UVLidar : a powerful tool for Eyjafjll ash operational survey from - - PowerPoint PPT Presentation

uv lidar a powerful tool for eyjafj ll ash operational
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UVLidar : a powerful tool for Eyjafjll ash operational survey from - - PowerPoint PPT Presentation

UVLidar : a powerful tool for Eyjafjll ash operational survey from groundbased and airborne measurements


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SLIDE 1

UVLidar : a powerful tool for Eyjafjöll ash operational survey from groundbased and airborne measurements

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SLIDE 2

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SLIDE 3

Operational period (from 14th April to 27th May 2010)

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SLIDE 4

N2Raman channel Elastic // and ⊥ ⊥ ⊥ ⊥ Laser emission

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SLIDE 5

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Volcanic ash plume Planetary boundary layer

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Depolarization ratio

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SLIDE 6

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Lidar network with 9 (potentially 14) operative stations in Europe providing:

  • 2-D images of the attenuated backscatter (//,⊥

⊥ ⊥ ⊥ channels)

  • Vertical resolution: 15 m between 0.15 km -15 km
  • Time resolution 30s

Leonet stations

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SLIDE 7

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SLIDE 8

Falcon 20 SAFIRE Electronic system

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SLIDE 9

First operational flight with the lidar onboard the Falcon 20 !"(("ABC

Altitude (m) Apparent backscattering coefficient ⊥ ⊥ ⊥ ⊥ (10-3 km-1.sr-1)

Volcanic ash <!99A!22!G<'!&!"''!" Strasbourg

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Caen Amboise Strasbourg Toulouse Boulogne- sur-Mer Dieppe

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SLIDE 10

Volcanic ash ~ 250 350 5g/m3

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Apparent backscattering coefficient ⊥ ⊥ ⊥ ⊥ (10-3 km-1.sr-1)

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SLIDE 11

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