Discover
/
Article

Electricity and rain

AUG 01, 1969
Why do the positive and negative charges separate in thunderclouds? What happens in the period between lightning flashes? How is air trapped in hailstones?

DOI: 10.1063/1.3035737

J. Doyne Sartor

THE GENERATION OF ELECTRICITY and the formation of rain in thunderstorms are closely related through the physical and electrical interactions among colliding cloud particles, raindrops and hail. Our understanding of these processes started with the observations of Benjamin Franklin and Lord Rayleigh, in the 18th and 19th centuries, that electric fields exist in thunderclouds and that charged raindrops can coalesce. Modern theories indicate that different fall velocities of large and small drops are responsible for the separation of charge in the interior of the cloud.

References

  1. 1. Lord Rayleigh, Proc. Roy. Soc. (London) 28, 406 (1879).

  2. 2. C. T. R. Wilson, J. Franklin Inst. 208, 1 (1929).https://doi.org/JFINAB

  3. 3. J. Latham, B. J. Mason, Proc. Roy. Soc. (London) A266, 387 (1962).https://doi.org/PRLAAZ

  4. 4. S. E. Reynolds, M. Brook, M. F. Gourley, J. Meteorol. 14, 426 (1957).https://doi.org/JOMYAP

  5. 5. P. V. Hobbs, D. A. Burrows, J. Atmos. Sci. 23, 757 (1966).https://doi.org/JAHSAK

  6. 6. P. A. Allee, B. B. Phillips, J. Meteorol. 16, 405 (1959).https://doi.org/JOMYAP

  7. 7. A. H. Miller, C. E. Shelden, W. R. Atkinson, Phys. Fluids 8, 1921 (1965).https://doi.org/PFLDAS

  8. 8. J. D. Sartor, C. E. Abbott, J. Geophys. Res. 73, 6415 (1968).https://doi.org/JGREA2

  9. 9. J. D. Sartor, W. R. Atkinson, Science 157, 1267 (1967).https://doi.org/SCIEAS

  10. 10. W. R. Atkinson, I. Paluch, J. Geophys. Res. 71, 3811 (1966).https://doi.org/JGREA2

  11. 11. J. Kenney, submitted to J. Geophys. Res. (1968).

  12. 12. M. H. Davis, Quart. J. Mech. Appl. Math. 17, 499 (1964).https://doi.org/QJMMAV

  13. 13. J. D. Sartor, J. Atmos. Sci. 24, 601 (1967).https://doi.org/JAHSAK

  14. 14. R. W. Park, E. J. Crosby, Chem. Eng. Sci. 20, 39 (1965).https://doi.org/CESCAC

  15. 15. I. Langmuir, J. Meteorol. 5, 175 (1948).https://doi.org/JOMYAP

More about the Authors

J. Doyne Sartor. National Center for Atmospheric Research, Boulder, Colo..

This Content Appeared In
pt-cover_1969_08.jpeg

Volume 22, Number 8

Related content
/
Article
Technical knowledge and skills are only some of the considerations that managers have when hiring physical scientists. Soft skills, in particular communication, are also high on the list.
/
Article
Professional societies can foster a sense of belonging and offer early-career scientists opportunities to give back to their community.
/
Article
Interviews offer a glimpse of how physicists get into—and thrive in—myriad nonacademic careers.
/
Article
Research exchanges between US and Soviet scientists during the second half of the 20th century may be instructive for navigating today’s debates on scientific collaboration.
/
Article
The Eisenhower administration dismissed the director of the National Bureau of Standards in 1953. Suspecting political interference with the agency’s research, scientists fought back—and won.
/
Article
Alternative undergraduate physics courses expand access to students and address socioeconomic barriers that prevent many of them from entering physics and engineering fields. The courses also help all students develop quantitative skills.

Get PT in your inbox

Physics Today - The Week in Physics

The Week in Physics" is likely a reference to the regular updates or summaries of new physics research, such as those found in publications like Physics Today from AIP Publishing or on news aggregators like Phys.org.

Physics Today - Table of Contents
Physics Today - Whitepapers & Webinars
By signing up you agree to allow AIP to send you email newsletters. You further agree to our privacy policy and terms of service.