Download or read book Magnetic Disturbance Statistics from a Single Station Q Index Applied to an Actual OTH B Radar Situation written by B. S. Dandekar and published by . This book was released on 1979 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the systematic diurnal motion of the auroral oval, the Q values of magnetic activity derived from a single station are not directly usable to determine the expected degree of auroral activity. To remove the diurnal effects from a single station data base, which leads in daytime to an under-estimation of the Q index, an empirical set of detrending factors was determined for the Sodankyla Q data base. These factors show that the probability that a given level of magnetic activity will be exceeded for a given duration is underestimated by up to a factor of 2 in the least sensitive daytime sector. The detrended data base has been analyzed to determine the probability that a given Q value is exceeded for a selected duration. This analysis has been done for durations up to 12 hr separately for the night and daytime detrended data bases. The results are very similar and confirm that the detrending has been successfully accomplished. Finally the individual and cumulative probabilities that a given Q is exceeded for a selected duration (periods from 0.25 to 24 hr) have been established for the fully detrended data base. To interpret the results in their effect on the Over-the-Horizon Experimental Radar System, the distribution of probabilities has been modulated with the dynamics of the auroral oval by use of the Starkov equation (1969). This permits the assessments of the probability that a fixed location in the radar coverage area is under the auroral oval.
Download or read book Magnetic Disturbance Statistics from a Single Station Q Index Applied to an Actual OTH B Radar Situation written by B. S. Dandekar and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the systematic diurnal motion of the auroral oval, the Q values of magnetic activity derived from a single station are not directly usable to determine the expected degree of auroral activity. To remove the diurnal effects from a single station data base, which leads in daytime to an under-estimation of the Q index, an empirical set of detrending factors was determined for the Sodankyla Q data base. These factors show that the probability that a given level of magnetic activity will be exceeded for a given duration is underestimated by up to a factor of 2 in the least sensitive daytime sector. The detrended data base has been analyzed to determine the probability that a given Q value is exceeded for a selected duration. This analysis has been done for durations up to 12 hr separately for the night and daytime detrended data bases. The results are very similar and confirm that the detrending has been successfully accomplished. Finally the individual and cumulative probabilities that a given Q is exceeded for a selected duration (periods from 0.25 to 24 hr) have been established for the fully detrended data base. To interpret the results in their effect on the Over-the-Horizon Experimental Radar System, the distribution of probabilities has been modulated with the dynamics of the auroral oval by use of the Starkov equation (1969). This permits the assessments of the probability that a fixed location in the radar coverage area is under the auroral oval.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Statistical Relations Among Q Kp and the Global Weather Central K Indices written by B. S. Dandekar and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The K index determined by the Air Force Global Weather Central has been compared with Kp and Q (from Sodankyla) for the period March 1978 - May 1981 to determine empirical relations between Kp vs K, Q vs Kp, and Q vs K. The study shows that the K index is a reasonably good measure of Kp during most of the time. The time-dependent relations between Q and K, and Kp and K are derived, so that one can convert the K (AFGWC) index to the Kp or Q index for specification of the auroral ionosphere in the Experimental Radar System test region.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1980 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of the Auroral Oval Q Index from the Air Weather Service K Index written by B. S. Dandekar and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1980 with total page 1414 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Construction and Operation of an Ionospheric Research Facility for the High Frequency Active Auroral Research Program HAARP written by and published by . This book was released on 1993 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Research Papers written by and published by . This book was released on 1993 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteorological and Geoastrophysical Abstracts written by and published by . This book was released on 1981 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Japan Electronics Buyers Guide written by and published by . This book was released on 1990 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department of Defense Dictionary of Military and Associated Terms written by and published by . This book was released on 1994 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Radar Systems written by Merrill I. Skolnik and published by . This book was released on 1988 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Science and Technology Index written by and published by . This book was released on 1995 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geophysical Abstracts written by and published by . This book was released on 1985 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Unique 3 in 1 Research Development Directory written by and published by . This book was released on 1975 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
