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LiDAR systems

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Stream Line - cloud & boundary layer 
Research LiDAR

Stream LinePro - Boundary layer profiler Stream LineWind-Pro - mast replacement wind profiler Stream LinePro-Lo - Mast replacement and more 'Vector' - Full waveform, all-sky 3-D laser imager

The Halo Photonics pulsed Doppler LiDAR system is a unique, state-of-the-art autonomous instrument for atmospheric remote sensing. The systems are suited to boundary layer meteorology, cloud measurements, wind profiling and air quality monitoring - all in one unit.
Features:
- Field deployable
- Turn key operation
- Eye safe (Class 1M)
- Modular construction
- Low power, air cooled
- Data logged in ASCII
- Real-time data acquisition to 10km
- Arbitrary scan patterns
- UPS power cut protection
- Mature, reliable technology
- Extended temperature option
- Flexible software
- Remote monitoring/control 
- UDP data broadcasting
- Gate overlapping - 3m range resolution.
- Email alerts
- Step/stare and continuous movement data acquisition
- Optional GPS

Typical applications:
- Cloud studies:
- - Doppler ceilometer
- - Cloud convection
- Wind profiling [Example]
- Air quality monitoring
- Pollution dispersion
- Gust monitoring
- Wind shear monitoring
- Boundary layer meteorology

- Airports:
- Wind profiles
- Cloud base mapping
- Visibility
- Vortex detection and tracking

- University research:
- PBL mapping
- Eddy dissipation rate
- Cloud research
- Water/ice discrimination

- Environmental monitoring:
- City pollution mapping
- Air quality assessment
- Pollution dispersion
- Forest fire detection and tracking

- Meteorology:
- Wind profiling
- Visibility
- Boundary layer mixing height
- Scanning ceilometer

The Stream Line unit is an autonomous, turn-key LiDAR system incorporating an all-sky scanner housed in an environmental enclosure. These units are rugged and reliable. Some have been mounted in vehicles, and others have been deployed in the Sahara desert and in other remote regions of the world.

 

Wind flow data - showing the flow over a 2km diameter 10 degree elevation. Each frame took 23 seconds to capture.

 

A plot showing continuous scanner mode (csm), where data acquisition takes place at 100% duty cycle as the scanner is moving. It is possible to define a series of waypoints for the scanner to follow, whilst the acquisition is running at up to 10Hz. The plot shown is updated in real-time whilst acquisition is taking place, and resembles a RADAR type plot, updating as the scanner sweeps.

 
 

This picture shows a system owned and operated by San Jose University. The LiDAR is mounted in the back of a truck and is used to monitor wild fires.

An RHI scan showing a flow reversal with increasing height. The cloud base was at 1.5km

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