Description: Das Projekt "Stratosphaeren- und Troposhphaerenexperimente mittels von Flugzeugen durchgefuehrter Messungen (STREAM)" wird vom Umweltbundesamt gefördert und von Max-Planck-Institut für Chemie (Otto-Hahn-Institut) durchgeführt. The STREAM activity involves improvement of an instrument package for a high flying aircraft (13 km) to perform fast response in situ measurements, enabling relatively low cost and flexible participation in process studies and measurement intensives to study the chemistry and exchange processes between the free troposphere and lower stratosphere. The objectives are - To improve the understanding of the processes that control stratosphere-troposphere exchange in mid-latitudes, notable cross-tropopause transport of air associated with synoptic disturbances and fronts. This will reduce the uncertainties about downward transport of ozone and nitrogen oxides from the stratosphere and upward transport of (polluted) troposheric air into the lower stratosphere. - To study the chemistry of the mid-latitude lower stratosphere, in particular the role of nitrogen oxides in local production destruction of ozone. This will improve quantification of local chemical processes relative to transport of O3 depleted air from high latitudes, to explain the observed mid-latitude O3 changes in the tropopause region. - To collect experimental information about the background atmospheric chemical composition in the tropopause region. This will enable assessment of the roles of aircraft exhausts and long-range pollution transports in the chemistry of the lower stratosphere and upper troposphere.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Ozon ? Flugzeugabgas ? Messgerät ? Geografische Koordinaten ? Chemische Zusammensetzung ? Flugzeug ? Luftbewegung ? Stickoxide ? Luftverschmutzung ? Abgasausbreitung ? In-Situ-Messung ? Chemisches Verfahren ? Kostensenkung ? Luftfahrzeug ? Luftverkehr ? Stratosphäre ? Studie ? Tropopause ? Troposphäre ? Atmosphäre ? Atmosphärenchemie ? in situ ? Ozonabbau ? Verpackung ?
Region: Rheinland-Pfalz
Bounding box: 7.5° .. 7.5° x 49.66667° .. 49.66667°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1996-02-01 - 1998-01-31
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