Lidar component will consist of: (a) Mobile lidar complex based on vehicle; (b) Lidar complex located in a tower on the roof of faculty building,

Tower

and (c) Centre for data collection, storage and analysis. Multiwave mobile lidar complex includes Shortwave differential absorption lidar for detection of gaseous substances in atmosphere, Doppler heterodyne lidar for wind direction and strength measurements, and Aerosol lidar for measurements of atmosphere aerosol parameters. Multiwave lidar complex in tower includes Doppler heterodyne lidar for wind direction and strength measurements, Aerosol lidar for measurements of atmosphere aerosol parameters.

 

The lidar complexes are compliant with European Aerosol Research Lidar Network criteria.

- Equipment description
The mobile multiwave lidar complex includes:

  • Doppler lidar for wind velocity and direction registering
  • Aerosol lidar for registering atmospheric aerosols parameters
  • Nd:YAG 355, 532, 1064 nm
  • Shortwave lidar of differential absorption for registering atmospheric gas components - UV differential absorption lidar (UV DIAL) Ti:Sapphire
  • 2-nd harmonic 350-470 nm
  • 3-rd harmonic 235-315 nm
  • The video observing system
  • Mobile platform (a car)
  • Autonomic energy supplies

 

The stationary lidar complex includes:

  • Doppler lidar for wind velocity and direction registering
  • Aerosol lidar for registering atmospheric aerosols parameters
  • Nd:YAG 355, 532, 1064 nm

 

 

Both lidar complexes are equipped with350мм телескоп

  • 350mm telescope that provides registration of weak signals 
  • Scanning system for sky sounding under various viewing directions.
  • Special computer software has been elaborated for solving inverse problems of lidar sounding, and delivered results in descriptive and convenient illustrations for an operator and manipulating the whole system.
  • Auxiliary equipment.

     

 

 

 

Двухкоординатный сканер

 

Two coordinate scanner includes:

  • Elliptic mirror 700 mm
  • Devise for mirror relief for ensure surface quality l/10
  • Angular resolution 1 min
  • Scanning speed till 20 deg/s

 

Application fields of lidar complexes

  • Global ecology, atmospheric physics: ozone content in the troposphere and stratosphere, atmospheric aerosols, small gases.
  • Meteorology: vertical profiles of wind velocity, atmospheric turbulence, cloud structure, atmospheric humidity
  • The ecology of megapolices: small gases (NOx, SOx, aerosols) content. Studying processes of natural and anthropogenic pollution of the Environment in real time with using automatic remote systems for routinely monitoring and informatics contemporary technologies.
  • Prompt diagnostics of sudden emergencies and early prevention of ecological safety threats: fires, explosions, accidents at chemical and nuclear enterprises.

 

Configuration of the mobile lidar complex

Problems Aerosol lidar UV DIAL Wind lidar
Ecology of megapolices

Global ecology, atmospheric physics

Emergency situation

Meteorology

 

Technical characteristics of lidar with aerosol and  UV DIAL channels

Parameter Value

Maximal distance

0.5 km

Minimal distance 
aerosol lidar 
UV DIAL 


till 25 km
till 3 km

Detected gases SO2, NO2, О3
Viewing angles 
Vertical direction
Horizontal direction 


-7° – 90°
±180°

Minimal angle scanning resolution

40 angular seconds

Angular velocity of scanner ration (maximal)

20 degrees/s