Project theme: Instrument testing and development. Measurements to validate case-studies using operationap NWP models.

Measurements to be made by aircraft: Several types of flight will be undertaken within the period, in response to the available weather conditions. These include: i) Functional testing and initial scientific use of ISMAR (International Sub-Millimetre Airborne radiometer), ii) microphysics and dynamics of boundary-layer clouds for comparison with high-resolution operation NWP models, iii) validation case studies of the Air Quality Unified Model (AQUM), iv) structure and properties of mixed-phase stratiform cloud layers, v) studies of mountain lee-waves

Time constraints: Within the overall period, 6 weeks are set aside for flying commencing on the following dates: 16 and 23 June, 21 and 28 July, 8 and 15 September.

Flights (number and patterns): A total of 8 flights (40 flight hours) is anticipated during the 6 available flying weeks.