"SIOMA"
Range

TR30 DB
	The TR30DB transmissometer is a visibility sensor designed for aeronautical purposes.
TR30
	The transmissometer TR30 is a visibility sensor designed for aeronautical purposes.
ALC30
	The ALC 30 offers the most up to date technics in development .
DF320
	The forward scatter sensor DF 320 is a sensor designed for visibility measurements. It has a 4 meter mast. It gives a large scale of accurate and traceable data (up to 70 kms), even in very difficult climatic conditions.
PCL1300
	The UHF PCL 1300 wind profiler measures the vertical profile of the wind.
CAOBS
The CAOBS calculator is a powerful tool used for the acquisition of data from an automatic station, so as to code METAR znfd SYNOP standardized messages.

Integrated Runway Meteorological Observation System
(SIOMA)

The main principles
FOR METEOROLOGICAL AIRPORT SAFETY
These days air safety is a major preoccupation for everybody concerned in air transport. Accordingly aeronautical meteorology is a critical component as much for the safety and well-being of passengers as for the economic planning of airport operators.

SIOMA, conceived in 1990, is characterised by having been developed in close cooperation between DEGREANE HORIZON, the Civil Aviation authorities, METEO FRANCE and the Service Users.
SIOMA is designed for all categories of airports from small VFR aerodromes right up to category III D major international airports; it is an open system, modular and upgradeable complying with the latest standards and recommendations of the WMO and ICAO.
It allows in particular for the rapid extension of sensor configurations (wind profiler, meteorological radar...) or for system architecture ( ATIS, AMSS ...) based on technological needs developpement or new operational needs of operators (new runways, change in airport category...).

SIOMA consists essentially of five sub-functional elements developped by DEGREANE HORIZON:

• Runway equipment
  Meteorological sensors sited at runway mid point, thresholds and met garden.
• CIBUS
  Duplex digital communication network which ensures  a secured sensor data acquisition and transmission through hub concentration and FSK modems with maximum efficiency and reliability.
• CAOBS
  A central Workstation designed for acquisition, processing, data storage and analysis, messages entry and coding  production, distribution facililities for the broadcast of meteorological information and based on a fully redundant operational configuration PC-type computer (normal/stand-by) running Windows.
• AEROVIEW
  Set of PC-type visualisation stations for the comprehensive display of meteorological data and messages.
• Display  indicators
  Set of panel mounted indicators INT300, DEOLIA92 or PC type used as back-up.

SIOMA equipment based on a field proven in-house has developed hardware and software which assure the strength of the system with unmatched performances regarding secure and reliable availability of data.

SIOMA : A leader in the world of airport meteorology