Avalanche Weather Forecasting at the Northwest Avalanche Center, Seattle, Washington, U.S.A.
نویسندگان
چکیده
منابع مشابه
Charge exchange avalanche at the cometopause
A sharp (<104 km thick) transition from a solar wind proton dominated flow to a plasma population primarily consisting of relatively cold cometary heavy ions has been observed at a cometocentric distance of about 1.6x105 km by the VEGA and GIOTTO missions. This boundary (the cometopause) was thought to be related to charge transfer processes, but its location and thickness are inconsistent with...
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ASTRACT: Snow avalanches pose serious threat to Indian troops deployed in snow-bound areas of western Himalaya during winter months. The most viable way to mitigate avalanche threat in these areas is to precisely predict the time and place of their occurrences. Since, the factors involved in the formation of an avalanche are too many and underlying physical processes are quite complex, no predi...
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This paper explores the use of the Support Vector Machine (SVM) as a data exploration tool and a predictive engine for spatio-temporal forecasting of snow avalanches. Based on the historical observations of avalanche activity, meteorological conditions and snowpack observations in the field, an SVM is used to build a data-driven spatio-temporal forecast for the local mountain region. It incorpo...
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This paper presents two avalanche forecasting applications NXD2000 and NXD-REG which were developed at the Swiss Federal Institute for Snow and Avalanche Research (SLF). Even both are based on the nearest neighbour method they are targeted to different scales. NXD2000 is used to forecast avalanches on a local scale. It is operated by avalanche forecasters responsible for snow safety at snow spo...
متن کاملAvalanche polynomials
The avalanche polynomial on a graph, introduced in [5], capture the distribution of avalanches in the abelian sandpile model. Studied on trees, this polynomial could be defined by simply considering the size of the subtrees of the original tree. In this article, we study some properties of this polynomial on plane trees. In [5], they show that two different trees could have the same avalanche p...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 1990
ISSN: 0022-1430,1727-5652
DOI: 10.3189/s0022143000005554