Lloyd Viel Berkner (February 1, 1905 in

Milwaukee, Wisconsin Milwaukee ( ), officially the City of Milwaukee, is both the most populous and most densely populated city in the U.S. state of Wisconsin and the county seat of Milwaukee County. With a population of 577,222 at the 2020 census, Milwaukee i ...

– June 4, 1967 in Washington, D.C.) was an American

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...

and

engineer Engineers, as practitioners of engineering, are professionals who Invention, invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considerin ...

. He was one of the inventors of the measuring device that since has become standard at ionospheric stations because it measures the height and electron density of the

ionosphere The ionosphere () is the ionized part of the upper atmosphere of Earth, from about to above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays ...

. The data obtained in the worldwide net of such instruments were important for the developing theory of

short wave Shortwave radio is radio transmission using shortwave (SW) radio frequencies. There is no official definition of the band, but the range always includes all of the high frequency band (HF), which extends from 3 to 30 MHz (100 to 10 m ...

radio propagation to which Berkner himself gave important contributions. Berkner was elected to the United States

National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nat ...

in 1948. Later he investigated the development of the

Earth's atmosphere The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing fo ...

. Since he needed data from the whole world, he proposed the

International Geophysical Year The International Geophysical Year (IGY; french: Année géophysique internationale) was an international scientific project that lasted from 1 July 1957 to 31 December 1958. It marked the end of a long period during the Cold War when scientific i ...

in 1950. At that time, the IGY was the largest cooperative study of the Earth ever undertaken. Berkner was elected a Fellow of the

American Academy of Arts and Sciences The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, a ...

and a member of the

American Philosophical Society The American Philosophical Society (APS), founded in 1743 in Philadelphia, is a scholarly organization that promotes knowledge in the sciences and humanities through research, professional meetings, publications, library resources, and communit ...

in 1956. The

IGY Immunoglobulin Y (abbreviated as IgY) is a type of immunoglobulin which is the major antibody in bird, reptile, and lungfish blood. It is also found in high concentrations in chicken egg yolk. As with the other immunoglobulins, IgY is a class ...

was carried out by the

International Council of Scientific Unions The International Council for Science (ICSU, after its former name, International Council of Scientific Unions) was an international non-governmental organization devoted to international cooperation in the advancement of science. Its members ...

while he was president in 1957–1959. He was also a member of the

President's Scientific Advisory Committee The President's Science Advisory Committee (PSAC) was created on November 21, 1957, by President of the United States Dwight D. Eisenhower, as a direct response to the Soviet launching of the Sputnik 1 and Sputnik 2 satellites. PSAC was an upgrade ...

in 1958 while he was president of Associated Universities Inc. In 1963, Berkner, with L.C. Marshall, advanced a theory to describe the way in which the atmospheres of the

Solar System The Solar System Capitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar ...

's inner planets had evolved. Beginning in 1926, as a naval officer, Berkner assisted in the development of radar and navigation systems, naval aircraft electronics engineering, and studies that led to the construction of the Distant Early Warning system, a chain of radar stations designed to give the United States advance warning in the event of a missile attack across the North Pole. Berkner worked with Dallas community leaders to establish the Graduate Research Center of the Southwest (later renamed the Southwest Center for Advanced Studies, which would eventually become The

University of Texas at Dallas The University of Texas at Dallas (UTD or UT Dallas) is a public research university in Richardson, Texas. It is one of the largest public universities in the Dallas area and the northernmost institution of the University of Texas system. It w ...

). He wrote more than 100 papers and several books, including ''Rockets and Satellites'' (1958), ''Science in Space'' (1961), and ''The Scientific Age'' (1964). In 1961, Berkner was president of the

Institute of Radio Engineers The Institute of Radio Engineers (IRE) was a professional organization which existed from 1912 until December 31, 1962. On January 1, 1963, it merged with the American Institute of Electrical Engineers (AIEE) to form the Institute of Electrical ...

Legacy

Lloyd V. Berkner High School in

Richardson, Texas Richardson is a city in Dallas and Collin counties in the U.S. state of Texas. As of the 2020 United States census, the city had a total population of 119,469. Richardson is an inner suburb of the city of Dallas. It is home to the University ...

was named after him in 1969, as was Lloyd V. Berkner Hall at the

. The lunar crater Berkner was named in his honor.

Berkner Island Berkner Island (also known as the Berkner Ice Rise or as Hubley Island) is an Antarctic ice rise, where bedrock below sea level has caused the surrounding ice sheet to create a dome. If the ice cap were removed, the island would be underwater. Be ...

in Antarctica was also named for Berkner because of his work as a radio operator on the first Byrd expedition to Antarctica in 1928. Berkner was married to Lillian Fulks Berkner and had two children.

References

External links

National Academy of Sciences Biographical Memoir
{{DEFAULTSORT:Berkner, Lloyd 1905 births 1967 deaths University of Minnesota alumni 20th-century American physicists Scientists from Milwaukee Engineers from Wisconsin Fellows of the American Academy of Arts and Sciences 20th-century American engineers Members of the United States National Academy of Sciences Fellows of the American Physical Society Members of the Royal Swedish Academy of Sciences Members of the American Philosophical Society