Suchergebnisse

The historical and technological developments of powered flight and aerial photography have early connections in the Maritimes. Following the Great War (1914-18), a series of pioneering survey missions were initiated by the Canada Air Board in the civilian domain. From a science perspective, the air photos offer a unique opportunity for the detection of environmental change at an unusual centennial time scale. The missions of the early 1920s initially relied on military surplus seaplanes and innovative camera equipment that yielded several thousand high-resolution vertical air photos. This paper is focussed on the scope and outcome of the first experiments carried out over Nova Scotia and New Brunswick between 1921 and 1925, prior to more systematic use for topographic mapping during the remainder of that decade. The research is based on archival records and partial reconstruction of the digitized air photos into image mosaics. Photo interpretation and comparison with recent high-resolution satellite imagery offer insights concerning land use and land cover changes, coastal dynamics, and transformation of urban, rural and industrial landscapes. Experience todate with these early air photos and mosaics of the Maritimes holds promise for examining similar aerial survey missions in other parts of Canada.

Autoren verschiedener Disziplinen untersuchen in diesem Sammelband, wie mit den epistemologischen und methodologischen Dimensionen des Mangels oder Verlusts von Gewissheit für Zeichen und Zeugnisse der interpretierenden Wissenschaften umgegangen wird. Im Fokus stehen Formen des Skeptizismus und Theorien der Wahrscheinlichkeit im Zeitraum von 1550 bis 1850, deren Analyse es erlaubt, Konzeptualisierungen "unsicheren" oder "schwachen" Wissens zu erschließen. Das Buch nimmt damit Impulse aus der Probabilismus-Forschung und der Skeptizismus-Forschung auf. Durch die gründliche Arbeit mit historischen Quellen wird die Forschung über unsicheres Wissen auf eine breite Basis gestellt. Dabei werden auch die "großen Thesen" angloamerikanischer Provenienz am historischen Material überprüft.

Front Matter -- The Future of Ocean Governance and Capacity Development /Dirk Werle , Paul R. Boudreau , Mary R. Brooks , Michael J.A. Butler , Anthony Charles , Scott Coffen-Smout , David Griffiths , Ian McAllister , L.McConnell Moira , Ian Porter , Susan J. Rolston and Peter G. Wells -- Perspectives on Ocean Governance -- Capacity Development for Responsible Ocean Governance -- Law of the Sea and Principled Ocean Governance -- Ocean Sciences -- Integrated Coastal and Ocean Management -- Fisheries and Aquaculture -- Ocean Energy -- Maritime Safety and Security -- Maritime Transportation -- Communication and Negotiation -- Looking Ahead: Ocean Governance Challenges in the Twenty-First Century /Dirk Werle , Paul R. Boudreau , Mary R. Brooks , Michael J.A. Butler , Anthony Charles , Scott Coffen-Smout , David Griffiths , Ian McAllister , Moira L. McConnell , Ian Porter , Susan J. Rolston and Peter G. Wells.