(Press-News.org) In Syria's largest city, Aleppo, damage to buildings and infrastructure steadily increased over a ten-month period ending in May 2013, according to a new analysis by AAAS of high-resolution satellite images. Virtually all of the destruction appears to be in rebel-controlled or contested areas, and a substantial amount is in Aleppo's Ancient City, a UNESCO World Heritage Site.
Aleppo has been the site of ongoing conflict since July 2012. Since then, the city has experienced a nearly constant rate of damage to its physical structures, at about three incidents per day on average, AAAS reported. The researchers also documented other signs of intensifying military activity, such as an increased deployment of military equipment and a proliferation of improvised roadblocks.
The findings appear in a 7 August report by the Geospatial Technologies and Human Rights Project at AAAS. The analysis, completed independently by AAAS at the request of Amnesty International, USA (AIUSA), compares nine satellite images collected at regular intervals between August 2012 and May 2013.
"We are documenting a war zone," said Susan Wolfinbarger, Director of the Geospatial Technologies and Human Rights Project. "It's a really dangerous situation in Aleppo. There are people on the ground reporting out, but they're in specific, localized places and not able to move around freely. What we're able to do is provide a comprehensive look at the situation over time, examining the entire city and assessing what is going on throughout the area."
In addition to the battered buildings and other structures that appear in the satellite images, debris fields and craters also indicate damage.
The destruction has not been uniform, the AAAS team reported. Some areas have been heavily affected by the conflict, while others remain largely or totally unaffected. Of the 713 incidents of destruction observed during the study period, only six took place in districts reported to be under the control of forces loyal to the Syrian government. The rest were in areas under rebel control, under Kurdish control — whose authority was actively being contested — or for which control was unknown.
Located at the crossroads of trade routes that date back to the second millennium B.C., Aleppo contains many ancient structures of historical and cultural significance. The report documents damage to at least ten multi-story buildings as well as to mosques and cemeteries in the Ancient City. It also corroborates previous reports of damage to two important historical sites, the Umayyad Mosque and the Souq al-Madina.
The results also show an increase in military equipment, including artillery, tanks and aircraft in the affected areas. A number of military helicopters, for example, were observed on the tarmac at the Aleppo International Airport. Their numbers and positions changed frequently, suggesting regular use.
"Though other interpretations may be possible, this striking dichotomy in damage, in conjunction with direct observations of military activity, is consistent with reports that government forces have been using aircraft, missiles, and long-range artillery to bombard rebel-held areas," the report stated.
The creation of roadblocks to control movement within the city has also ramped up in the past year, as documented in the report. These appear to be mostly trucks or buses placed across strategic intersections, but others take the form of earthen barricades or deep trenches.
"It's interesting to see that the roadblocks are all across the city. One might think these would be more prevalent in rebel-held areas – perhaps as defensive positions – but in fact, it appears that the highest concentrations occur where regime forces are reported to be in control," said Jonathan Drake, an imagery analyst for the Project.
The AAAS analysis covered 182 square kilometers of Aleppo and surrounding regions. It was based on nine satellite images captured over a ten-month period by DigitalGlobe Inc.'s Quickbird-2, Ikonos-2, and Geoeye-1 satellites, as well as by Astrium's Pleiades satellite. A previous AAAS report of the same area, based on two images captured in August 2012, appeared to reveal the deployment of heavy armored vehicles in civilian neighborhoods as well as 117 instances of damage to buildings and infrastructure.
AAAS emphasized that its image analysis was occasionally limited by the density of buildings in Aleppo and the shadows they cast, as well as the viewing angle of the satellites at certain times. "Despite these challenges, it was possible to observe many signs of the conflict throughout the study area," the report stated.
The AAAS Geospatial Technologies and Human Rights Project, part of the association's Scientific Responsibility, Human Rights and Law Program, has previously provided objective image analysis to help explain events in Afghanistan, Nigeria, South Ossetia, Turkmenistan, Zimbabwe and many other regions. Geospatial technologies include remote sensing, geographic information systems and Global Positioning Systems that allow for mapping and analysis of multiple layers of geo-referenced data.
The Project was recently awarded a $119,474 grant from the United States Institute of Peace (USIP) that will enable AAAS to analyze cross-border conflicts using satellite imagery and to identify trends for the future use of this technology as a means of conflict early-warning prediction and prevention.
On 25 July, the United Nations announced that the civil war in Syria had taken more than 100,000 lives since it began in 2011. The United States is providing nearly $510 million in humanitarian aid in response to the Syrian crisis and Congress has recently approved a proposal by President Obama to begin providing military support to the Syrian rebels. The United Nations plans to send inspectors to Syria to investigate three reports of chemical weapons use.
INFORMATION:
The American Association for the Advancement of Science (AAAS) is the world's largest general scientific society, and publisher of the journal, Science as well as Science Translational Medicine and Science Signaling. AAAS was founded in 1848, and includes 261 affiliated societies and academies of science, serving 10 million individuals. Science has the largest paid circulation of any peer-reviewed general science journal in the world, with an estimated total readership of 1 million. The non-profit AAAS is open to all and fulfills its mission to "advance science and serve society" through initiatives in science policy, international programs, science education, and more. For the latest research news, log onto EurekAlert!, http://www.eurekalert.org, the premier science-news Web site, a service of AAAS.
AAAS report shows steady escalation of destruction in Aleppo
2013-08-07
ELSE PRESS RELEASES FROM THIS DATE:
The team of proteins that could have implications for the fight against cancer
2013-08-07
Researchers at Warwick Medical School have identified the key role played by a team of proteins in the process of mitosis. Working out how to control them may give scientists a way to destroy cancerous cells.
The study, led by Professor Steve Royle and published in The Journal of Cell Biology, highlights the role of a newly identified team of proteins, TACC3-ch-TOG-clathrin, in forming inter-microtubule bridges that stabilise the kinetochore fibres (K-fibres) used in mitosis.
When a cell divides, it produces a mitotic spindle which then makes sure that the chromosomes ...
Brain activation when processing Chinese hand-radicals
2013-08-07
A number of studies in which patients with lesions to frontal pre-motor areas are included have identified deficits in action comprehension. In addition, imaging studies have revealed the activation of brain areas associated with perception or action during tasks involving reading of words with related semantic meaning. For example, the mere passive reading of action verbs such as kick, pick and lick has been found to activate areas of the sensory-motor cortex associated with the legs, hands and face, respectively. To investigate the semantic processing of Chinese radicals ...
Mechanism underlying cisplatin-induced ototoxicity
2013-08-07
Studies have shown that calpain participates in gentamicin-, neomycin- and kanamycin-induced inner ear cell apoptosis. Cisplatin has been shown to be an anticancer drug. However, cisplatin can lead to severe ototoxicity, induce cochlear cell apoptosis, and result in hearing decrease or loss, which limits the application of cisplatin in a clinical setting to a certain degree. A recent study by Liang Chang and colleagues from Jinzhou Central Hospital established a BALB/c mouse model of cisplatin-induced ototoxicity to detect the susceptibility to cisplatin-induced ototoxicity. ...
Caffeine 'traffic light': Do you want to know how much caffeine is in your drink?
2013-08-07
A team of researchers led by Prof. Young-Tae Chang from National University of Singapore and Prof. Yoon-Kyoung Cho from Ulsan National Institute of Science and Technology (UNIST), Korea, developed a fluorescent caffeine detector and a detection kit that lights up like a traffic light when caffeine is present in various drinks and solutions.
The research work was published in Scientific Reports (Nature Publishing Group) on July 23, 2013.
Caffeine drinks are ubiquitous and it would be unimaginable for many of us to go a day without caffeine. But certainly one begins to ...
Diamonds are a laser scientist's new best friend
2013-08-07
Once a James Bond fantasy, diamond-based lasers are now becoming a reality.
Ground-breaking research is harnessing the unique properties of diamonds to develop a new generation of lasers that could lead to many benefits, from better treatment of skin complaints and diabetes-related eye conditions to improved pollution monitoring and aeronautical engineering.
A University of Strathclyde team has developed a new type of high-performance, ultra-versatile Raman laser* that harnesses diamonds to produce light beams with more power and a wider range of colours than current ...
Trust thy neighbor
2013-08-07
Increases in population size may lead to a breakdown in social trust, according to Jordan Smith from North Carolina State University in the US. As local populations grow, local elected officials and national news media become less trusted, compared with friends and family, local churches and civic institutions. This 'trust deficit' has implications for long-term environmental and community planning. Smith's study is published online in Springer's journal Human Ecology.
Smith studied three southern Appalachian mining communities during a period of change, amid growing ...
Novel beams made of twisted atoms
2013-08-07
Physicists have, for the first time, now built a theoretical construct of beams made of twisted atoms. These findings by Armen Hayrapetyan and colleagues at Ruprecht-Karls-University Heidelberg in Germany are about to be published in EPJ D. These so-called atomic Bessel beams can, in principle, have potential applications in quantum communication as well as in atomic and nuclear processes.
The concept for twisted atom beams stems from a similar approach with twisted photon beams, which are currently used as optical tweezers, for instance. It was later extended to twisted ...
Engineers gain new insight into turbulence that could lead to significant global energy savings
2013-08-07
Scientists have developed a new understanding of how turbulence works, which could help to optimise vehicle performance and save billions in global energy costs.
Dr Ati Sharma, a senior lecturer in aerodynamics and flight mechanics at the University of Southampton, has been working in collaboration with Beverley McKeon, professor of aeronautics and associate director of the Graduate Aerospace Laboratories at the California Institute of Technology (Caltech) to build models of turbulent flow.
Recently, they developed a new and improved way of predicting the composition ...
Quasar observed in 6 separate light reflections
2013-08-07
Quasars are active black holes -- primarily from the early universe. Using a special method where you observe light that has been bent by gravity on its way through the universe, a group of physics students from the Niels Bohr Institute have observed a quasar whose light has been deflected and reflected in six separate images. This is the first time a quasar has been observed with so many light reflections. The results are published in the scientific journal, Astrophysical Journal.
INFORMATION:
Article in Astrophysical Journal: http://stacks.iop.org/0004-637X/773/146
For ...
Self-healing solar cells 'channel' natural processes
2013-08-07
To understand how solar cells heal themselves, look no further than the nearest tree leaf or the back of your hand.
The "branching" vascular channels that circulate life-sustaining nutrients throughout leaves and hands serve as the inspiration for solar cells that can restore themselves efficiently and inexpensively.
In a new paper, North Carolina State University researchers Orlin Velev and Hyung-Jun Koo show that creating solar cell devices with channels that mimic organic vascular systems can effectively reinvigorate solar cells whose performance ...