Solar Flare Prediction
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Solar Flare Prediction
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Author : C. Sawyer
language : en
Publisher:
Release Date : 1986
Solar Flare Prediction written by C. Sawyer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Science categories.
This study looked at observational and theoretical studies of flare physics, at quests for flare precursors, and at mathematical models for combining masses of predictive information. We also looked at the worldwide effort to gather and share timely data and combine it with knowledge and experience to forecast solar flares and their effects. Topics include: Long-lived, large-scale magnetic and velocity fields; Magnetic-energy buildup in an active region; Flare initiation; Flare precursors -- Filament activation, Preflare brightening, Magnetic shear, and Emerging and cancelling magnetic flux; Quantitative prediction; Operational solar flare prediction; Forecast evaluation.
Solar Flare Prediction
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Author : Sawyer C.
language : en
Publisher:
Release Date :
Solar Flare Prediction written by Sawyer C. and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
The Influence Of Radio Brightness Temperature On Solar Flare Prediction
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Author : Alfred E. Reilly
language : en
Publisher:
Release Date : 1967
The Influence Of Radio Brightness Temperature On Solar Flare Prediction written by Alfred E. Reilly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Blackbody radiation categories.
An objective technique based on two measured parameters has been developed to determine the probability of occurrence of a solar flare near a sunspot group. The parameters utilized were the size of each sunspot group and the magnitude of an associated radio brightness temperature. Flare, sunspot, and radio data measured daily during the period from April 1962 through October 1966 were used in the study. These data were associated objectively and analyzed statistically. The size of a sunspot group is a significant predictor in itself. This analysis shows that consideration of radio brightness temperature significantly improves the accuracy of solar flare prediction beyond the accuracy that can be achieved by considering only the size of the sunspot group. (Author).
An Objective Baseline For Flare Prediction
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Author : Ronald T. Podsiadlo
language : en
Publisher:
Release Date : 1972
An Objective Baseline For Flare Prediction written by Ronald T. Podsiadlo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Correlation (Statistics) categories.
The relationship between various measurable solar parameters and solar-flare occurrence is examined utilizing a comprehensive solar-geophysical data base containing a variety of objectively-correlated solar measurements. The sample covers the period from January 1955 through February 1968 and includes such parameters as solar flares, sunspots, magnetic fields of sunspots, calcium plages and 9.1 cm radio brightness temperatures. A statistical analysis was performed to determine the parameters most useful for the prediction of solar flares 24 hours in advance. Persistence was identified as the single most important flare predictor, with sunspot magnetic classification, 9.1 cm radio brightness temperature, plage brightness and sunspot area also selected as useful predictors. Objective flare probability prediction equations were developed that incorporate all useful predictors simultaneously. (Author).
Long Range Solar Flare Prediction
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Author : Jane B. Blizard
language : en
Publisher:
Release Date : 1968
Long Range Solar Flare Prediction written by Jane B. Blizard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Solar flares categories.
Development Refinement And Testing Of A Short Term Solar Flare Prediction Algorithm
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2019
Development Refinement And Testing Of A Short Term Solar Flare Prediction Algorithm written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Science categories.
Progress toward performance of the tasks and accomplishing the goals set forth in the two year Research Grant included primarily analysis of digital data sets and determination of methodology associated with the analysis of the very large, unique, and complex collection of digital solar magnetic field data. The treatment of each magnetogram as a unique set of data requiring special treatment was found to be necessary. It is determined that a person familiar with the data, the analysis system, and logical, coherent outcome of the analysis must conduct each analysis, and interact with the analysis program(s) significantly sometimes many iterations for successful calibration and analysis of the data set. With this interaction, the data sets yield valuable, coherent analyses. During this period, it was also decided that only data sets taken inside heliographic longitudes (Central Meridian Distance) East and West 30 degrees (within 30 degrees of the Central Meridian of the Sun). If the total data set is then found to be numerically inadequate for the final analysis, 30 - 45 degrees Central Meridian Distance data will then be analyzed. The Optical Data storage system (MSFC observatory) was found appropriate for use both in intermediate storage of the data (preliminary to analysis), and for storage of the analyzed data sets for later parametric extraction. Smith, Jesse B., Jr. NASA-CR-194726, NAS 1.26:194726 NAG8-888...
Enhanced Prediction Of Solar Flares
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Author : Omar W. Ahmed (Ed. )
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-10
Enhanced Prediction Of Solar Flares written by Omar W. Ahmed (Ed. ) and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10 with categories.
Space weather has become an international issue due to the catastrophic impact it can have on modern societies. Solar flares are one of the major solar activities that drive space weather. Thus, research is required to yield a better understanding of flare occurrence and enable an accurate flare forecasting. This work introduces novel technologies developed by combining advances in statistical physics, image processing, machine learning, and feature selection algorithms, with advances in solar physics in order to extract valuable knowledge from historical solar data, related to active regions and flares. The aim of this work is to achieve the followings: 1) The design of a new measurement, inspired by the physical Ising model, to estimate the magnetic complexity in active regions and an investigation of this measurement in relation to flares. 2) Determination of the flare prediction capability of active region properties generated by the new active region detection system SMART to enable the design of a new flare prediction system. 3) Determination of the active region properties that are most related to flare occurrence in order to enhance understanding flare occurrence.
Long Range Solar Flare Prediction
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Author :
language : en
Publisher:
Release Date : 1969
Long Range Solar Flare Prediction written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Solar Terrestrial Environmental Prediction
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Author : Kanya Kusano
language : en
Publisher: Springer Nature
Release Date : 2023-01-31
Solar Terrestrial Environmental Prediction written by Kanya Kusano and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-31 with Science categories.
Powerful solar explosions, such as flares and coronal mass ejections, greatly disturb the electromagnetic environment around the Earth and the atmosphere. They may even impact various social systems—communications, positioning, electric power supply, aviation and activities in space. Such variations in the space environment, which can influence human activities, are called “space weather.” The space weather disaster caused by a solar explosion is a potential risk in modern society. To reduce and mitigate space weather impacts, it is essential to understand the structure and dynamics of the solar–terrestrial environment and to predict the variations. This book comprehensively describes space weather, from the basics of related sciences to the possible social impacts. It was compiled based on a national research project on solar–terrestrial environment prediction conducted in Japan recently. It consists of four parts: the linkage between space weather and society; the magnetosphere of the Earth and space weather prediction; solar storms and space weather prediction; and long-term prediction of solar cycle activity and climate impacts. Each chapter covers the basics and applications of each area, which helps readers gain a broad understanding of the subject matter throughout the book. In addition, readers are able to select and read the topics they are most interested in. It is especially valuable for undergraduate and graduate students and young researchers studying space weather and related topics, and is further helpful for experts in various industries related to space weather disasters. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). The present version has been revised technically and linguistically by the authors in collaboration with a professional translator.
Solar Terrestrial Predictions Proceedings Solar Activity Predictions
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Author : Richard Frank Donnelly
language : en
Publisher:
Release Date : 1979
Solar Terrestrial Predictions Proceedings Solar Activity Predictions written by Richard Frank Donnelly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Ionospheric forecasting categories.