| Note |
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Operation of the EM Bird requires experienced personnel on board the aircraft.
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Summary
| Sensorweb integration |
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| urn | aircraft:bt-67:em_bird |
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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 iceEM-Bird is a digital frequency-domain electromagnetic-induction (EM) system, dedicated for measurements of sea ice thickness. It is a technique that can achieve profiles of several kilometer length. For the airborne measurements the EM Bird is dragged along a tow rope below the aircraft at low altitude over the ice. It can be winch up and down for transit lines, take off and landing. |
| Sensorweb integration |
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| urn | aircraft:bt-67:em_bird |
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| contenttype | Metadata |
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Contacts
| Sensorweb integration |
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| urn | aircraft:bt-67:em_bird |
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| contenttype | Contacts |
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Veit Helm--Institute| Editor | | Institute, Helmholtz Centre for Polar and Marine Research | Data Scientist | | Jan Rohde | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research |
Veit Helm | Alfred-Wegener-Institute |
Components and Specifications
The EM-Bird system comprises the EM-Bird itself, which is lowered to the ice during flight. For deployment a winch is installed inside the aircraft. Power supply unit and operator PC are located on the winch.
Specifications of the EM-Bird (without mounting)
Position
| Sensorweb integration |
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| urn | aircraft:bt-67:em_bird |
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| contenttype | SubdevicesLocalFrame |
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| Info | The EM Bird is fastened to the fuselage within a cage. During flight it can be lowered and towed closely above ground. The winch and data aquisition are installed in the cabin. | | X | 0.0 none
(no description given) | | Y | 0.0 none
(no description given) | | Z | 0.0 none
(no description given) |
| Name | Model | Type |
|---|
| Laser Scanner VQ580 | VQ580 | laser scanner | | Laser Scanner VQ580 | VQ580 | laser scanner | Laser Scanner VQ580 | VQ580 | laser scanner |
Data logging, storage and archiving
...
| Sensorweb integration |
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| urn | aircraft:bt-67:em_bird |
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| contenttype | Parameters |
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Sensor | O2ARegistry Output Type | Unit |
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surface scans | height | none| sea ice thickness | sea ice thickness | m |
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Rawdata storage on board
| Metadata (Metadata Plugin) |
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| During flight the EM Bird data are stored on an external PC. |
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Data archiving on land
| Metadata (Metadata Plugin) |
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After the flight EM Bird 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:em_bird |
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| contenttype | Resources |
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