Ambient atmosphere

Intercomparison campaigns. Comparison with OPAR instruments that follow 
ACTRIS protocols, in situ, remote sensing in mountain (Maïdo) conditions and 
lidar, cloud radar and sun-sky-lunar photometer in urban (Moufia) conditions.

AVAILABILITY PERIOD: All year round, except 20/12 to 20/01 and 14/07 to 15/08

Specific experiments performed by using the available equipment at OPAR, 
combined with external equipment if needed. For example: use of CCN and INP counters

AVAILABILITY PERIOD: All year round, except 20/12 to 20/01 and 14/07 to 15/08

Campaigns organized by local research group at urban (Moufia) and mountain 
(Maïdo) station for research in aerosol-cloud interaction based on synergistic 
combination of different aerosol and cloud remote sensing and aerosol in-situ 
techniques. 
External research groups are invited to bring their own equipment (remote 
sensing or in situ) in order to get completeness in the essential variables

AVAILABILITY PERIOD: All year round, except 20/12 to 20/01 and 14/07 to 15/08

CiGAS-CH provides remote access for the support of users of the @VOC@ tool, used for VOC data quality assessment.

Measurement and calibration for N2O isotopes.

Measurement and calibration for VOCs/halocarbons.

Investigations of the evolution of ambient air in different environments. Potential for use of two chambers with changes of the conditions in one of the two with the addition of a pollutant or an oxidant.

TIME CONSTRAINTS: None in general. Coordination and planning in advance needed for the transportation of the facility.

It is a mobile facility.

Sources tested in the past include diesel and gasoline engines, wood stoves, pellet stoves, barbecues, etc. Both the primary emissions (after dilution) and their evolution during daytime and nighttime reactions are quantified. The user can supply the source to be studied.

TIME CONSTRAINTS: None in general. Coordination and planning in advance needed for the transportation of the facility.

It is a mobile facility.

Testing / intercomparisons of new instruments (inorganic and organic, gas-phase and particulate pollutants)

TIME CONSTRAINTS: None in general. Coordination and planning in advance needed for the transportation of the facility.

It is a mobile facility.

Conduction of wind Lidar measurements, data processing

TIME CONSTRAINTS: Depending on the availability of instrumentation