| Note |
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The operation of AMALi requires experienced personnel on board the aircraft. AMALi VQ580 is a CLASS 3B IV Laser Product. Direct exposure Exposure to the laser radiation is very dangerous and may cause severe damage to eyes and skin. This even applies to diffuse radiation. DO NOT LOOK INTO THE TRANSMITTER LENS! DO NOT POINT THE TRANSMITTER LENS AT PEOPLES EYESCONTACT WITH THE LASER BEAM MUST BE AVOIDED AT ALL TIMES!
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Summary
| Sensorweb integration |
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| urn | aircraft:bt-67:amali_01 |
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| contenttype | Summary |
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The Airborne Laser Scanner with Online Waveform Processing (high-accuracy) provides high speed, non-contact data acquisition using a narrow near-infrared laser beam and a fast line scanning mechanism. It was especially designed to measure on snow and iceMobile Aerosol Lidar (AMALi) provides profiles of the total backscatter at two wavelengths, from which aerosol and cloud properties are derived. It measures also the linear depolarization of the backscattered return, allowing for the discrimination of thermodynamic cloud phase and the identification of the presence of non-spherical aerosol particles. A single laptop computer fully controls the laser, transient recorders, detectors, and data acquisition, including storage, processing, quick-look evaluation and display programs utilizing LabVIEW software. |
| Sensorweb integration |
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| urn | aircraft:bt-67:amali_01 |
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| contenttype | Metadata |
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Riegl| VQ580 | n/alaser scanner |
Contacts
| Sensorweb integration |
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| urn | aircraft:bt-67:amali_01 |
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| contenttype | Contacts |
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Veit Helm--Institute| Editor | | Veit Helm | Alfred-Wegener-Institute | Device Contact | |
Components
| Institute, Helmholtz Centre for Polar and Marine Research | Device Contact |
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Components
The AMALi system comprises the optical unit with a Nd:YAG Laser configured by the company Big Sky Laser, Montana, USA. Additionally, the operation of AMALi requires the installation of a laser control unit, a data aquisition unit and a power distribution. The device is handled with an operator PC. Quartz glass windows are installed in the cabin roof or in the underfloor compartment depending on installation direction.
Specifications of AMALi (without mounting)
Position
| Sensorweb integration |
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| urn | aircraft:bt-67:amali_01 |
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| contenttype | SubdevicesLocalFrame |
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| | Name | Model | Type |
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| Laser Scanner VQ580 | VQ580 | laser scanner |
| Laser Scanner VQ580 | VQ580 | laser scanner |
| Laser Scanner VQ580 | VQ580 | laser scanner |
| Info | The AMALi can be installed upward or downward looking. Quartz glass windows are installed on the cabin roof and on an underfloor opening. The measuring unit is fastened to the cabin floor. Electronics are installed in a rack. | | X | 0.0 none
(no description given) | | Y | 0.0 none
(no description given) | | Z | 0.0 none
(no description given) |
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Data logging, storage and archiving
...
| Sensorweb integration |
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| urn | aircraft:bt-67:amali_01 |
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| contenttype | Parameters |
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Sensor | O2ARegistry Output Type | Unit |
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surface scans | height| aerosol attenuated backscatter at 532 nm | backscatter strength | none | | aerosol attenuated backscatter at 355 nm | backscatter strength | none | | depolarisation ratio at 532 nm | backscatter strength | none |
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Rawdata storage on board
| Metadata (Metadata Plugin) |
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During flight AMALi data are stored on an external PC with a specific LabVIEW software. |
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Data archiving on land
| Metadata (Metadata Plugin) |
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After the flight AMALi data are downloaded from the PC and are made accessible via the external devices file system of the land Data Managment System (DMS). |
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Documentation
| Sensorweb integration |
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| urn | aircraft:bt-67:amali_01 |
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| contenttype | Resources |
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