Local public environmental services in England are tackling environmental sustainability through the intelligent use of geographic information by cutting emissions, waste and fuel use. This also leads to cost reductions in delivering services.
The routine updating of municipal maps at 10-year intervals cannot keep pace with modern urban dynamics. The GeoSat project steps into this breach to demonstrate how city planners and managers can use remote sensing to develop new information, incorporate it into existing maps and apply the results across a range of municipal tasks.
The first images returned from NigeriaSat-2, Nigeria’s first high-resolution Earth observation satellite, demonstrate enhancements put into place by the Nigerian space agency. A selection of images from NigeriaSat-2 were presented at the 62nd International Astronautical Congress in Cape Town, South Africa.
Is urban remote sensing really useful to local planners? Does the research community understand which applications, scales and data are most relevant and sought after? These and other questions were addressed in a recent workshop organized by the Geography Department at the Arizona State University.
The rate of Chinese urbanization is one of the fastest on Earth. A project funded by the European Space Agency and the Ministry of Science and Technology of China under the Dragon II framework is developing tools to use European and Chinese Earth observation data for urban environmental monitoring in Jing-Jin-Ji, the Yangtze River Delta, and the Pearl River Delta.
Urban Metabolism is a conceptual framework for analyzing the flow of energy and materials within cities. This paper discusses evidence that satellite-observed nighttime lights can be used to map and monitor urban metabolism and review the observational requirements for designing an optimized satellite instrument.
If you do not think human activities can create or alter snowfall patterns, then consider the events of Jan. 19, 2011 in Dodge City, Kansas. The National Weather Service documented an unusual weather pattern that caused a very narrow band of snow downwind of Dodge City. The NWS website states that ÛÏthe atmosphere was cold and moist with low clouds and fog preceding the formation of the snow.
The proliferation of multistory residential buildings with high occupation densities in the cities of developing countries poses serious challenges to our ability to estimate populations, particularly in squatter settlements where conducting surveys may pose a safety risk to field workers. An innovative method applying both 2D and 3D information derived from digital elevation models obtained by orbital very high resolution images demonstrates that remotely sensed data can provide fast and fairly accurate results that can be updated continuously in the inter-census periods.
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