Storm Watchers: The Turbulent History of Weather Prediction from Franklin's Kite to El Nino

Overview

A lively, inspiring account of the pioneers who sought to accurately predict the weather

Benjamin Franklin . . . James P. Espy . . . Cleveland Abbe . . . Carl-Gustaf Rossby . . . Jule G. Charney . . . just a few of the remarkable individuals who struggled against formidable odds to understand the atmosphere and predict the weather. Where they saw patterns and processes, others saw randomness and tumult–and yet they strove to make their voices ...

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Overview

A lively, inspiring account of the pioneers who sought to accurately predict the weather

Benjamin Franklin . . . James P. Espy . . . Cleveland Abbe . . . Carl-Gustaf Rossby . . . Jule G. Charney . . . just a few of the remarkable individuals who struggled against formidable odds to understand the atmosphere and predict the weather. Where they saw patterns and processes, others saw randomness and tumult–and yet they strove to make their voices heard, often saving lives in the process.

Storm Watchers takes you on a fascinating journey through time that captures the evolution of weather forecasting. From the age when meteorology was considered one step removed from sorcery to the modern-day wizardry of supercomputers, John Cox introduces you to the pioneering scientists whose work fulfilled an ancient dream and made it possible to foretell the future. He tells the little-known stories of these weathermen, such as Ptolemy’s weather predictions based on astrology, John Finley’s breakthrough research in identifying tornadoes, and Tor Bergeron’s new techniques of weather forecasting, which contributed to its final worldwide acceptance.

Filled with extraordinary tales of bravery and sacrifice, Storm Watchers will make you think twice the next time you turn on the local news to catch the weather report.

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Editorial Reviews

From the Publisher
"A fascinating volume in which John D. Cox looks at both the science and the personalities of the men who made modern meteorology." (The Associated Press)

"…a fascinating volume in which John D. Cox looks both at the science and personality of the men who made modern meteorology…" (The Associated Press, 14 October 2002)

“…This lively, inspiring account reveals the courage and bravery of the early weather pioneers…”(Firstscience.com, 15 May 2003)

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Product Details

  • ISBN-13: 9780471381082
  • Publisher: Wiley
  • Publication date: 8/19/2002
  • Edition number: 1
  • Pages: 252
  • Product dimensions: 6.34 (w) x 9.63 (h) x 0.95 (d)

Meet the Author

JOHN D. COX, a veteran science writer, is also the author of Weather for Dummies, which the Bulletin of the American Meteorological Society called "extraordinary." His journalism experience includes work at the Sacramento Bee, Reuter Ltd., and United Press International. In 1995, Cox was awarded a Knight Science Journalism Fellowship at the Massachusetts Institute of Technology, where he studied oceanography and atmospheric science.

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Read an Excerpt

Storm Watchers

The Turbulent History of Weather Prediction from Franklin's Kite to El Niño
By John D. Cox

John Wiley & Sons

ISBN: 0-471-38108-X


Chapter One

Benjamin Franklin

Chasing the Wind

* * *

It is typical of the history of meteorology that the modern study of storms should begin with the description of a spoiled astronomical event.

The study of weather has always been measured, invariably to its detriment, by the standards of astronomy, its older and more respected sister science. Through thousands of years of kingdoms advised by astronomers, there was never a Meteorologist Royal. Knowledge of the heavens was far advanced by the time the investigation of weather was deemed worthy of a serious man's preoccupation. In the middle of the eighteenth century, astronomy was preeminent and meteorology was hardly a science at all. Some things were respectably knowable about the physical world and some were not.

Two hundred fifty years ago, astronomers could predict the occasions of lunar eclipses precisely as to date and time of day, and they could explain their cause and effects: that the moon's orbit passes periodically out of the brightness of the sun's light and into the darkness of the celestial shadow cast by Earth. By such divinely predictable events the clockwork universe was affirmed. About the intervening weather, on the other hand, that a storm might blow up and obscure an eclipse-whether, when, where, or why-no one had any idea about such unaccountable acts of God.

In the autumn of 1743, as the moon approached Earth's shadow, Benjamin Franklin, a 37-year-old printer and newspaper publisher in the American colony of Pennsylvania, was making plans to witness the eclipse from his home in Philadelphia. A busy and prosperous man, he was nonetheless an eager observer of such phenomena. This eclipse would begin about 8:30 P.M. on October 21, a Friday night. But as Franklin recalled a few years later in a letter to his friend Jared Eliot, "before night a storm blew up at northeast, and continued violent all night and all the next day; the sky thick-clouded, dark and rainy, so that neither moon nor stars could be seen."

Obscured as it was, the timing of the eclipse illuminated for the perceptive Franklin something entirely unexpected about the violent storm, its whereabouts, and its movement that night. As he wrote to Eliot:

The storm did great damage all along the coast, for we had accounts of it in the newspapers from Boston, Newport, New York, Maryland and Virginia; but what surprised me was, to find in the Boston newspapers, an account of the observation of that eclipse made there; for I thought as the storm came from the northeast, it must have begun sooner at Boston than with us, and consequently have prevented such an observation. I wrote my brother (in Boston) about it, and he informed me that the eclipse was over there an hour before the storm began.

From this information, a scrap of detail that might have gone unnoticed in the hands of a less vitally interested observer, grew an idea that would be central to meteorology, especially to weather forecasting. Storms have characteristic structures and preferred directions of travel. Franklin formed a generalization about the movement of what he continued to describe to Eliot as "storms from the northeast" that could blow violently, sometimes for three or four days. Franklin wrote: "Of these I have had a very singular opinion for some years, viz: that, though the course of the wind is from northeast to southwest, yet the course of the storm is from southwest to northeast; the air is in violent motion in Virginia before it moves in Connecticut, and in Connecticut before it moves at Cape Sable, etc." More than 150 years later, in 1899, the Harvard scholar William Morris Davis, writing in the Journal of the Franklin Institute, would look back on this suggestion as a defining moment, observing that "with this began the science of weather prediction." In Franklin's day, however, weather prediction was beyond the realm of science.

As a practical matter, the storm traveled faster than could words of warning in the eighteenth century, although clearly not as fast as Franklin's estimate of 100 miles an hour. The great man was not so great with numbers. In any case, obstacles to scientific weather prediction were more deeply rooted in both the Old World and the New. Future weather was treated like the future of anything else, part of the occult prognostications of astrologers, especially in Europe, where their profitably published almanacs offered artfully worded weather predictions for the entire year. In the colonies, Franklin himself enjoyed a handsome income for 25 years as publisher of Poor Richard's Almanack, although his prognostications of weather always came with characteristic humor and wit. Praising Franklin's contributions to meteorology, the pioneering American weather scientist Cleveland Abbe took a close look at the Franklin almanacs in 1906 and found no astrology in them. In a presentation to the American Philosophical Society of Philadelphia, Abbe said, "Now while it is true that in these he published conjectures as to the weather during the respective years, yet we are not to think of Franklin as a planetary meteorologist, for the fact is that in every one of these issues he disclaims all knowledge of the weather or astrology and pokes fun at his own predictions as utterly absurd and useless."

Explanations for the causes of weather remained a traditional part of church doctrine, as it had through the Middle Ages. Since its rediscovery in the twelfth century, Aristotle's Meteorologica had been installed as Christian dogma, and his conjectures about the organismic exhalations of Earth satisfied nearly 700 years of theological meteorology. (As a meteorologist, Aristotle was a pretty good philosopher. Not even the loyal pupil Theophrastus could accept his mentor's bald assertion that the wind was not moving air.) In the American colonies, the Puritan clergy yielded to no "secondary natural causes" the power and word of the Almighty in the fierce tempests of the New World, even under the most terrible circumstances.

On August 31, 1735, in New London, Connecticut, a great storm rose overhead just as the Reverend Eliphalet Adams was beginning his afternoon service. A bolt of lightning, "the fire of God," shot down upon his church. Timbers crashed down among the congregation. Smoke and dust filled the air. So fierce was the thunderclap that it left their ears ringing. Everywhere in the wrecked room were wounded of his flock, burned and broken. Pitiful shrieks of shock and agony rang out. At his feet, at the very horn of his altar, a young man, Edwin Burch, lay dying.

The following Sabbath, those of the congregation who were not too seriously injured came back to the temporarily patched meetinghouse to hear about the god who strikes down the faithful at prayer. A proud Adams, with a view to posterity, saw to the printing of his sermon "God Sometimes Answers His People by Terrible Things in Righteousness. A Discourse Occasioned by that Awful Thunderclap which Struck the Meeting-house in N. London, August 31st, 1735." Adams saw God's righteous hand in the sheer power of the event and his merciful hand in the fact that the calamity was not worse: "We might have died by scores and by hundreds, yea, the whole congregation might have been dispatched at once into eternity."

For the disaster, and for the death of Edwin Burch, the Puritan faithful had only their unworthy selves to blame. Adams sermonized:

There is no blemish or defect in any thing which God doth, nothing of which we should dare to say, that it ought to have been otherwise; there are faults enough and enough in us to justify the Lord in his most severe dispensations towards us; we must hold our peace and not open our mouths to complain, nor suffer an unease or grudging thought to stir in our hearts, how heavy so ever the strokes be, or how much so ever we are made to smart thereby, we must still ascribe righteousness to our maker and our judge.

Just 10 years later, in nearby Philadelphia, Benjamin Franklin would begin a series of investigations into the nature of electricity, work that made him famous. Before long, in 1749, he was entering into his notebook certain conjectures about its similarities to lightning: "The electric fluid is attracted by points; we do not know whether this property is in lightning; but since they agree in all the particulars wherein we can already compare them, is it not probable that they agree likewise in this? Let the experiment be made." In June, 1752, he performed his famous kite experiment, causing an electrostatic spark between a knuckle and a key hanging from the twine. This and other experiments of his design soon established lightning as an electrical phenomenon in the atmosphere. The discovery would lead to the installation of insulated and grounded iron "points," or lightning rods, that carried the fire of God harmlessly down the sides of vulnerable church steeples across the land.

Benjamin Franklin's seven years of research into the nature of electricity, his most intensely focused period of scientific activity, earned him an international reputation as a scientist. In later years, he stopped practicing science only in the sense that in leading the American colonies through revolution and into nationhood, he lost his time to pursue it. All his life, he remained one of the most observant students of nature. Nothing interesting about the weather, or about much of anything else, seems ever to have escaped his curiosity. He thought and wrote about weather for 60 years. In 1726, on a return voyage from London to Philadelphia, entries in his journal included routine weather observations and the appearance of an unusual "lunar rainbow." In 1786, he was offering long-range forecasts to members of his family.

In the spring of 1755, he and a group of friends who were riding on the Maryland country estate of Colonel Benjamin Tasker watched a whirlwind approaching, growing as it came toward them up a hill. Franklin described this adventure in a letter in August to a friend, Peter Collinson.

The rest of the company stood looking after it; but my curiousity being stronger, I followed it, riding close by its side, and observed its licking up in its progress all the dust that was under its smaller part. As it is a common opinion that a shot, fired through a water-spout will break it, I tried to break this little whirlwind by striking my whip frequently through it, but without any effect. Soon after, it quitted the road and took into the woods, growing every moment larger and stronger, raising instead of dust the old dry leaves with which the ground was thick covered, and making a great noise with them and the branches of the trees, bending some tall trees round in a circle swiftly and very surprisingly, though the progressive motion of the whirl was not so swift but that a man on foot might have kept pace with it; but the circular motion was amazingly rapid. By the leaves it was now filled with I could plainly perceive that the current of air they were driven by moved upwards in a spiral line; and when I saw the trunks and bodies of large trees enveloped in the passing whirl, which continued entire after it had left them, I no longer wondered that my whip had no effect on it in its smaller state.

Franklin rejoined the company, and as the group traveled on for nearly three miles, he watched the leaves taken up by the whirlwind continue to fall from the sky. He wrote Collinson: "Upon my asking Colonel Tasker if such whirlwinds were common in Maryland, he answered pleasantly: 'No, not at all common; but we got this on purpose to treat Mr. Franklin.' And a very high treat it was too."

Accounts of whirlwinds, tornadoes, and waterspouts appear in the chronicles of the ancient world, although nowhere were they as common as in North America, where, since the founding of the colonies, they had been subjects of speculation. In the middle of the eighteenth century, Franklin was in the thick of it, providing an early description of the process of convection. In a letter written in 1753, he proposed two sets of conditions for such winds:

1. That the lower region of air is often more heated, and so more rarified, than the upper; consequently, specifically lighter. The coldness of the upper region is manifested by the hail, which sometimes falls from it in a hot day. 2. That heated air may be very moist, and yet the moisture so equally diffused and rarified, as not to be visible till colder air mixes with it, when it condenses and becomes visible. Thus our breath, invisible in summer, becomes visible in winter.

Although he was always a close observer, Franklin was still a natural philosopher at heart, and he was not inclined to clutter his conjectures with a lot of data or mathematics. He knew good science when he saw it, and he knew when his own theorizing wandered beyond observed facts into "the wilds of fancy." But the man who completed only two years of formal education never lost his disdain for mathematics, the lingua franca of modern meteorology. In his letter describing his thinking about whirlwinds, he concluded, "If my hypothesis is not the truth itself it is least as naked: For I have not, with some of our learned moderns, disguised my nonsense in Greek, clothed it in algebra, or adorned it with fluxions. You have it in puris naturalibus."

Franklin also found himself attracted to questions of climate, the longer-term state of weather, a subject which had bedeviled the colonists and their European sponsors since the founding of the settlements in the sixteenth century. Without a grasp of the general circulation of the atmosphere, the west-to-east flow in the middle latitudes, nothing was known of the more extreme continental character of the New World's climate. Basking in their moderate oceanic climes, warmed by the Gulf Stream, Europeans were confounded by the patterns of seasonal weather in the colonies. By Franklin's day, however, a general warming trend was noticeable, and in 1763, he met with a group of colonial scholars to discuss the changing climate. Franklin agreed with others that deforestation was likely the cause, that "cleared land absorbs more heat and melts snow quicker," although he argued that many more years of observations would be necessary to make the case.

Other investigations by Franklin at this time led to important advances in the understanding of the Gulf Stream, the "river" of warm water that travels from the tropics far north along the American coast and across the North Atlantic.

Continues...


Excerpted from Storm Watchers by John D. Cox Excerpted by permission.
All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

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Table of Contents

Introduction.

PART I: A Newborn Babe.

1. Benjamin Franklin: Chasing the Wind.

2. Luke Howard: Naming the Clouds.

3. James Glaisher: Taking to the Air.

PART II: American Storms.

4. William C. Redfield: Walking the Path of Destruction.

5. James P. Espy: "The Storm Breeder".

6. Elias Loomis: Mapping the Storm.

7. Joseph Henry: Setting the Stage.

8. Matthew Fontaine Maury: A Storm of Controversy.

9. William Ferrel: A Shy Genius.

PART III: The Main Artery.

10. Robert FitzRoy: Prophet Without Honor.

11. Urbain J. J. Le Verrier: Clouds over Crimea.

12. Cleveland Abbe: "Ol' Probabilities".

13. John P. Finley: Down Tornado Alley.

14. Mark W. Harrington: Civilian Casualty.

15. Isaac Monroe Cline: Taking Galveston by Storm.

16. Gilbert Walker: The Southern Oscillation.

17. C. LeRoy Meisinger: Death by Daring.

PART IV: Together at the Front.

18. Vilhelm Bjerknes: The Bergen Schoolmaster.

19. Lewis Fry Richardson: The Forecasting Factory.

20. Jacob Bjerknes: From Polar Front to El Niño.

21. Tor Bergeron: A Gifted Vision.

22. Carl-Gustaf Rossby: Conquering the Weather Bureau.

23. Sverre Petterssen: Forecasting for D-Day.

PART V: Suddenly New Science.

24. Jule Gregory Charney: Mastering the Math.

25. Jerome Namias: The Long Ranger.

26. Edward N. Lorenz: Calculating Chaos.

27. Tetsuya Theodore Fujita: Divining the Downburst.

28. Ants Leetmaa: Out on a Limb.

Bibliography.

Index.

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