Measurement of Reflectivity and Doppler Velocity

Tropospheric profile up to 12 km—18 km—24

km depending on the mode

Four simultaneous resolutions:

• 12.5m resolution dedicated to low clouds and

fog

• 25m resolution dedicated to midlevel clouds

• 100m resolutions especially designed for high

altitude ice clouds

Low power needed with direct impact on cost

reduction

Fog monitoring capability for enhanced security on airports (nowcasting)

High mobile capability allowing BASTA to be used as a calibration mean for other

radars

Simplicity and low cost opening a way to cloud radar networking

BAST

A C

lou

d R

adar

The BASTA is a 95 GHz FMCW (Frequency Modulated

Continuous Wave) Doppler radar for cloud and fog

studies. This technical option does not require high

transmission power unlike pulsed radar. Indeed the

FMCW technology is now an efficient and reliable

solution thanks to the latest developments in signal

processing techniques allowing drastic cost reduction.

New cloud Doppler radar developed by Latmos and manufactured by Meteomodem

Licence UVSQ

Meteomodem – Rue de Bessonville – 77760 URY France Tél : (33) 1.60.74.74.60 - Fax : (33) 1.60.74.74.19

www.meteomodem.com

BASTA Cloud Radar Technical specifications

Available in two different models : BASTA / BASTA mini

Multi layer clouds

Signal is not attenuated by precipitations

MAIN FEATURES

Radar type

Measure

: Bistatic FMCW, single Polarization

Doppler

: Reflectivity and Doppler velocity

Frequency

Maximum usable range

Minimum detection gate

Integration time

Observation time

Typical studies

Dimensions

Weight

Antenna type

Diameter

Beamwidth

Observation type

TRANSMITTER TYPE

CW power

Central frequency

DATA ACQUISITION /

PROCESSING SYSTEM

Sampling rate

Real-Time display system

Archive data format

: ≈ 95 GHz

: 71.5 dBz / 65.5 dBz

: ≈ 40 m depending on range resolution

: 1 to 20 s

: Continuous, long-term statistical

observations

: Cloud climatology, cloud microphysics,

satellite sensor ground verification

: 154*94*74 cm / 82*46*45 cm

: 70 kg / 35 kg

: 2 cassegrain–field parabolic dishes

: 0.60 m / 0.30 m

: ≈ 0.4 deg / ≈ 0.8 deg

: 3D scan positioner (optional)

: Solid state

: 0.5 W (1 W optional)

: ≈ 95 GHz

: ADC 16 bits / FPGA integrated to radar

: 102.4 MHz

: Local color monitor

: NetCDF

Range resolution (m)

12.5 25 100 100

Max. Distance Range (km)

12 18 18 24

Unambiguous velocity (m.s-1)

10 5 5 2.5

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