THE INTERNATIONAL CIRRUS EXPERIMENT - MICROPHYSICS DYNAMICS AND RADIATIVE NATURE

Project Information

Grant agreement ID: EV4C0084

Project closed

Start date 1 October 1987

End date 30 September 1990

Funded under

• Multiannual R&D programmes (EEC) in the field of the environment - Climatology and natural hazards - , 1986-1990

Total cost No data

EU contribution No data

Coordinated by

Meteorological Office
United Kingdom

Objective

THE METEOROLOGICAL OFFICE'S PARTICIPATION IN THE INTERNATIONAL CIRUS EXPERIMENT IS MADE UP OF THE FOLLOWING ELEMENTS.

1. PARTICIPATION WITH THEIR C130 AIRCRAFT IN FIELD EXPERIMENTS TO MEASURE DETAILED RADIATIVE PROPERTIES AND MICROPHYSICAL STRUCTURE OF CIRRUS CLOUDS. A PERIOD IN AUTUMN 88 IS PLANNED IN WHICH THE C130 WILL ATTEMPT TO MAKE ONE FLIGHT FOR INTERCOMPARISION OF RADIOMETERS WITH DFVLR'S FALCON. THE MAIN EXPERIMENT WILL BE IN AUTUMN '88 OR SPRING '89 WHEN UP TO 40 FLYING HOURS ARE COMMITED TO ICE.

2. ANALYSIS OF RAW AIRCRAFT DATA AND DATA EXCHANGE WITH THE EUROPEAN PARTICIPATING GROUPS.

3. DETAILED SCIENTIFIC ANALYSIS :

A) RELATING BROAD BAND EMISSIVITY TO THE CLOUD PROBE (20-PMS) DATA.
B) ASSESSING ANGULAR SCATTERING INTENSITIES AS A FUNCTION OF OPTICAL DEPTH.
C) STUDYING THE MULTI-SPECTRAL MEASUREMENTS TO DETERMINE AN EFFECTIVE RADIUS.
D) RELATING (C) TO OBSERVED SIZE DISTRIBUTION AND UNDERSTANDING THE PROBLEM IN DETERMINING ICE WATER CONTENT.
E) DEVELOPING EXISTING MODELS WITH THE DETAIL IN (A)-(D) TO UNDERSTAND HOW TERRESTRIAL AND SOLAR RADIATION INTERACT WITH CIRRUS CLOUD.
F) IMPROVING THE PROCESSING OF PMS-PROBE DATA, INCLUDING INDIVIDUAL PARTICLE CLASSIFICATION AND COMPARISION WITH HOLOGRAPHIC IMAGES. STUDYING HOW TO INFER ICE WATER CONTENT FROM PROBE INFORMATION.
G) BUILDING UP STATISTICS OF CLOUDS PHYSICS INFORMATION WITHIN A FRAMEWORK OF THE ENVIRONMENTAL CONDITIONS. STUDYING THE RELATIONSHIPS BETWEEN MICROPHYSICS AND CLOUD SCALE DYNAMICAL AND THERMODYNAMICAL STRUCTURE.
H) IMPROVING OUR UNDERSTANDING OF THE PHYSICAL PROCESSES CONTROLLING THE MICROPHYSICAL STRUCTURE OF CIRRUS TO DEVELOP MODELS BASED ON THE MICROPHYSICS OF ICE CRYSTAL GROWTH, SEDIMENTATION AND RADIATIVE HEAT TRANSFER WHICH MAY BE USED TO PREDICT CLOUD DEVELOPMENT.

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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.

• natural sciences › earth and related environmental sciences › geology › sedimentology
• engineering and technology › materials engineering › crystals
• engineering and technology › mechanical engineering › vehicle engineering › aerospace engineering › aircraft
• natural sciences › earth and related environmental sciences › atmospheric sciences › meteorology › solar radiation
• natural sciences › computer and information sciences › data science › data exchange

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Programme(s)

• FP1-CLIMAT 3C - Multiannual R&D programmes (EEC) in the field of the environment - Climatology and natural hazards - , 1986-1990

Topic(s)

Data not available

Call for proposal

Data not available

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Meteorological Office

• EU contribution: No data
• Address: London Road ; RG12 2SZ Bracknell ; United Kingdom
• Total cost: No data

Participants (2)

LAB DE METEOROLOGIE DYNAMIQUE

• EU contribution: No data
• Total cost: No data

UNIVERSITAET KOELN

• EU contribution: No data
• Total cost: No data