Geodateninfrastrukturen in der Praxis

Geodateninfrastrukturen sollen den Zugang zu und die Nutzung von Geoinformationen besser und effektiver gestalten und dadurch den einen Markt für Geoinformationen etablieren, in dem sowohl Massendaten, wie auch spezielle Informationen im Sinne problemspezifischer Auskünfte nachgefragt und im Idealfall auch abgerechnet werden k?nnen. Auf verschiedenen Organisationsstufen und in unterschiedlichen fachlichen Zusammenh?ngen werden zur Zeit internetbasierte Geodateninfrastrukturen (GDI) aufgebaut. Sie orientieren sich an den internationalen Standards des Open GIS Consortium (OGC) und der Internationalen Standardisierungsorganisation (ISO). Eine wichtige Voraussetzung für das Gelingen der Initiativen ist, da? sie nicht nur Top-Down von staatlichen Instanzen eingerichtet und betrieben werden, sondern auch Elemente kooperierender Bottom-Up-Entwicklung enthalten und vor allem alle potentiellen Nutzer einer GDI, von Datenanbietern über -veredlern und Software-Herstellern bis hin zu Endkunden, einbeziehen. Der Beitrag stellt den aktuellen Stand der Entwicklung und wichtige aktuelle Beispiele in der Praxis dar.     

From 'neighbourhood watch group' to community?: The case of ASEAN institutions and the pooling of sovereignty

The term 'intergovernmental neighbourhood watch group' reflects best the character of ASEAN as a grouping whose members are only loosely associated, and whose preferences for cooperation are based on the 'ASEAN way' of informality, personalised rather than institutionalised relations, and distrust of definite and legally binding commitments. This paper argues that central ASEAN mechanisms and institutions are moulded in the traditional ASEAN way and are therefore not capable of effectively promoting ASEAN's objectives of deeper economic and political integration. Most recent developments in ASEAN suggest that political disunity and nation-centred navel-gazing continue to restrict rather than enhance ASEAN's capability to pool sovereignty and to engage in institutionalised community-building. This trend reinforces the legacy of an ASEAN identity based on the delimiting rather than integrative principles of the 'ASEAN way' and leaves ASEAN with the problem of how to integrate without actually integrating.     

Stories about building history told by wooden elements – case studies from Eastern Austria

The intention of this article is to show the benefit of an interdisciplinary approach within the various disciplines of building research (architectural archeology, art history, archive research, dendrochronology, etc.).

The exact determination of the age of historical timber is undoubtedly the most important contribution of dendrochronology to building research. The significance of dendrochronological dates is discussed in detail—problems of reuse, repair, drying time, and differences between felling and building dates are demonstrated. Several case studies in Eastern Austria showed a difference of two to four years between felling and building.

To answer questions of where the timber came from, dendroprovenancing was introduced to Eastern Austria. First results showed that it will be possible to differentiate the origin of timber between Eastern Austria and regions where rafts started towards Vienna, via the river Danube. The results showed that it is important to combine building archaeology and archival analyses with the dendrochronological results.     

SITUATED KNOWLEDGE SPILLOVERS: A CASE STUDY OF INDUSTRY SPECIFICITY IN URBAN KNOWLEDGE SOURCING

Theorizing within the umbrella of evolutionary economic geography (EEG) has improved the understanding of how inter‐firm relatedness conditions knowledge spillovers, and how this affects the long‐term evolution of regions. Still, there are shortcomings in this approach associated with a quantitative and generic methodology, a static notion of relatedness, and a weakly developed policy and institutional perspective. In particular, there is a need for a better understanding of the mechanisms through which relatedness is developed and how policy affects existing and emerging relatedness. Certain mechanisms for knowledge transfer have been suggested, such as labour mobility, firm diversification, spin‐offs and social networks. But do the same mechanisms apply to all industries and in all territories, or are there specific mechanisms of knowledge sourcing at work in different contexts? To shed light on these questions, the article reports on a comparative case study of two knowledge‐intensive industries (life science and publishing) located in the Oslo metropolitan region. Based on a case study, the article suggests that both industries source knowledge through similar types of channels. However, despite similarities in how knowledge is accessed and absorbed in this diverse urban context, knowledge sourcing also seems to be conditioned by industry‐specific dynamics, policies and institutions.     

Performance tests using the Lexsyg luminescence reader

This study presents test measurements on a Lexsyg luminescence reader, acquired by the Giessen luminescence group. The reader is of the type Standard, hence designed for routine determination of palaeodoses using quartz or K-feldspars. The tests include measurements of the stimulation powers, preheat temperatures, OSL- and TL-curves, as well as dose recovery tests and calibration measurements using highly sensitised calibration quartz. A comparison of D _e values determined using a Lexsyg reader with single grain D _e-values, which have been previously obtained on a Risø reader, is also presented. The results imply that the Lexsyg reader is a highly reliable measurement device with high reproducibility, yielding instrumental uncertainties of around 0.3%.     

From pedologic indications to archaeological reconstruction: deciphering land use in the Islamic period in the Baida district (north-western Sicily)

The aim of this work was to detect imprints on soil properties from former Islamic land use (9th to 11th century) using a multi-method, soil-chemical approach. Four soil profiles (with buried horizons) found in the vicinities of former Islamic settlements in Sicily were analysed for phosphorus (total, organic and inorganic), nitrogen (total, NO₃⁻ and NH₄⁺), carbon compounds (δ¹³C, lipids, polycyclic aromatic hydrocarbons (PAH) and functional groups), physical and chemical C-fractions and the state of soil weathering. Two soil profiles contained ceramic sherds from the Islamic period. Inorganic nitrogen forms, phosphorous and the PAH content indicated strong impacts from traditional agriculture and/or burning. Radiocarbon dating of soil organic carbon (SOC) fractions from buried horizons showed that distinct changes must have occurred during the Islamic epoch. The isotopic composition of SOC indicated that land use was probably different in earlier times. C₄ plant cultivation was expected but surprisingly lipid analyses did not confirm this. A high amount of aliphates and low C/N ratio indicated a good, long-term SOC stabilisation under the native conditions combined with Islamic land use. The irrigation of the soils probably increased the production of weakly-crystalline Fe forms that helped to stabilise SOC.