stone landscape in Syrian Desert. The images have been adapted from the Google Maps. Note the “dots” that are surrounding the circular complexes.

Thursday, July 14, 2011

Abusir - from Pliny the Elder to Google Maps

Abusir: from Pliny the Elder to Google Maps
Amelia Carolina Sparavigna, Dipartimento di Fisica, Politecnico di Torino, Torino, Italy

"Abusir, the House of Osiris, is the name given to an Egyptian necropolis of the Old Kingdom period. This site is a part of a huge area, from Giza to Dahshur, rich of archaeological remains and covered by many pyramids. The paper is reporting concisely some archaeological studies on Abusir. We start from the description given by Pliny the Elder and end proposing the use of Google Maps."

Read more


Map of Abusir
In the upper part of the figure, we see an image from Google Maps, obtained after a suitable image processing, showing the Abusir site. In the lower part, a map from http://en.wikipedia.org/wiki/Abusir, for comparison. 

Caligae

A massive statue believed to be that of  Emperor Caligula, sitting on a throne, coming from an illegal dig south of Rome, was unveiled. The statue, broken in several large pieces, was found last January when Finance Police stopped it from being smuggled out of the country. The  "tomb raiders" tried to sell this archaeological treasure on the black market. The statue has feet wearing "caligae": this is why the person shown by the statue is identified as the emperor Caligula. 


The Emperor Caligula. Statue in the Museo Nazionale, Naples.

Caligula's statue will come back home

"La statua dell’imperatore Caligola torna a Nemi. A recuperarla il comando provinciale della Guardia di Finanza di Roma, guidato dal generale Ignazio Gibilaro, nel corso di una più vasta operazione di tutela del patrimonio artistico nazionale. «E' stato recuperato un pezzo di straordinaria bellezza e rinvenuto un sito archeologico finora sconosciuto alla stessa sovrintendenza – ha spiegato Giuseppina Ghini, direttrice del Museo delle Navi dove sarà collocata la statua dopo il suo restauro - Abbiamo sottoposto la statua ad una prima ripulitura, presto inizieremo il restauro ma per ora si sta ancora studiando, analizzando»."
http://www.newnotizie.it/2011/07/13/ritrovata-la-statua-di-caligola-in-trono/
Emperor Caligula's statue is coming back home to Nemi. It was the provincial team of the Guardia di Finanza in Rome, led by General Ignacio Gibilaro, to retrieve it, during an police action to protect the national artistic heritage. According to Giuseppina Ghini, head of the Museum at Nemi,  this staue is a piece of extraordinary beauty, discovered in a previously unknown archaeological site. The statue, after restoration, will be soon bach home in the Museum of Nemi. 

Tuesday, July 12, 2011

Earliest Roman basilica found outside Alexandria - Ahram Online

" At Al-Baron area in Semouha district, south of Alexandria, an Egyptian archaeological mission has discovered several significant monuments and artefacts that will help in the writing of the history of the area.

 During excavations, archaeologists uncovered the earliest Roman civil basilica yet found on top of a Ptolemaic temple dedicated to the three Alexandria deities (Isis, Serapis, Harpocrates) along with a collection of terracotta statues."
Earliest ever civil Roman basilica found outside Alexandria - Greco-Roman - Heritage - Ahram Online

Tuesday, July 5, 2011

Egyptology on line resourches
http://egypt.online-resourcen.de/

Royal scenes dated back to Dynasty Zero

The oldest depiction of an Egyptian King wearing the Upper Egyptian crown
“Dr. Maria Carmela Gatto (Director of Aswan-Kom Ombo Archarological Project) made a discovery at Nag el-Hamdulab site (North west of Aswan) of the oldest graffiti shows a King wearing the Upper Egypt headgear(crown) with a group of royal scenes dated back to dynasty zero.” Said Dr. Zahi Hawass. “The find shows many hieroglyphic graffiti and the first drawings shows a complete royal celebration looks exactly like what was known in the different Pharanoic eras, showing the Pharaoh wearing his white crown accompanied by Horus followers or the royal court.”Hawass added."
More on the Dinasty Zero (Naqada III) http://en.wikipedia.org/wiki/Naqada_III

More on the Dynasty Zero

"5,200 year-old rock drawings of earliest Ancient Egyptian celebrations unearthed, by Associated Press, Published: July 4 CAIRO — Egypt’s Antiquities Authority says archaeologists have unearthed a 5,200-year-old rock drawing depicting a royal festival during Ancient Egypt’s earliest dynasty. The ministry says the scenes were part of a series of rock drawings featuring hunting, fighting and celebrations along the banks of the Nile River."

Monday, July 4, 2011

Ice Age Art

L’arte più antica d’America trovata su un osso di mammut, LUGLIO 4, 2011. di Aezio
"I ricercatori dello Smithsonian Institution e dell’Università della Florida hanno confermato la veridicità di un misterioso manufatto scoperto in Florida nel 2006: un frammento osseo, di circa 13.000 anni fa, con incisa l’immagine di un mammut o un mastodonte. Questa incisione è l’esempio più antico e l’unico conosciuto di arte dell’era glaciale a raffigurare un Proboscidato nelle Americhe. La ricerca del team è stato pubblicata sul Journal of Archaeological Science
."

" Scientists Reveal a First in Ice Age Art. June 22, 2011. Researchers from the Smithsonian Institution and the University of Florida have announced the discovery of a bone fragment, approximately 13,000 years old, in Florida with an incised image of a mammoth or mastodon. This engraving is the oldest and only known example of Ice Age art to depict a proboscidean (the order of animals with trunks) in the Americas. The team’s research is published online in the Journal of Archaeological Science. The bone was discovered in Vero Beach, Fla., by James Kennedy, an avocational fossil hunter, who collected the bone and later, while cleaning it, discovered the engraving. Recognizing its potential importance, Kennedy contacted scientists at the University of Florida and the Smithsonian’s Museum Conservation Institute and National Museum of Natural History."

Friday, July 1, 2011

List of Egyptian sites

The Ministry of State for Antiquities (MSA) is responsible for hundreds of sites dating to every period of Egypt’s past. Many have been designated as World Heritage Sites by UNESCO. The web site of MSA is proposing a list of sites organized alphabetically, by region, or by the period to which each site’s main monuments date. http://www.sca-egypt.org/eng/SITE_List.htm

Thursday, June 30, 2011

Who and where

Who and where: Current and Recent Foreign Missions in Egypt http://www.sca-egypt.org/eng/FMR_CURRENT-MISSIONS_MP.htm
"The principal mission of the Ministry of State for Antiquities, previously known as the Supreme Council of Antiquities, is to protect and promote the cultural heritage of Egypt, both independently and in cooperation with national and international organizations. To achieve its goals, it formulates and implements all policies concerned with antiquities; issues guidelines and permits for the excavation, restoration, conservation, documentation, and study of sites and monuments; and manages a country-wide system of antiquities museums."

Dakhla Oasis

A French excavation team made several discoveries in Balat village in the Dakhla Oasis, around 500 km south of Cairo. More at http://www.archaeogate.org/egittologia/article/1427/1/recenti-scoperte-archeologiche-nelloasi-di-dakhla.html
http://www.almasryalyoum.com/en/node/470508 and also
An ancient Egyptian federation

An ancient Egyptian federation

E il faraone inventò lo Stato federale, by Aristide Malnati
"Il federalismo ha avuto la prima manifestazione storica nell’Antico Egitto. ... è la conclusione dell’analisi degli elementi archeologici e storici, emersi in 30 anni di scavo sistematico sul sito di Balat, capoluogo dell’Oasi di Dakhla (200 Km a Ovest dell’odierna Luxor) durante il regno dei sovrani della VI Dinastia (2300-2200 a. C.); scavo condotto dall’archeologo francese Georges Soukiassian alla testa di un’équipe internazionale." Balat  è il più antico abitato egizio giunto fino a noi. "A Balat sono state rinvenute imponenti vestigia di quello che fu il fulcro del potere della regione più ricca d’Egitto, in particolare (ma non solo) durante la VI Dinastia. Qui risiedevano e facevano il bello e cattivo tempo i Governatori di tutta l’Oasi ... Godevano di forte autonomia e di reale possibilità di incidere anche in decisioni di politica nazionale. ... Se passiamo poi alla necropoli per l’eterno riposo dei, diremmo oggi, Presidenti della regione, il quadro della venerazione, in cui erano tenuti, si completa: ognuno fu sepolto in una mastaba, un’imponente sepoltura a sviluppo sotterraneo (quasi una piramide rovesciata), che sfociava nella camera funeraria superbamente affrescata con scene".
More
http://www.avvenire.it/Cultura/faraone_201106301208149670000.htm

As reported by Aristide Malnati, federalism had been developed for the first time in the ancient Egypt. This is a conclusion after analysis of archaeological and historical elements, lasted for 30 years during the systematic excavations on the site of Balat, Dakhla Oasis (200 km due west of Luxor). The period was that of the Sixth Dynasty (2300-2200 BC). The excavation is lead by the French archaeologist Georges Soukiassian.
Balat is considered the oldest Egyptian village. It was the most powerful center in one of the richest regions in Egypt, particularly during the Sixth Dynasty. Here lived the Governors of Oasis, having wide autonomy from the king and a real possibility to influence the decisions of the national policy.

Tuesday, June 28, 2011

New Pharaonic artefacts discovered in North Egypt - Ahram Online

"New Pharaonic artefacts discovered in North Egypt's site of San El-Hagar
A collection of painted blocks used in the construction of king Osorkon II’s temple have been unearthed in San El-Hagar in the Delta city of Sharqia"
New Pharaonic artefacts discovered in North Egypt's site of San El-Hagar - Ancient Egypt - Heritage - Ahram Online

Friday, June 10, 2011

The bent pyramid

Google Maps is an excellent service for archaeological survey. Let us look at the Bent Pyramid in Egypt.


After a processing by means of AstroFracTool and GIMP, we have


Or using the wavelets of Iris


Interesting for mapping sites! In my opinion, there are many other structures in these images which are connected to the pyramid (for instance, the one that seems a pool near the upper left corner), besides those listed in the following map.
This map is adapted from: 

Tuesday, June 7, 2011

The cradle of Egyptian pyramids

The cradle of pyramids in satellite images,  by Amelia Carolina Sparavigna, Dipartimento di Fisica, Politecnico di Torino, Torino, Italy
http://arxiv.org/abs/1106.0818

We propose the use of image processing to enhance the Google Maps of some archaeological areas of Egypt. In particular we analyse that place which is considered the cradle of pyramids, where it was announced the discovery of a new pyramid by means of an infrared remote sensing.

Saqqara and Dahshur are burial places of the ancient Egypt. Saqqara was the necropolis of Memphis, the ancient capital of the Lower Egypt. This place has many pyramids, including the well-known step pyramid of Djoser, and several mastabas. As told in Wikipedia, 16 Egyptian kings built pyramids there and the high officials added their tombs during the entire pharaonic period [1]. The necropolis remained an important complex for non-royal burials and cult ceremonies till the Roman times. Dahshur is another royal necropolis located in the desert on the west bank of the Nile [2]. The place is well-known for several pyramids, two of which are among the oldest and best preserved in Egypt. Therefore this site can be properly considered as the cradle of Egyptian pyramids [3]. Figure 1 shows the Djoser pyramid and the Great Enclosure at Saqqara. The two images have been obtained from Google Maps after an image processing with two programs, AstroFracTool, based on the calculus of the fractional gradient, and the wavelet filtering of Iris, as discussed in Ref.4. The reader can compare the images with the original Google Maps, using the coordinates given in the figure [5].
Recently the BBC announced the discovery in the area between Saqqara and Dashur, near the river Nile, of a new pyramid buried in the sand [6]. The pyramid has been observed by means of the infrared remote sensing. According to the images in Ref.7, it is located near the pyramid of Khendjer, discovered by Gustave Jequier in 1929, built as the tomb of king Khendjer, who ruled Egypt during the 13th Dynasty [8]. The pyramid currently lies in ruins, in part damaged during the excavations done by Jequier, and it is rising just one meter above the desert sand. The pyramid complex was enclosed by inner and outer walls. The inner wall was made of limestone, the outer wall was made of mud bricks. According to Wikipedia, the pyramid stood at about 37.35 meters high [8].
It is interesting to observe the structure of this pyramid from the space with Google Maps. After a processing by means of AstroFracTool and Gimp [4], we obtained the lower panel in Fig.2. According to Ref.[8], the ruins are rising only a few meters above the grounds; the Google Maps, however, after a suitable processing are displaying all the details of the Khendjer complex.
As BBC announced, Sarah Parcak, of the University of Alabama, used some data from NASA infrared equipped satellites to survey the Egypt. Waiting for a more detailed report on her researches and on the methods the team used, let us observe the images that some Web sites are publishing, in particular that of the Khendjer complex (for the author it is impossible to tell whether the images are the original infrared ones or not). According to [7], it is in this complex that there is one of the discovered pyramids. The site is shown in Fig.3, where the upper panel is displaying as it appears in Google Maps, and the lower panel shows it after processing by means of AstroFracTool. It seems a ghost image having the same features of the complex outlines in Fig.2.
According to the Egypt's Minister of State for Antiquities Affairs, Zahi Hawass, the new technologies are able to locate the remains beneath the sand [9], but it is necessary to identify them with archaeological researches on the spot. Of course, a research on the area will be able to tell the name of the king buried in the site.
As discussed in Ref.10, there are several remote sensing techniques that can be useful in archaeology. For what concerns the Google Maps, let me remark its use in the study of the Merowe Dam and the paleochannels of the Nile where we compared the images from SIR-C/X-SAR imaging radar system, with those from Google [11].
It is my opinion that the image processing of Google Maps can be used for an archaeological survey of Egypt (see for instance, some examples on the satellite images of Amarna, [11]), besides of course, all the satellite methods used for geophysical researches. For what concerns the proposed processing of Google Maps, it is important to note the following fact: it is during the processing activity, when the user is changing parameters and details appear in the picture, that it is easier to recognize them. The information is already in the image: it is only enough to take it out.

References
1. http://en.wikipedia.org/wiki/Saqqara
2. http://en.wikipedia.org/wiki/Dahshur
3. From A to Z, Dahshur, http://www.ancient-egypt.org/index.html
4. Enhancing the Google imagery using a wavelet filter, A.C. Sparavigna, http://arxiv.org/abs/1009.1590
5. See images at the site https://sites.google.com/site/saqqaradahshursatellite/
6. Egyptian pyramids found by infra-red satellite images, F. Cronin, BBC New, 24 May 2011,
http://www.bbc.co.uk/news/world-13522957
7. http://www.dailymail.co.uk/sciencetech/article-1390667/Seventeen-lost-pyramids-thousands-buried-Egyptian-settlements-pinpointed-infrared-satellite-images.html?ito=feeds-newsxml, and also http://www.allvoices.com/contributed-news/9202577-egyptian-pyramids-found-by-infrared-satellite-images
8. http://en.wikipedia.org/wiki/Pyramid_of_Khendjer
9. News broadcast by BBC is inaccurate, says Hawass, N. El-Aref, Ahramonline, 26 May 2011, http://english.ahram.org.eg/
10. The satellite archaeological survey of Egypt, A.C. Sparavigna, http://arxiv.org/abs/1105.6315
11. The Merowe Dam on the Nile, A.C. Sparavigna, http://www.archaeogate.org/, and, Merowe Dam and the inundation of paleochannels of the Nile, A.C. Sparavigna, http://arxiv.org/abs/arXiv:1011.4911
12. Some image processing on Amarna,
https://sites.google.com/site/amarnasatelliteimagery/


 Fig.1: The Djoser pyramid and the Great Enclosure at Saqqara, Egypt. The images have been obtained from Google Maps after a processing by means of AstroFracTool and Gimp, in the upper panel, and Iris wavelets, in the lower panel. For a discussion of the processing see Ref.4. The figure is giving the coordinates for a comparison with the original Google Maps’ image [5].

 Fig.2 The Khendjer complex as seen from the space, with Google Maps. After a processing by means of AstroFracTool and Gimp [4], we have the lower panel. According to Ref.[8], the ruins are rising only a few meters above the grounds; Google Maps, however, after a suitable processing are displaying all the details.


Fig.3. According to [7], it is in the Khendjer complex that there is one of the discovered pyramids. The upper panel is showing as it appears in Google Maps, the lower panel shows it after processing by means of AstroFracTool. It seems a ghost image having the same features of the complex outlines in Fig.2.

Wednesday, June 1, 2011

The satellite archaeological survey of Egypt

The satellite archaeological survey of Egypt
by Amelia Carolina Sparavigna

A recent announcement from BBC of 17 new pyramids discovered in Egypt arouses the interest on the archaeology aided by satellites imagery [1]. These pyramids, as many other ancient remains in Egypt, are under the sand of the desert. They were discovered by means of a remote sensing with infrared sensors. In fact, the archaeological surveys, usually performed by means of airplanes, are necessary to observing the sites from above and gain a better view of the landforms. In some cases, the survey of a region ends with the discovery of new archaeological sites or with the precise location of an ancient lost town [2].
Satellites give different opportunities, according to their sensorial equipment. BBC announced that Sarah Parcak, of the University of Alabama, used some data from NASA infrared equipped satellites to survey the Egypt. Waiting for a more detailed report on her researches and on the methods the team used, we can just tell that the infrared inspection is based on collecting the radiances in various wavelength bands, in the infrared range of the electromagnetic spectrum. The resulting profiles depend on the methods used to obtain the surface data from radiances. To have a good detection, the surface must be free from clouds.
The Egypt's Minister of State for Antiquities Affairs, Zahi Hawass, seems to be quite interested to the new technologies, but, as he told Ahram Online, the satellite infrared images are only able to locate the remains beneath the sand [3]. It is then necessary, according to Hawass, to identify them with archaeological researches on the spot. From the news on the Web it is not clear how many sites have been analyzed by the team of the University of Alabama. It seems that the amount of data collected by the researchers is huge.
Besides the analysis with infrared imagery, let us consider that there are other remote sensing techniques that can be useful in archaeology: among them we have the LIDAR system, which is, as we discussed in [4], able to see under the canopy of the forests, and the SIR-C/X-SAR imaging radar system, which has waves that can penetrate the clouds, and, under certain conditions, vegetation, ice and dry sand [5]. Of course, these facilities are not freely available and needs financial supports.
We could then ask ourselves if a free satellite service, such as Google Maps, can help in some archaeological researches in Egypt. It is my opinion that the answer is positive. In studying the Merowe Dam and the paleochannels of the Nile we could compare the images from SIR-C/X-SAR imaging radar system, with those of the Google Maps [6]. After a suitable image processing with some freely downloadable programs (GIMP, IRIS, AstroFracTool,[7]), the Google Maps revealed astonishing details of the network of old buried channels of Nile in the Nubian region. The same for the "raised fields" near the Titicaca Lake in Peru: the processing of the images clearly displayed the network of these ancient earthworks and canals [8]. Many of these structures are probably buries under some sediments of the lake.
Let us then try to apply the image processing to the Google Maps of those areas in Egypt, where according to the press, the infrared satellite imagery is giving good results. We see that one of these investigated areas is that of Tanis, a town of the ancient Egypt. In Fig.1, it is shown what we can have after processing the image from Google Maps. The upper part of the figure is obtained using the GIMP image- processing program, to adjust brightness and contrast. The lower part is gained after a processing with the wavelet filtering of Iris. These images seem to contain quite clear information on the buried town too.
Another example is the site where there are buried pyramids, according to the press [9,10]. The site is at Saqqara: Figure 2 shows the area as can be seen after a processing of Google Maps. The reader is invited to compare these images with those published on the Web, copyrighted BBC. I guess that after comparison, the reader can draw some positive conclusions about Google Maps and its use for an archaeological survey of Egypt. I am proposing another example of the use of image processing in Fig.3. This is the Great Temple at Amarna, buried under the sand (more images at [11]).
As Zahi Hawass is telling, it is necessary to understand whether some “anomalies” revealed by the satellite remote sensing are archaeological remains or not. This means that archaeology can only receive benefits for geophysics researches and the related use of remote sensing.

References.
1. Egyptian pyramids found by infra-red satellite images, F. Cronin, BBC New, 24 May 2011, http://www.bbc.co.uk/news/world-13522957
2. Documentation of the Abandoned Town La Ciudad Perdida in Peru Combining VHR Satellite Data and Terrestrial Measurement, K. Pavelka, M. Bukovinsky, J. Svatuskova, Remote Sensing for Science, Education and Natural and Cultural Heritage,  Rainer Reuter Ed., EARSeL, 2010.
3. News broadcast by BBC is inaccurate, says Hawass, N. El-Aref, Ahramonline, 26 May 2011, http://english.ahram.org.eg/
4. Lines under the forest, A.C. Sparavigna, http://www.archaeogate.org/, and http://arxiv.org/abs/1105.5277.
5. SIR-C X-SAR Earth-Imaging Radar for NASA's Mission to Planet Earth, Infopage.
6. The Merowe Dam on the Nile, A.C. Sparavigna, http://www.archaeogate.org/, and, Merowe Dam and the inundation of paleochannels of the Nile, A.C. Sparavigna, http://arxiv.org/abs/arXiv:1011.4911.
7. Enhancing the Google imagery using a wavelet filter, A.C. Sparavigna, http://arxiv.org/abs/1009.1590.
8. The geoglyphs of Titicaca, A.C. Sparavigna, http://www.archaeogate.org/ and Symbolic landforms created by ancient earthworks near Lake Titicaca, A.C. Sparavigna, http://arxiv.org/abs/1009.2231.
9. http://www.dailymail.co.uk/sciencetech/article-1390667/Seventeen-lost-pyramids-thousands-buried-Egyptian-settlements-pinpointed-infrared-satellite-images.html?ito=feeds-newsxml, and also
http://www.allvoices.com/contributed-news/9202577-egyptian-pyramids-found-by-infrared-satellite-images
10. In my opinion, the published images at [9] are not the real infrared images of the Alabama University team, but this is what is published on the web.
11. Some image processing on Amarna, https://sites.google.com/site/amarnasatelliteimagery/



Fig.1: Tanis as can be observed after processing an image from Google Maps. In the upper part, brightness and contrast had been adjusted with GIMP. The lower image was obtained with a wavelet filtering with Iris. It seems that the image is giving quite good details too.



Fig.2. This is the Saqqara area where there is a buried pyramid. The image has been obtained after processing a Google Maps image. According to Refs.[9], in this area there one of the buried pyramid announced by BBC [1]. (SEE PLEASE THE NOTE AT THE END OF THIS POST)



Fig.3: The Great Temple in Amarna, as can be seen after processing a Google Maps image.


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NOTE 11 November 2018

For what concerns the Figure 2, here I would like to show you also - in the blue insert of the following image - that published by BBC of the pyramid.


Here the insert is used  just for information, to show in an image of Google Maps, after enhancing the contrast, the place where Sarah Parcak told she has evidenced a pyramid. I beg BBC pardon for the use of the insert, but I have seen today, at the following  link
 that my image was used for a hoax of a human settlement under the ice. Let me thank Maarten Schenk for having evidenced this fact.  I am quite upset by the use of an image of mine in this hoax.
I repeat, I am discussing the work by Sarah Parcak and the use of satellites for the archaeology in Egypt. Let me stress that the IMAGE is an image from Egypt, and the article of BBC was on Egypt. Nothing to do with ICE, only SAND!


Amarna

The following images are showing a great temple in Amarna, the city of Akhetaten.
The images have been obtained applying an image processing to Google Maps. 




The image processing is done by means of  GIMPIRIS and AstroFracTool.