The Influence Of Radio Brightness Temperature On Solar Flare Prediction

Author : Alfred E. Reilly
Publisher : Unknown
Page : 20 pages
File Size : 41,7 Mb
Release : 1967
Category : Blackbody radiation
ISBN : UOM:39015095128834

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The Influence of Radio Brightness Temperature on Solar Flare Prediction by Alfred E. Reilly Pdf

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).

Author : Ronald T. Podsiadlo
Publisher : Unknown
Page : 20 pages
File Size : 49,5 Mb
Release : 1972
Category : Correlation (Statistics)
ISBN : UOM:39015095142702

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An Objective Baseline for Flare Prediction by Ronald T. Podsiadlo Pdf

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).

Author : Anonim
Publisher : Unknown
Page : 1460 pages
File Size : 43,9 Mb
Release : 1991
Category : Aeronautics
ISBN : UIUC:30112001077426

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Scientific and Technical Aerospace Reports by Anonim Pdf

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author : Anonim
Publisher : Unknown
Page : 94 pages
File Size : 41,9 Mb
Release : 1967
Category : Geophysics
ISBN : OSU:32435061432597

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Air Force Surveys in Geophysics by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 638 pages
File Size : 47,9 Mb
Release : 1978
Category : Artificial satellites
ISBN : UCR:31210023607862

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Effect of the Ionosphere on Space and Terrestrial Systems by Anonim Pdf

Author : Hans J. E. Fischer
Publisher : Unknown
Page : 44 pages
File Size : 52,8 Mb
Release : 1968
Category : Extraterrestrial radiation
ISBN : UOM:39015095130467

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A Compilation of Solar Radio Sweep-frequency Observations, 1955-1964 by Hans J. E. Fischer Pdf

The solar radio sweep-frequency observations and hours of patrol from five rad radio observatories for the period 1955 through 1964 have been compiled, edited, and put onto two magnetic tapes. One tape contains the hours of radio patrol from the observatories at Ann Arbor, Bigpine, Boulder, Sydney and Fort Davis. Another tape contains the sweep-frequency observations in the meter and dekameter wavelengths of the radio spectrum from these observatories. The sources, methods of reduction, and the format and content of the data on tape are described. Statistics related to various distributions of the radio spectral activity reported by each station are discussed and demonstrate an urgent need for standard policies in detecting, scaling, classifying, and reporting these data.

Author : Richard Frank Donnelly
Publisher : Unknown
Page : 528 pages
File Size : 46,9 Mb
Release : 1979
Category : Ionospheric forecasting
ISBN : UIUC:30112005438368

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Solar-terrestrial Predictions Proceedings: Solar activity predictions by Richard Frank Donnelly Pdf

Author : Hans J. E. Fischer
Publisher : Unknown
Page : 52 pages
File Size : 49,9 Mb
Release : 1969
Category : Computer programming
ISBN : UOM:39015095133206

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Constructing Solar Flare Events by Computer by Hans J. E. Fischer Pdf

A computer program has been developed which processes and groups individual observations of solar flares which describe the same feature. From each group of observations a consolidated description of the flare 'event' is produced. The report details the methods by which these groups are formed and the subsequent consolidated descriptions achieved. (Author).

Author : Ronald T. Podsiadlo
Publisher : Unknown
Page : 20 pages
File Size : 40,6 Mb
Release : 1967
Category : Astronomical observatories
ISBN : UOM:39015095130202

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A Comparison of Reported Solar Flare Occurrence Times and Flare Patrol Times, 1955-1964 by Ronald T. Podsiadlo Pdf

A flare event list that is consistent with flare patrol times is prerequisite to a reliable, unbiased estimate of flare occurrence per unit patrol time. A comparison of the flare occurrence times and flare patrol times reported by 52 solar observatories during the period of 1955 to 1964 discloses that 12.3 percent of the flare reports (Importance = or > 1) have no reported patrol coverage. Elimination of these 'unpatrolled' flare reports reduces the number of individual flare events in the data sample by 9.7 percent. This means that flare occurrence per unit patrol time computed from the raw flare and flare patrol data is overestimated by this same percentage. In addition to eliminating 'unpatrolled' flare reports, appropriate adjustments are made in the 'patrolled' flare data so as to make each observatory's reported flare times completely consistent with its reported patrol times.

Author : Alfred E. Reilly
Publisher : Unknown
Page : 24 pages
File Size : 43,8 Mb
Release : 1969
Category : Probabilities
ISBN : UOM:39015095132851

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Flare Occurrence Tomorrow as a Function of Area and Flariness of Sunspot Today by Alfred E. Reilly Pdf

An objective technique has been developed for estimating the probability of occurrence of solar flares in a particular sunspot group using both the size of the sunspot group and its 'flariness'. Tables are given which indicate the probability that at least one flare of importance two or greater will occur tomorrow, given the area and flariness of the sunspot group today. (Author).

Author : Richard Frank Donnelly
Publisher : Unknown
Page : 528 pages
File Size : 48,5 Mb
Release : 1979
Category : Cosmic physics
ISBN : MINN:30000010400798

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Solar activity reports by Richard Frank Donnelly Pdf

Author : Anonim
Publisher : Unknown
Page : 396 pages
File Size : 43,6 Mb
Release : 1969
Category : Environmental geology
ISBN : CHI:62486580

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Environmental Research Papers by Anonim Pdf

Author : Air Force Cambridge Research Laboratories (U.S.)
Publisher : Unknown
Page : 80 pages
File Size : 45,7 Mb
Release : 1968
Category : Atmosphere, Upper
ISBN : UOM:39015095132539

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Bibliography of AFCRL Publications from 1 October to 31 December 1967 by Air Force Cambridge Research Laboratories (U.S.) Pdf

Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 128 pages
File Size : 45,6 Mb
Release : 1968
Category : Government publications
ISBN : UCR:31210023919127

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Monthly Catalog of United States Government Publications by United States. Superintendent of Documents Pdf

February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 1504 pages
File Size : 49,9 Mb
Release : 1979
Category : United States
ISBN : STANFORD:36105019598296

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Monthly Catalog of United States Government Publications, Cumulative Index by United States. Superintendent of Documents Pdf