Wind Profile CETC

1、General Description
2、Hardware
3、Software
NRIET ®
Contents

Boundary layer WPR, Shelter
Boundary layer WPR, Mobile
Tropospheric WPR
Boundary layer WPR, Fixed
The Series of Wind Profiler
Stratospheric WPR

The layout of wind profiler in China（49 Sets）
 Boundary layer 37 sets
 Tropospheric 9 sets
 ST 3 sets
 CMA: 36 sets
 MEPC: 4 sets
 CAAC: 4 sets
And with more installation to resume in 2021

Our Wind Profiler in International Market
 Korea Meteorological Agency (KMA)
 Brunei Meteorological MET Office
 Bangladesh Meteorological Office
(Negotiation)
 Myanmar DCA (Negotiation)
 Military Airports (Confidential)

 KMA compared our wind
profiler’s measured data against
a radionsonde data

 Comparison Result – Very High Accuracy

Our Business Model
 International Sales with Local Support
 Local Partner is Equipped with Technical Know-How
 Transfer of Technology
 Stocking of Spares (Ensure Quick Response Time)
 Joint System Development (Feedback from Local
Support)

Boundary Layer WP
• Applications:
•Terminal Airport Weather
•Air Quality
•Mesoscale Networks
•Atmospheric Research
• Tactical Artillery/Ballistics
• Test Range Support
• Space Vehicle
Launch/Landing

Applications
Aviation, Terminal Area Weather Support
• Wind profilers are extremely well suited to provide high
temporal and spatial upper-air data for airports that are
affected by complex terrain. These systems are used to
monitor the upper level flow above the terminal area in
support of wind shear and turbulence monitoring

Doppler Beam Swinging (DBS)
• Radial scattered velocities measured
with one vertical and 2 (4) off-zenith
beams
• Beam-pointing sequence is repeated
every 1-5 minutes
• Local horizontal uniformity of the
wind field is assumed
• Signal processing involves:
– coherent integration of the
complex video signal
– spectral analysis
– incoherent integration
– isolation of signal spectrum from
noise spectrum
– velocity calculation and temporal
averaging of radial velocities
– calculation of wind profiles

CLC-11 Wind Profiler Diagram
Radar
Processor
Antenna
Monitor/
control
Receiver
Digital
IF
IF
CLK
ComputerT/R1 ~ TRn
Power Supply Unit
HUB
EtherNet
Feed Network
DSP Unit
Digital
data
processor
Beam Control unit
RASS

CLC-11 wind profiler Features
3
Active phased array antenna
Employing active phased array antenna enables us to measure
the wind profiles every one minute with its high-speed beam
scanning capability. And it assures us that stable and accurate
measurements are carried out even under high winds such as
typhoons, that were unattainable by radars using conventional
reflector type antennas.
Pulse compression technique
Employing the 16-bits pulse compression technique resulting in
the improvement of 12dB of the received echo signal to noise
ratio (S/N) compared to single pulse radars, enables us to
measure winds at high altitudes.

CLC-11-SE
Boundary Layer Wind Profiler
 Conceptualized in 2000
 Designed for the Terminal Airport
Weather Operations
 Provide 24x7 Vertical Wind Profile
Information
 Detect Potential Severe Weather
Condition
 Foundation for other wind profiler
models

System Specifications
Item Specification
Range 60m to 6km
Resolution Minimum 30m (Configurable)
Operating Frequency 1290Hz
Horizontal/Vertical Wind Component -120 to 120 m/s / -35 to 35 m/s
Wind Speed Accuracy < 1ms
Wind Direction Accuracy < 10°
Wind Averaging Time 1 to 60 Min
Warranty & Support 3 Years Inclusive Parts
RASS YES

Antenna
• Electrically switched phase delays
between the micro-patch antenna
elements change the pointing
direction.
• Each of the planar panels is
protected from direct exposure by
integral radome.
• The antenna used active phased array technique and consists of
planar micro-patch array panels with a sidelobe reduction screen.
• The antenna panels are oriented horizontally while the antenna
beams point to four orthogonal oblique directions as well as to
zenith.

Optional RASS
• Radio Acoustic Sounding System (RASS)
– provides profiles of temperature
– achieved by transmitting a strong but short
acoustic "beep" vertically upwards
– tone burst travels as a compression wave with
the speed of sound upwards in the atmosphere
– wind profiler measures the speed of propagation
of the sound burst
– since the speed of sound depends on the air
temperature, virtual temperature can be
computed from the received signal

Radar Antenna With RASS Noise Sources

Software Modules
Integrated Airport Warning System
LIDAR RADAR
Wind
Profile
Lightning AWOS
Volcanic
Ash

Software Modules
• Single Airport Warning Visualisation System Capable of
Ingesting the sub-systems data
• Quick Prompt of Alerts & Warnings Detected by Sub-Systems
• Minimise the needs of monitoring multiple systems
• Integrated to Flight Information System offering
Unprecedented clear traffic conditions + meteorological
information
• Operators focuses on monitoring while systems tracking the
threats
• Integrated Alert Dissemination Capabilities
• SMS & Mobile App

Software Modules

Software Modules
(Prototype)

Software Modules
- 3D Realtime Cloud & Flight Info Display

 WPR Local Control Software
(WPRLCS)
 WPR Control and Data Centre
(WPRCDC)
 WPR Remote Control
Terminal (WPRRCT)
 WPR Product Display
Terminal (WPRPDT)
Wind Profiler Software

Standard Data Output
• From Radar Computer
– Raw Data types:
• Time Series
• Spectra
• Moments
– Wind Data and virtual temperature
• BUFR Wind (WMO format)
• CNS
• CDF
• Cn2
– With Optional Monitor
• Status logs
• Event logs

Wind Shear Alert Module
• Fully Automatic
• Display Warning on Vertical Wind Shear Warning
• Combining Multiple Runways Display
• Configurable Vertical Profile (Resolution)
• Mobile Device Friendly
• Integrated to SMS/Telegram Messaging (Optional)

Wind Feather Picture ( barbs )
Wind Vector Picture

Wind Feather Picture ( barbs )

45
2014/09/15-16, Typhoon, Hainan

Wind Profile CETC

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