Helmut Landsberg
Encyclopedia
Helmut Erich Landsberg was a noted and influential climatologist. He was born in Frankfurt
Frankfurt
Frankfurt am Main , commonly known simply as Frankfurt, is the largest city in the German state of Hesse and the fifth-largest city in Germany, with a 2010 population of 688,249. The urban area had an estimated population of 2,300,000 in 2010...

, Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

, February 9, 1906 and died December 6, 1985 in Geneva
Geneva
Geneva In the national languages of Switzerland the city is known as Genf , Ginevra and Genevra is the second-most-populous city in Switzerland and is the most populous city of Romandie, the French-speaking part of Switzerland...

, Switzerland
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

 while attending a meeting of the World Meteorological Organization
World Meteorological Organization
The World Meteorological Organization is an intergovernmental organization with a membership of 189 Member States and Territories. It originated from the International Meteorological Organization , which was founded in 1873...

. Landsberg was an important figure in meteorology
Meteorology
Meteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries...

 and atmospheric science in education, public service and administration. He authored several notable works, particularly in the field of particulate matter and its influence on air pollution
Air pollution
Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the natural environment or built environment, into the atmosphere....

 and human health. He is the first to write in English about the use of statistical analysis in the field of climatology and implemented such statistical analysis in aiding military operations during World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. He received a number of significant honors during his life. Several honors are now bestowed in his name in recognition of his contributions to his field.

Career

Landsberg received his Ph.D. from the University of Frankfurt in Germany, where Beno Gutenberg was his advisor. Gutenberg was a pupil of the founder of modern seismology Emil Johann Wiechert. and served as a director of the Taunus Observatory of Geophysics and Meteorology at that university before moving to the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 in 1934 to teach geophysics and meteorology
Meteorology
Meteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries...

 at the Pennsylvania State University
Pennsylvania State University
The Pennsylvania State University, commonly referred to as Penn State or PSU, is a public research university with campuses and facilities throughout the state of Pennsylvania, United States. Founded in 1855, the university has a threefold mission of teaching, research, and public service...

. While there, he offered a graduate seminar
Seminar
Seminar is, generally, a form of academic instruction, either at an academic institution or offered by a commercial or professional organization. It has the function of bringing together small groups for recurring meetings, focusing each time on some particular subject, in which everyone present is...

 on bioclimatic problems, the first such graduate course to be taught in the United States. He was subsequently appointed to the faculties of the University of Chicago
University of Chicago
The University of Chicago is a private research university in Chicago, Illinois, USA. It was founded by the American Baptist Education Society with a donation from oil magnate and philanthropist John D. Rockefeller and incorporated in 1890...

 (1941) and the University of Maryland
University of Maryland, College Park
The University of Maryland, College Park is a top-ranked public research university located in the city of College Park in Prince George's County, Maryland, just outside Washington, D.C...

 (1967), with which he continued to work until his death. At Maryland, he served as first Director of the Graduate program in Meteorology (later named the Department of Atmospheric and Oceanic Science), and of the Institute for Fluid Dynamics and Applied Mathematics.

In addition to his work in the field of education, Landsberg was active in public service. During World War II, he headed a project for the United States Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

 that provided information on climate and weather statistics in areas undergoing military missions. The U.S. Air Force Chief of Staff officially commended him for this service. In 1949, Landsberg was appointed to the Air Pollution Committee of U.S. President Harry S. Truman
Harry S. Truman
Harry S. Truman was the 33rd President of the United States . As President Franklin D. Roosevelt's third vice president and the 34th Vice President of the United States , he succeeded to the presidency on April 12, 1945, when President Roosevelt died less than three months after beginning his...

, where he helped to shape U.S. air pollution regulations.

Landsberg's other work included administrative service and editing. For 15 volumes from 1964, Landsberg was the editor in chief of the journal World Study of Climatology. He served at the Cambridge Research Center as Director of the Geophysics Directorate (1951-1954) and at the United States Weather Bureau as Director of the Office of Climatology (1954-1967).

He was a fellow, an honorary member, and Certified Consulting Meteorologist of the American Meteorological Society
American Meteorological Society
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, the American Meteorological Society has a membership...

. He was president of the American Geophysical Union
American Geophysical Union
The American Geophysical Union is a nonprofit organization of geophysicists, consisting of over 50,000 members from over 135 countries. AGU's activities are focused on the organization and dissemination of scientific information in the interdisciplinary and international field of geophysics...

 from 1968 to 1970. He was elected to the National Academy of Engineering
National Academy of Engineering
The National Academy of Engineering is a government-created non-profit institution in the United States, that was founded in 1964 under the same congressional act that led to the founding of the National Academy of Sciences...

 in 1966. Wilfried Schröder has published memorial note on Helmut Landsberg in " Meteorologische Rundschau ", 1985.

Publications

Landsberg's early publications dealt with earthquakes, the impact of weather on aviation, atmospheric suspensions and, most notably, cloud condensation nuclei
Cloud condensation nuclei
Cloud condensation nuclei or CCNs are small particles typically 0.2 µm, or 1/100 th the size of a cloud droplet ) about which cloud droplets coalesce. Water requires a non-gaseous surface to make the transition from a vapour to a liquid. In the atmosphere, this surface presents itself as tiny...

. Landsberg published a ground-breaking worn on condensation nuclei, the submicrometre-sized particles in the air about which clouds form, which was the first to examine the role such particulate matter plays on air pollution and the degree to which it is retained in the respiratory system
Respiratory system
The respiratory system is the anatomical system of an organism that introduces respiratory gases to the interior and performs gas exchange. In humans and other mammals, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles...

. This investigation was the basis of his later work on the impact of urbanization
Urbanization
Urbanization, urbanisation or urban drift is the physical growth of urban areas as a result of global change. The United Nations projected that half of the world's population would live in urban areas at the end of 2008....

 on climate. He also linked falling pressure to the onset of non-induced labor in childbirth. Throughout the 1940s, Landsberg focused on climatology
Climatology
Climatology is the study of climate, scientifically defined as weather conditions averaged over a period of time, and is a branch of the atmospheric sciences...

. He introduced English-speaking audiences to the usefulness of statistical analysis in the field in his 1941 book, Physical Climatology.

Honors

Landsberg received a number of honors and recognitions throughout his career. Among his notable honors were the William Bowie Medal of the American Geophysical Union
American Geophysical Union
The American Geophysical Union is a nonprofit organization of geophysicists, consisting of over 50,000 members from over 135 countries. AGU's activities are focused on the organization and dissemination of scientific information in the interdisciplinary and international field of geophysics...

 (1978), the Outstanding Achievement in Bioclimatology Award (1983) and the Cleveland Abbey Award (1983) of the American Meteorological Society
American Meteorological Society
The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, the American Meteorological Society has a membership...

, and the National Medal of Science
National Medal of Science
The National Medal of Science is an honor bestowed by the President of the United States to individuals in science and engineering who have made important contributions to the advancement of knowledge in the fields of behavioral and social sciences, biology, chemistry, engineering, mathematics and...

 (1985), presented to him by US President Ronald Reagan
Ronald Reagan
Ronald Wilson Reagan was the 40th President of the United States , the 33rd Governor of California and, prior to that, a radio, film and television actor....

.

In recognition of his achievements, his name is associated with several awards bestowed on others. In 1986, the National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration
The National Oceanic and Atmospheric Administration , pronounced , like "noah", is a scientific agency within the United States Department of Commerce focused on the conditions of the oceans and the atmosphere...

 created the "Helmut E. Landsberg" award in his honor as "one of the preeminent climatologists of our time"; the award is granted to "all observer who have completed 60 years of service as cooperative observers." In 2006, The American Meteorological Society created a "Helmut E. Landsberg Award" to recognize outstanding contributions in urban meteorology, climatology, or hydrology.

External links

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