The stratosphere is the second layer of the atmosphere of Earth, located above the troposphere and below the mesosphere. The stratosphere is an atmospheric layer composed of stratified temperature layers, with the warm layers of air high in the sky and the cool layers of air in the low sky, close to the planetary surface of the Earth. The increase of temperature with altitude is a result of the absorption of the Sun's ultraviolet (UV) radiation by the ozone layer. The temperature inversion is in contrast to the troposphere, and near the Earth's surface, where temperature decreases with altitude.
Mario José Molina Henríquez was a Mexican physical chemist. He played a pivotal role in the discovery of the Antarctic ozone hole, and was a co-recipient of the 1995 Nobel Prize in Chemistry for his role in discovering the threat to the Earth's ozone layer from chlorofluorocarbon (CFC) gases. He was the first Mexican-born scientist to receive a Nobel Prize in Chemistry and the third Mexican-born person to receive a Nobel prize.
Frank Sherwood "Sherry" Rowland was an American Nobel laureate and a professor of chemistry at the University of California, Irvine. His research was on atmospheric chemistry and chemical kinetics. His best-known work was the discovery that chlorofluorocarbons contribute to ozone depletion.
Paul Jozef Crutzen was a Dutch meteorologist and atmospheric chemist. He and Mario Molina and Frank Sherwood Rowland were awarded the Nobel Prize in Chemistry in 1995 for their work on atmospheric chemistry and specifically for his efforts in studying the formation and decomposition of atmospheric ozone. In addition to studying the ozone layer and climate change, he popularized the term Anthropocene to describe a proposed new epoch in the Quaternary period when human actions have a drastic effect on the Earth. He was also amongst the first few scientists to introduce the idea of a nuclear winter to describe the potential climatic effects stemming from large-scale atmospheric pollution including smoke from forest fires, industrial exhausts, and other sources like oil fires.
Over the last two centuries many environmental chemical observations have been made from a variety of ground-based, airborne, and orbital platforms and deposited in databases. Many of these databases are publicly available. All of the instruments mentioned in this article give online public access to their data. These observations are critical in developing our understanding of the Earth's atmosphere and issues such as climate change, ozone depletion and air quality. Some of the external links provide repositories of many of these datasets in one place. For example, the Cambridge Atmospheric Chemical Database, is a large database in a uniform ASCII format. Each observation is augmented with the meteorological conditions such as the temperature, potential temperature, geopotential height, and equivalent PV latitude.
Susan Solomon is an American atmospheric chemist, working for most of her career at the National Oceanic and Atmospheric Administration. In 2011, Solomon joined the faculty at the Massachusetts Institute of Technology, where she serves as the Ellen Swallow Richards Professor of Atmospheric Chemistry & Climate Science. Solomon, with her colleagues, was the first to propose the chlorofluorocarbon free radical reaction mechanism that is the cause of the Antarctic ozone hole.
The School of Physical Sciences is an academic unit of the University of California, Irvine (UCI) that conducts academic research and teaching in the field of physical sciences. It offers both pre-professional training and general education in the departments of chemistry, earth system science, mathematics, and physics and astronomy. The school enrolls 1,400 undergraduate and graduate students and is one of the top schools in the nation in the number of degrees it confers in the area of physical sciences. It also offers specializations such as biochemistry, statistics, math for economics, applied and computational mathematics, astrophysics, applied physics, biomedical physics, and education. In 1995, the school gained international prominence when Frank Sherwood Rowland, a professor in chemistry and Frederick Reines, a professor in physics, won the Nobel Prize in their respective fields. It was the first time two people won the prize in the same year in two different fields at the same public university.
SAGE III on ISS is the fourth generation of a series of NASA Earth-observing instruments, known as the Stratospheric Aerosol and Gas Experiment. The first SAGE III instrument was launched on a Russian Meteor-3M satellite. The recently revised SAGE III was mounted to the International Space Station where it uses the unique vantage point of ISS to make long-term measurements of ozone, aerosols, water vapor, and other gases in Earth's atmosphere.
Ulrich "Uli" Pöschl is an Austrian chemist who was appointed Director of the newly founded Department of Multiphase Chemistry at the Max Planck Institute for Chemistry in Mainz, Germany on 1 October 2012.
Veronica Vaida is a Romanian-American chemist and professor at the University of Colorado Boulder. She is an expert in environmental chemistry and aerosols.
Murry Lewis Salby was an American atmospheric scientist who focused on upper atmospheric wave propagation for most of his early career, and who more recently argued against aspects of the scientific consensus that human activity contributes to climate change. He has written two textbooks, Fundamentals of Atmospheric Physics (1996), and Physics of the Atmosphere and Climate (2011). The latter textbook, building on his first book, offers an overview of the processes controlling the atmosphere of Earth, weather, energetics, and climate physics.
Anne Mee Thompson is an American scientist, who specializes in atmospheric chemistry and climate change. Her work focuses on how human activities have changed the chemistry of the atmosphere, climate forcing, and the Earth's oxidizing capacity. Thompson is an elected fellow of the American Meteorological Society, American Geophysical Union, and AAAS.
Akkihebbal Ramaiah (Ravi) Ravishankara ForMemRS FAAAS FRSC is a scientist specializing in Chemistry and Atmospheric Sciences, and University Distinguished Professor in the Departments of Chemistry and Atmospheric Sciences at Colorado State University, Fort Collins.
Kristie Ann Boering is a Professor of Earth and Planetary Science and the Lieselotte and David Templeton Professor of Chemistry at University of California, Berkeley. She studies atmospheric chemistry and mass transport in the extraterrestrial atmosphere using kinetics and photochemistry. Boering was elected a member of the National Academy of Sciences in 2018.
Mian Chin is a Chinese atmospheric chemist. She is a physical scientist in the atmospheric chemistry and dynamics laboratory in the earth science division at Goddard Space Flight Center. Her research includes aerosol-cloud-chemistry-climate interactions. She received the NASA Exceptional Achievement Medal in 2005.
Nadine Unger is a Professor of Atmospheric Chemistry at the University of Exeter. She has studied the role of human activities and forests on the Earth's climate.
José Luis Jiménez-Palacios is a Spanish–American chemist and engineer. As a professor of chemistry at the University of Colorado Boulder, Jimenez contributed to the establishment of the Aerodyne Aerosol Mass Spectrometer, an instrument for real-time analysis of aerosol size and composition.
Joyce Penner is an atmospheric scientist known for her research on climate change, especially on the impact of aerosols and clouds.
Guy P. Brasseur is a Belgian meteorologist and climate scientist. His research interests include stratospheric ozone depletion, global air pollution, solar-terrestrial interactions and earth system research.
John W. Birks is an American atmospheric chemist and entrepreneur who is best known for co-discovery with Paul Crutzen of the potential atmospheric effects of nuclear war known as nuclear winter. His most recent awards include the 2019 Haagen-Smit Clean Air Award for his contributions to atmospheric chemistry and the 2022 Future of Life Award for discovery of the nuclear winter effect.
