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CORRIGENDUM

CORRIGENDUM 308 BULLETI N AMERICA N METEOROLOGICAL SOCIETY A SEARCH FOR ELECTRICAL EFFECTS ASSOCIATED WITH eralized picture of certain types of cloud systems involved. TH E JET STREAM Evidence is presented of natural seeding mechanisms and of the growth of hydrometeors by collision and accretion. M. Brook and M. H. Wilkening Typical winter-time cloud systems, and the attendant precipitation processes are illustrated. V. J. Schaeffer has described a number of atmospheric electrical phenomena, measured in eastern New York state, which seemed to be related to the close proximity RAT E OF DEPOSIT IN NEW MEXICO OF MAGNETIC of the jet stream axis. Measurements at Socorro, New SPHERULES FROM THE ATMOSPHERE Mexico, where the jet stream appears much less fre- W . D. Crozier quently, were undertaken in the fall of 1955. Records of the electric field and the conductivity were obtained Magnetic spherules have been collected continuously with an electrostatic induction field meter and a small from the atmosphere for some months at several loca- ion collector, respectively. The field and conductivity tions in New Mexico. Rates of deposit, in several size records for several months were analyzed and checked classes, have been determined. When peaks of short against the 300 mb maps furnished by the U. S. Weather duration, that seem to be due to terrestrial material from Bureau. It seems doubtful that a correlation exists be- nearby sources, are eliminated the rate of deposit appears tween the close proximity of the jet axis and the ob- to vary only slowly, and there are indications of cor- served behavior of the atmospheric electric field and relation with meteor showers. Several years' data will be conductivity at Socorro, New Mexico. needed before such correlation can be established firmly, however. The apparent absence of rapid changes in rate WEATHE R MODIFICATION OF CLOUDS AND RADAR of deposit argues against the existence of short-period meteorological effects of the spherules or of other me- John A. Battle teoritic dust that may be associated with the spherules. Time lapse movies will be shown which demonstrate the effectiveness of silver iodide in cloud nucleation. FIELD MEASUREMENT OF NATURAL AND ARTIFICIAL FREEZING NUCLEI PRECIPITATION PROCESSES IN PACIFIC COAST STORMS Paul B. MacCready, Jr., and Theodore B. Smith Walter H. Hoecker Techniques have been developed for quantitative meas- From the records obtained during the Weather Bureau urements of freezing nuclei, with special accent on simple, Artificial Cloud Nucleation Project carried out in west- portable equipment for field use. Results are presented ern Washington in 1953 and 1954, it has been possible to for measurements of natural and industrially produced study the nature of some of the precipitation processes freezing nuclei at various locations, as well as measure- evident in that locality, and to form a preliminary gen- ments of artificial nuclei. pp. 383 second paragraph under "Testing the Tech- nique" should read: "A crude test has been carried out on 87 cases of reported severe tur- bulence. It should be noted here that the general pilot classification "severe" corre- The following errors have been noted in the article sponded to the meteorological class "heavy" by F. C. Bates entitled "A Technique for Predicting before revision of meteorological definitions; Extreme Turbulence Related to Thunderstorms", which although, in some reports, "severe" evidently appeared in the October 1955 issue of the Bulletin (Vol. did carry the old meteorological sense of "se- 36, No. 8, pp, 379-383) : vere", etc. pp. 383 in second paragraph, reference to FIGURE 5 should be to FIGURE 3. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

CORRIGENDUM

Bulletin of the American Meteorological Society , Volume 37 (6): 1 – Jun 1, 1956
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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
eISSN
1520-0477
DOI
10.1175/1520-0477-37.6.308
Publisher site
See Article on Publisher Site

Abstract

308 BULLETI N AMERICA N METEOROLOGICAL SOCIETY A SEARCH FOR ELECTRICAL EFFECTS ASSOCIATED WITH eralized picture of certain types of cloud systems involved. TH E JET STREAM Evidence is presented of natural seeding mechanisms and of the growth of hydrometeors by collision and accretion. M. Brook and M. H. Wilkening Typical winter-time cloud systems, and the attendant precipitation processes are illustrated. V. J. Schaeffer has described a number of atmospheric electrical phenomena, measured in eastern New York state, which seemed to be related to the close proximity RAT E OF DEPOSIT IN NEW MEXICO OF MAGNETIC of the jet stream axis. Measurements at Socorro, New SPHERULES FROM THE ATMOSPHERE Mexico, where the jet stream appears much less fre- W . D. Crozier quently, were undertaken in the fall of 1955. Records of the electric field and the conductivity were obtained Magnetic spherules have been collected continuously with an electrostatic induction field meter and a small from the atmosphere for some months at several loca- ion collector, respectively. The field and conductivity tions in New Mexico. Rates of deposit, in several size records for several months were analyzed and checked classes, have been determined. When peaks of short against the 300 mb maps furnished by the U. S. Weather duration, that seem to be due to terrestrial material from Bureau. It seems doubtful that a correlation exists be- nearby sources, are eliminated the rate of deposit appears tween the close proximity of the jet axis and the ob- to vary only slowly, and there are indications of cor- served behavior of the atmospheric electric field and relation with meteor showers. Several years' data will be conductivity at Socorro, New Mexico. needed before such correlation can be established firmly, however. The apparent absence of rapid changes in rate WEATHE R MODIFICATION OF CLOUDS AND RADAR of deposit argues against the existence of short-period meteorological effects of the spherules or of other me- John A. Battle teoritic dust that may be associated with the spherules. Time lapse movies will be shown which demonstrate the effectiveness of silver iodide in cloud nucleation. FIELD MEASUREMENT OF NATURAL AND ARTIFICIAL FREEZING NUCLEI PRECIPITATION PROCESSES IN PACIFIC COAST STORMS Paul B. MacCready, Jr., and Theodore B. Smith Walter H. Hoecker Techniques have been developed for quantitative meas- From the records obtained during the Weather Bureau urements of freezing nuclei, with special accent on simple, Artificial Cloud Nucleation Project carried out in west- portable equipment for field use. Results are presented ern Washington in 1953 and 1954, it has been possible to for measurements of natural and industrially produced study the nature of some of the precipitation processes freezing nuclei at various locations, as well as measure- evident in that locality, and to form a preliminary gen- ments of artificial nuclei. pp. 383 second paragraph under "Testing the Tech- nique" should read: "A crude test has been carried out on 87 cases of reported severe tur- bulence. It should be noted here that the general pilot classification "severe" corre- The following errors have been noted in the article sponded to the meteorological class "heavy" by F. C. Bates entitled "A Technique for Predicting before revision of meteorological definitions; Extreme Turbulence Related to Thunderstorms", which although, in some reports, "severe" evidently appeared in the October 1955 issue of the Bulletin (Vol. did carry the old meteorological sense of "se- 36, No. 8, pp, 379-383) : vere", etc. pp. 383 in second paragraph, reference to FIGURE 5 should be to FIGURE 3.

Journal

Bulletin of the American Meteorological Society – American Meteorological Society

Published: Jun 1, 1956

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