Publication

A combined determination of wind velocities and ozone concentrations for a first measurement of ozone fluxes with a DIAL instrument during the MEDCAPHOT-TRACE campaign

Hubert van den Bergh
1998
Journal Articles

Abstract

From a data set collected during the MEDCAPHOT-TRACE field campaign, we demonstrate that ozone fluxes can be detd. with a shot-per-shot DIAL instrument operated in the UV spectral region. This is done by the simultaneous reconstruction of ozone concns. and of wind speeds using the same sample of lidar returns. A correlation scheme is used for the wind velocity retrieval, in which the transport of the spatial inhomogeneities of the aerosol backscattering coeff. along the optical path of the system is analyzed.

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https://infoscience.epfl.ch/entities/publication/65414e83-cf08-4984-9c9a-bae3b4e6226e

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Hubert van den Bergh
1998
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/65414e83-cf08-4984-9c9a-bae3b4e6226e

About this result

Related concepts (28)

Ozone–oxygen cycle

The ozone–oxygen cycle is the process by which ozone is continually regenerated in Earth's stratosphere, converting ultraviolet radiation (UV) into heat. In 1930 Sydney Chapman resolved the chemistry involved. The process is commonly called the Chapman cycle by atmospheric scientists. Most of the ozone production occurs in the tropical upper stratosphere and mesosphere. The total mass of ozone produced per day over the globe is about 400 million metric tons.

Wind speed

In meteorology, wind speed, or wind flow speed, is a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature. Wind speed is now commonly measured with an anemometer. Wind speed affects weather forecasting, aviation and maritime operations, construction projects, growth and metabolism rate of many plant species, and has countless other implications. Wind direction is usually almost parallel to isobars (and not perpendicular, as one might expect), due to Earth's rotation.

Ozone layer

The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million.

Related publications (12)

A combined determination of wind velocities and ozone concentrations for a first measurement of ozone fluxes with a DIAL instrument during the MEDCAPHOT-TRACE campaign

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