Ghana airborne geophysics project in the Volta and Keta Basin : BGS final report

This report describes the work undertaken by BGS between November 2006 and March 2009 in collaboration with Fugro Airborne Surveys Pty Ltd on an airborne geophysical survey and ground reconnaissance mapping of the Volta River and Keta Basins, Ghana. The project was supported by the EU as part of the Mining Sector Support Programme, Project Number 8ACP GH 027/13. The initial contract duration was three years, but this was extended by five months to account for acquisition of gravity data by another project. Some parts of Ghana have been airborne surveyed as part of the Mining Sector Development and Environmental Project, co-funded by the World Bank and the Nordic Development Fund, but no work was carried out on the Volta River and Keta basins, which together form a major portion of the Ghanaian territory. The approximate areas covered by the surveys are estimated at 98,000 km² for the satellite imagery and the airborne geophysics, except for the Time Domain Electromagnetic (TDEM) survey which was limited to 60,000 km². The main beneficiary of this project is the Geological Survey Department, GSD. The work enhanced its geological infrastructure and its personnel received hands-on training on modern geological mapping technology. Indirect beneficiaries were the mining and exploration companies that can follow up the reconnaissance work with detailed exploration work. The project was conducted in five phases, and this document reports on the BGS input to Phase 1, 4 and 5, with no inputs required in Phases 2 and 3: • Phase1: geological outline through Radar and optical satellite imageries. • Phase 2: airborne geophysical survey over the two basins for magnetics and Gamma Ray spectrometry (Fugro survey). • Phase 3: airborne electromagnetic and magnetic geophysical survey of specific areas, following the completion and interpretation of phase 2, using fixed wing time domain technology (Fugro survey). • Phase 4: interpretation of the combined geology and geophysics. • Phase 5: production of factual and interpretation maps. The full list of BGS products is outlined in Table 1 below, while Jordan et al. (2006) describe the products delivered on schedule in Phase 1

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Architecture & Allied Art

Worn Down and Worn Out

Exposure to early adversity, particularly dire poverty, can powerfully shape the life course of a young person. As a city and region, we continually choose whether we’ll commit ourselves to an alternative course

Possible Molecular Origins of the Unidentified Infrared Emission Features in Planetary Nebulae

Researchers are currently unsure which molecules are responsible for spectral features known as the unidentified infrared emission (UIE) bands observed in planetary nebulae. Infrared emission spectroscopy can be used to identify molecules by assigning spectral peaks to specific molecular vibrations. Scientists have speculated that UIE bands come from either polycyclic aromatic hydrocarbons or mixed aromatic/aliphatic organic nanoparticles with heteroatom substitutions. Starting from these proposals, we have systematically calculated the theoretical infrared spectra of various candidate molecules using density functional theory and compared them to the experimental UIE spectra. The calculated infrared spectra of n-butyl linked nitrogen-substituted pyrene and tetracene systems contain most of the UIE features found in planetary nebulae NGC 7027 and IRAS 21282 + 5050. We plan to carry out calculations with larger nitrogen-substituted tetracene and pyrene polymers in an attempt to match the UIE features more closely. These findings are important for understanding the formation and evolution of planetary nebulae. Keywords: UIE features, Infrared, PAH, MAON, Spectroscopy, Astrochemistry, Planetary Nebulae, Computationa

Bird Hazard Mitigation Training For General Aviation Pilots - A Prospective Research Study

General aviation industry 446,000 aircraft worldwide 211,000 in the U.S. Supports $219 billion in total economic output and 1.1 million jobs in the U.S Flies approximately 25 million flight hours (U.S.) Flies to more than 5,000 public airports Primary training ground for most commercial airline pilot

A Safety Management Model for FAR 141 Approved Flight Schools

The Safety Management Annex (Annex 19), which became applicable in November 2013, consolidates safety management provisions previously contained in six other International Civil Aviation Organization (ICAO) Annexes, and will serve as a resource for overarching state safety management responsibilities. Through Annex 19, ICAO has required that its member states develop and implement safety management systems (SMS) to improve safety. This mandate includes an approved training organization that is exposed to aviation safety risks. In 2015, the FAA published AC 120-92B to provide guidance material for certificate holders operating under FAR 121, to implement and maintain an SMS. This AC may also be used by other aviation service providers interested in voluntarily developing an SMS based on the requirements in 14 Code of Federal Regulations Part 5 (14 CFR Part 5). There are numerous reasons for SMS implementation going beyond simple compliance with international or national guidelines. The most important of these is safety enhancement, because it is an intrinsic requirement of the aviation system. There is a vast body of literature regarding SMS, but none of it suggests a model to a specific service provider. The implementation of an SMS model tailored to FAR 141 approved flight schools has the strong potential to yield safety enhancement, through a structured management system to control risks in operation. The purpose of this study is to develop a safety management model for FAR 141 operators, based on the ICAO SMS outlined in Annex 19, and current FAA requirements and safety protocols, as outlined in AC 120-92B

General Aviation Pilots\u27 Strategies to Mitigate Bird Strikes

To date, a few operational efforts have been launched by the FAA to mitigate wildlife strikes away from the airport jurisdiction, and those do not include actions by general aviation (GA) pilots. This presentation explores the safety training of GA pilots using aeronautical decision-making concepts as a strategy to mitigate the risk of mishaps due to birds. Previous research, the FAA Serial Report #22, and final reports of GA aircraft accidents due to birds will be covered