Objective
To determine by measurements and analysis the relative contribution from air traffic exhaust emissions to the composition of the lower stratosphere and upper troposphere at altitudes between 9 and 13 km within and near the flight corridor over the North Atlantic.
To assess the effects of air traffic emissions in that region in relation to clean back-ground concentrations and pollutant concentrations from various sources and to analyze their importance for changes in ozone, oxidising capacity, aerosols and clouds.
The work programme includes the following tasks:
Task 1: Performance of in situ measurements within and near to the flight corridor extending over the whole
corridor scale, with focus on winter weather conditions.
- Improve and complete instruments to be used onboard the Falcon. - Performance of a Falcon measurement campaign in winter early 1997 including weather forecasts for the
campaign planning.
- Measurements with a B747 of NO, NO2, O3 and H2O along the North Atlantic route and coordination with
MOZAIC measurements.
- Set-up of data bank
Task 2: Analysis and interpretation of the previous and the additional measurements in correlation with the
actual emissions, meteorology and background air chemistry conditions during the measurement periods.
- Refinement of models
- Analysis of the horizontal and vertical trace gas distributions - Quantification of the relative contributions from surface emissions relative to air traffic emissions
- Determination of the frequency and area sizes of regions with ice supersaturation
- Analysis of interaction between multiple plumes
- Analysis of ozone chemistry, mainly in upper troposphere and also in lower stratosphere for measured
situations.
The platforms and tools, which will be used in the project, are: - Dedicated research aircraft Falcon (maximum latitude 13.7 km, range 4075 km, endurance 5.5 h, payload
1000kg) and automatic instrumented container on B747.
- Instruments to measure on Falcon: O3 (UV-absorption), NO, NO2, NOy (Chemiluminescence), H2O (Frost
point hygrometer), CO2 (IR-absorption), HNO3, HNO2, SO2, H2SO4, acetone, HCN, (Mass Spectrometry)
Particulates (CN-counter, electrostatic aerosol classifier), wind, temperature, pressure (standard meteorological
instrumentation), position (INS and GPS navigation system).
- A Swissair B-747 Combi is used as measuring platform for instrumented container to measure NO, NO2, H2O,
O3 on routes across the North Atlantic.
- The models used comprise the scales of individual plumes, multiple plumes, the North Atlantic and the global
scale. Global and regional chemical transport models will be applied which use the actual weather analysis data
from numerical weather prediction models, as provided e.g. by ECMWF. The same data will be used to
compute trajectories of the air masses reaching or leaving the measured flight paths. Along these trajectories,
various plums are used to compute the lateral and vertical turbulent dispersion, the chemical transformations
and aerosol formation.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences earth and related environmental sciences environmental sciences pollution
- natural sciences chemical sciences analytical chemistry mass spectrometry
- natural sciences earth and related environmental sciences atmospheric sciences meteorology troposphere
- social sciences social geography transport navigation systems
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Coordinator
82234 WESSLING
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.