Forestry timber typing. Tanana demonstration project, Alaska ASVT

The feasibility of using LANDSAT digital data in conjunction with topographic data to delineate commercial forests by stand size and crown closure in the Tanana River basin of Alaska was tested. A modified clustering approach using two LANDSAT dates to generate an initial forest type classification was then refined with topographic data. To further demonstrate the ability of remotely sensed data in a fire protection planning framework, the timber type data were subsequently integrated with terrain information to generate a fire hazard map of the study area. This map provides valuable assistance in initial attack planning, determining equipment accessibility, and fire growth modeling. The resulting data sets were incorporated into the Alaska Department of Natural Resources geographic information system for subsequent utilization

Analysis of the Tanana River Basin using LANDSAT data

Digital image classification techniques were used to classify land cover/resource information in the Tanana River Basin of Alaska. Portions of four scenes of LANDSAT digital data were analyzed using computer systems at Ames Research Center in an unsupervised approach to derive cluster statistics. The spectral classes were identified using the IDIMS display and color infrared photography. Classification errors were corrected using stratification procedures. The classification scheme resulted in the following eleven categories; sedimented/shallow water, clear/deep water, coniferous forest, mixed forest, deciduous forest, shrub and grass, bog, alpine tundra, barrens, snow and ice, and cultural features. Color coded maps and acreage summaries of the major land cover categories were generated for selected USGS quadrangles (1:250,000) which lie within the drainage basin. The project was completed within six months

Remote sensing and the disaster management cycle

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Origins and development of SWIFT, 1973–2009

Research in this article traces the origins of a not-for-profit financial institution called the Society for Worldwide Interbank Financial Telecommunication (SWIFT). SWIFT is a core part of the financial services infrastructure and is widely regarded as the most secure trusted third party network in the world, serving 200 countries with over 8000 users. The analysis focuses on how the design and current state of SWIFT was influenced by its historical origins. In order to ensure widespread compatibility in a sector experiencing asynchronous technological development, legacy Telex specifications had to be accommodated in SWIFT's design. Over time, what began as a closed ‘society’ founded to reduce errors and increase efficiency in interbank payments grew into an industry cooperative supporting an enthusiastic community of practice and transformed into an unexpected network phenomenon. SWIFT achieved such success that it has been accused of being an installed base stifling innovation. In recent years, SWIFT has had to institute new categories of membership in an effort to counter concerns about its bank-dominated governance and it continues to search for ways to meet the requirements of key constituents in the financial supply chain