Weather satellite woes
نویسندگان
چکیده
منابع مشابه
Texture-Based Segmentation of Satellite Weather Imagery
Unsupervised segmentation of weather images into features that correspond to physical storms is a fundamental and difficult problem. Treating an infrared satellite image as a Markov random field, the Kolmogorov-Smirnov distance between the local distribution of spatial statistics and the global statistics of classified regions is used to segment the image using a relaxation algorithm. An outlie...
متن کاملSatellite Weather Information and Intelligent Transportation System
Photo courtesy of the California Department of Transportation On her way to pick up her daughter from King Magnet Elementary at Downtown Little Rock, Amy notices the dark clouds of a thunderstorm rapidly approaching. Meanwhile computers at a private meteorological service is using data from the National Weather Services and the Arkansas Department of Transportation to produce a highly specific ...
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IN THE NEWS FOCUS STORY “WEATHER forecasts slowly clearing up” (9 November, p. 734), R. Kerr nicely summarizes how the growing improvement in prediction is coming from a focus on “more computer power, the assimilation of radar observations, and more physically realistic models.” He emphasizes that better assimilation of satellite data is a key element of improved forecasting. Unfortunately, the...
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This is a reply to Timothy Williamson’s paper ‘Tennant’s Troubles’. It defends against Williamson’s objections the anti-realist’s knowability principle based on the author’s ‘local’ restriction strategy involving Cartesian propositions, set out in The Taming of the True. Williamson’s purported Fitchian reductio, involving the unknown number of books on his table, is analyzed in detail and shown...
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Tomm40 has created a stir in Alzheimer’s disease (AD) research with the recent proposal that variablelength polymorphisms of this gene, which lives near apolipoprotein E (ApoE) on chromosome 19, can help predict at what age a person may develop late-onset AD (LOAD) [1,2]. This finding came from analysis of several small cohorts in which ages of LOAD onset were determined retrospectively. Now, n...
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ژورنال
عنوان ژورنال: Nature
سال: 1991
ISSN: 0028-0836,1476-4687
DOI: 10.1038/352097a0