منابع مشابه
Forecasting Space Weather
Forecasting space weather events presents the ultimate challenge to a space physics model. Not only should physical constraints be satisfied, but also practical issues such as timeliness, accuracy, and reliability must be adequately addressed. To address these needs, modern space weather forecasters and users rely on a great variety of space weather models, ranging from simple regressions and e...
متن کاملThe science of space weather.
The basic physics underpinning space weather is reviewed, beginning with a brief overview of the main causes of variability in the near-Earth space environment. Although many plasma phenomena contribute to space weather, one of the most important is magnetic reconnection, and recent cutting edge research in this field is reviewed. We then place this research in context by discussing a number of...
متن کاملAnalysis of Weather Generators: Extreme Events
Stochastic weather generators (WGs) are often used to simulate synthetic weather time series based on observed statistical properties in a particular location. Most studies evaluate WG skill based on average properties. Our objective is to assess how the WGs performs in simulating extremes, especially high precipitation amounts. We analyzed 13 different WGs using two parallel approaches: extrem...
متن کاملImproved forecasts of extreme weather events by future space borne Doppler wind lidar
Introduction An important goal in operational weather forecasting is to reduce the number of forecast failures, in particular those with large socio economic impact. Forecast failures of high-impact weather are often due to lack of observations over data sparse areas, such as the southern hemisphere, Tropics and Northern hemisphere oceans, over a prolonged period prior to the extreme event. Int...
متن کاملUsing neutron monitor network data to improve the detection of space weather events
Neutron and muon monitor networks can be used as single multidirectional spectrograph, thereby improving the detection of Ground Level Enhancements (GLEs) and of signatures from approaching interplanetary disturbances (Usoskin et al., 1997; Mavromichalaki et al., 2004). The real-time analysis of such network data, however, is often hampered by a number of practical difficulties such as data gap...
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ژورنال
عنوان ژورنال: Space Weather
سال: 2007
ISSN: 1542-7390
DOI: 10.1029/2007sw000342