Author: Jacques Pelon
Publisher:
ISBN:
Category :
Languages : fr
Pages : 251
Book Description
MISE EN OEUVRE D'UN SYSTEME LIDAR, PERMETTANT LA MESURE A PARTIR DU SOL DE LA DISTRIBUTION VERTICALE DE L'OZONE DU SOL A 50 KM D'ALTITUDE ET DE SON CONTENU INTEGRE. LES DEUX OBJECTIFS SCIENTIFIQUES VISES SONT D'UNE PART LA SURVEILLANCE DE L'OZONE ATMOSPHERIQUE POUR DETERMINER L'EVENTUELLE INFLUENCE DE L'ACTIVITE HUMAINE ET D'AUTRE PART L'ETUDE DU COMPORTEMENT DYNAMIQUE DE L'OZONE A MOYENNE ET PETITE ECHELLE LORS DES PROCESSUS D'ECHANGE ENTRE LA TROPOSPHERE ET LA STRATOSPHERE
DISTRIBUTION VERTICALE DE L'OZONE DANS LA TROPOSPHERE ET LA STRATOSPHERE
Author: Jacques Pelon
Publisher:
ISBN:
Category :
Languages : fr
Pages : 251
Book Description
MISE EN OEUVRE D'UN SYSTEME LIDAR, PERMETTANT LA MESURE A PARTIR DU SOL DE LA DISTRIBUTION VERTICALE DE L'OZONE DU SOL A 50 KM D'ALTITUDE ET DE SON CONTENU INTEGRE. LES DEUX OBJECTIFS SCIENTIFIQUES VISES SONT D'UNE PART LA SURVEILLANCE DE L'OZONE ATMOSPHERIQUE POUR DETERMINER L'EVENTUELLE INFLUENCE DE L'ACTIVITE HUMAINE ET D'AUTRE PART L'ETUDE DU COMPORTEMENT DYNAMIQUE DE L'OZONE A MOYENNE ET PETITE ECHELLE LORS DES PROCESSUS D'ECHANGE ENTRE LA TROPOSPHERE ET LA STRATOSPHERE
Publisher:
ISBN:
Category :
Languages : fr
Pages : 251
Book Description
MISE EN OEUVRE D'UN SYSTEME LIDAR, PERMETTANT LA MESURE A PARTIR DU SOL DE LA DISTRIBUTION VERTICALE DE L'OZONE DU SOL A 50 KM D'ALTITUDE ET DE SON CONTENU INTEGRE. LES DEUX OBJECTIFS SCIENTIFIQUES VISES SONT D'UNE PART LA SURVEILLANCE DE L'OZONE ATMOSPHERIQUE POUR DETERMINER L'EVENTUELLE INFLUENCE DE L'ACTIVITE HUMAINE ET D'AUTRE PART L'ETUDE DU COMPORTEMENT DYNAMIQUE DE L'OZONE A MOYENNE ET PETITE ECHELLE LORS DES PROCESSUS D'ECHANGE ENTRE LA TROPOSPHERE ET LA STRATOSPHERE
ETUDE EXPERIMENTALE DE LA DISTRIBUTION VERTICALE DE L'OZONE DANS LA TROPOSPHERE PAR TELEDETECTION LASER
Author: ALEXANDROS.. PAPAGIANNIS
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Book Description
LE DEVELOPPEMENT D'UN SYSTEME OPERATIONNEL DE TELEDETECTION ACTIVE PAR LASER (LIDAR) PERMET L'ETUDE DE LA DISTRIBUTION VERTICALE DE L'OZONE DANS LA TROPOSPHERE (0-15 KM) AVEC UNE GRANDE RESOLUTION TEMPORELLE ET SPATIALE. LE SYSTEME EXPERIMENTAL DEVELOPPE EST DECRIT AINSI QUE LES METHODES DE TRAITEMENT DES DONNEES OBTENUES. L'ANALYSE DES OBSERVATIONS EFFECTUEES A PERMIS D'ETUDIER LES PRINCIPAUX PROCESSUS QUI GOUVERNENT LE BILAN DE L'OZONE DANS LA TROPOSPHERE: LES PROCESSUS D'ECHANGE ENTRE LA TROPOSPHERE ET LA STRATOSPHERE, LE TRANSPORT A LONGUE DISTANCE DANS LA TROPOSPHERE LIBRE ET L'INFLUENCE DES PROCESSUS PHOTOCHIMIQES ET DYNAMIQES SUR L'EVOLUTION DIURNE DE L'OZONE DANS LA BASSE TROPOSPHERE
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Book Description
LE DEVELOPPEMENT D'UN SYSTEME OPERATIONNEL DE TELEDETECTION ACTIVE PAR LASER (LIDAR) PERMET L'ETUDE DE LA DISTRIBUTION VERTICALE DE L'OZONE DANS LA TROPOSPHERE (0-15 KM) AVEC UNE GRANDE RESOLUTION TEMPORELLE ET SPATIALE. LE SYSTEME EXPERIMENTAL DEVELOPPE EST DECRIT AINSI QUE LES METHODES DE TRAITEMENT DES DONNEES OBTENUES. L'ANALYSE DES OBSERVATIONS EFFECTUEES A PERMIS D'ETUDIER LES PRINCIPAUX PROCESSUS QUI GOUVERNENT LE BILAN DE L'OZONE DANS LA TROPOSPHERE: LES PROCESSUS D'ECHANGE ENTRE LA TROPOSPHERE ET LA STRATOSPHERE, LE TRANSPORT A LONGUE DISTANCE DANS LA TROPOSPHERE LIBRE ET L'INFLUENCE DES PROCESSUS PHOTOCHIMIQES ET DYNAMIQES SUR L'EVOLUTION DIURNE DE L'OZONE DANS LA BASSE TROPOSPHERE
Ozone in the Troposphere and Stratosphere, Part 1
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
Book Description
Ozone in the Troposphere and Stratosphere
Author: Robert D. Hudson
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 596
Book Description
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 596
Book Description
Implications of the Vertical Distribution of Ozone in the Troposphere
Author: PR. Sticksel
Publisher:
ISBN:
Category : Air quality
Languages : en
Pages : 24
Book Description
Ozone observed within the troposphere, but above the planetary boundary layer, may arrive there by various routes--descent from the stratosphere, ascent from the surface, or descent from the stratosphere followed by ascent. Once ozone has left the lower stratosphere through a tropopause break it can be transported horizontally for several days before descending to the boundary layer. During this period it may remain as a discrete maximum within a dry, stable layer or undergo mixing with the surrounding air (which may include anthropogenic oxidant) producing an ozone concentration which is uniform with height, in a relatively moist layer. High amounts of stratospheric ozone existing within the troposphere can be expected within dry, stable layers which intersect low tropopauses. High concentrations of stratospheric ozone have been observed to accumulate above a subsidence inversion at the same time that anthropogenic oxidant produces smog below the inversion. Examples are given of the use of isentropic trajectories, ozone profiles, temperature-humidity soundings, and synoptic weather maps in the study of tropospheric ozone.
Publisher:
ISBN:
Category : Air quality
Languages : en
Pages : 24
Book Description
Ozone observed within the troposphere, but above the planetary boundary layer, may arrive there by various routes--descent from the stratosphere, ascent from the surface, or descent from the stratosphere followed by ascent. Once ozone has left the lower stratosphere through a tropopause break it can be transported horizontally for several days before descending to the boundary layer. During this period it may remain as a discrete maximum within a dry, stable layer or undergo mixing with the surrounding air (which may include anthropogenic oxidant) producing an ozone concentration which is uniform with height, in a relatively moist layer. High amounts of stratospheric ozone existing within the troposphere can be expected within dry, stable layers which intersect low tropopauses. High concentrations of stratospheric ozone have been observed to accumulate above a subsidence inversion at the same time that anthropogenic oxidant produces smog below the inversion. Examples are given of the use of isentropic trajectories, ozone profiles, temperature-humidity soundings, and synoptic weather maps in the study of tropospheric ozone.
Ozone in the Troposphere and Stratosphere, Part 2
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 606
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 606
Book Description
Tropospheric Ozone
Author: Ivar S.A. Isaksen
Publisher: Springer Science & Business Media
ISBN: 9400929137
Category : Science
Languages : en
Pages : 433
Book Description
The main objective of the workshop was to increase our knowledge of ozone formation and distribution in the troposphere, its relation to precursor (NO~ and HC species) distribution, how it is affected by transport processes in the troposphere, and to show how the increasing levels of ozone can cause environmental problem. The focus was on the interaction of ozone on regional and global scales. There is mounting evidence that such interactions occur and that the ozone levels are increasing in most of the Northern Hemisphere tropo sphere. A likely source of ozone increase is human activity. As result of this, tropospheric climate may change significantly within a few decades, either through direct effects by ozone itself or indirectly through its effect on other radiatively active trace species. Further more, ozone may have adverse effects on vegetation over large continental areas due to enhanced levels which have been measured to take place. As it is well known that ozone plays a key role in the oxidation of a large number of chemical species in the troposphere, natural as well as man-made, the atmospheric distribution of important trace species like sulfur dioxide, nitrogen oxides and hydrocarbons could be markedly changed as a result of ozone changes. The rapidly increasing interest in tropospheric ozone, and the key role ozone plays in several atmospheric areas as well the obvious increase in the tropospheric concentration of ozone made ozone a natural choice as a topic for the workshop.
Publisher: Springer Science & Business Media
ISBN: 9400929137
Category : Science
Languages : en
Pages : 433
Book Description
The main objective of the workshop was to increase our knowledge of ozone formation and distribution in the troposphere, its relation to precursor (NO~ and HC species) distribution, how it is affected by transport processes in the troposphere, and to show how the increasing levels of ozone can cause environmental problem. The focus was on the interaction of ozone on regional and global scales. There is mounting evidence that such interactions occur and that the ozone levels are increasing in most of the Northern Hemisphere tropo sphere. A likely source of ozone increase is human activity. As result of this, tropospheric climate may change significantly within a few decades, either through direct effects by ozone itself or indirectly through its effect on other radiatively active trace species. Further more, ozone may have adverse effects on vegetation over large continental areas due to enhanced levels which have been measured to take place. As it is well known that ozone plays a key role in the oxidation of a large number of chemical species in the troposphere, natural as well as man-made, the atmospheric distribution of important trace species like sulfur dioxide, nitrogen oxides and hydrocarbons could be markedly changed as a result of ozone changes. The rapidly increasing interest in tropospheric ozone, and the key role ozone plays in several atmospheric areas as well the obvious increase in the tropospheric concentration of ozone made ozone a natural choice as a topic for the workshop.
The Vertical Distribution of Ozone in the Atmosphere
Author: G. F. Walton
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Ozone in the Troposphere and Stratosphere
Author: Robert D. Hudson
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 498
Book Description
Abstract: The papers presented at the 1992 Quadrennial Ozone Symposium held in Charlottesville, Virginia, cover topics in both tropospheric and stratospheric research. These topics include ozone trends and climatology, ground based, aircraft, balloon, rocket and satellite measurements, artic and antarctic research, global and regional modeling, and volcanic effects.
Publisher:
ISBN:
Category : Atmospheric ozone
Languages : en
Pages : 498
Book Description
Abstract: The papers presented at the 1992 Quadrennial Ozone Symposium held in Charlottesville, Virginia, cover topics in both tropospheric and stratospheric research. These topics include ozone trends and climatology, ground based, aircraft, balloon, rocket and satellite measurements, artic and antarctic research, global and regional modeling, and volcanic effects.
Ozone in the Free Atmosphere
Author: Robert Craig Whitten
Publisher: Van Nostrand Reinhold Company
ISBN:
Category : Science
Languages : en
Pages : 312
Book Description
Publisher: Van Nostrand Reinhold Company
ISBN:
Category : Science
Languages : en
Pages : 312
Book Description