slide1
Download
Skip this Video
Download Presentation
HALO-SR NARVAL Meeting 12./13. January 2012

Loading in 2 Seconds...

play fullscreen
1 / 24

HALO-SR NARVAL Meeting 12./13. January 2012 - PowerPoint PPT Presentation


  • 72 Views
  • Uploaded on

HALO-SR NARVAL Meeting 12./13. January 2012. University of Leipzig / FZ Jülich. Manfred Wendisch, Birger Bohn, André Ehrlich, Clemens Fricke. Scientific purpose : Remote sensing of clouds. Cloud optical thickness. Particle effective diameter. Liquid. Mixed-phase. Ice.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' HALO-SR NARVAL Meeting 12./13. January 2012' - malina


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

HALO-SR

NARVAL Meeting 12./13. January 2012

University of Leipzig / FZ Jülich

Manfred Wendisch, Birger Bohn,

André Ehrlich, Clemens Fricke

slide2

Scientific purpose: Remote sensingofclouds

Cloud optical

thickness

Particle

effective diameter

Liquid

Mixed-phase

Ice

Cloud phase

slide3

Scientific purpose: Remote sensingofclouds

Measurementsofupwellingradiancedata( )

Radiativetransfercalculations

problems

,

spatialinhomogenity, heterogeneoussurfacealbedo

slide4

TECHNO Mission Layout:

  • cooperationbetween FZ Jülich and LIM HALO-SR
  • Measured variable (1): Radiance
  • nadir, viewing angle = 2°
  • spectralrange
    • VIS: 350-1000 nm
    • NIR: 1000-2000 nm
  • FWHM: 1.5 nm (VIS)
  • 8-9 nm (NIR)

remote sensing

slide5

TECHNO Mission Layout:

  • cooperationbetween FZ Jülich and LIM HALO-SR
  • Measured variable (2): actinicfluxdensity
  • bothhemispheres
  • spectralrange
    • UV/VIS: 270-650 nm
  • FWHM: 1.5 nm

Photolyticfrequencies

slide10

Accreditation & technicalsituation:

  • spectrometersgotadmittancerelatedtothe TECHNO Mission layout
    • nomoregeneralaccreditation/certificationnecessaryatthispoint– „revision“ only
  • experiencesfrom TECHNO Mission offernoproblemsexceptfurtherstabilitychecks
slide11

targetapertureplates - top:

Techno Mission (ApT-5)

NARVAL (ApT-5)

slide12

targetapertureplates - bottom:

Techno Mission (ApB-4)

NARVAL (ApB-8)

slide13

rackpositionhastobetransferredtotherear

  • operatorseat not essential
  • (remote controlpossible)
  • Max. distance:
  • opticalinletbottom – spectrometer = 9m
  • opticalinlet top – spectrometer =t.b.a.
  • calibrationon ground (ground power needed)
slide14

Rackposition:

Techno Mission (pos. 02)

Narval (target: pos. 09/16/18)

slide15

19“ Inlet

  • ~ 40kg weight
  • chassisradiance:
    • 448x127x450 mm (WxHxD)
    • 3U
    • 3A x 28V
    • 40W (max. 80W)
  • chassisactinicfluxdensity:
    • similartoradiance
    • 3A x 28V
    • 3U
    • 40W (max. 85W)
  • chassis power distributionunit
    • 1U
slide16

Thanks

foryour

attention !

slide20

Mixture

Hexagonal

Plates

Solid columns

Roughaggregates

Icespheres

(Eichler, 2009)

[email protected]

slide21

Mixture

Hexagonal

Plates

Solid columns

Roughaggregates

Icespheres

(Eichler, 2009)

[email protected]

slide23

downward:

upward:

Definitions – radiativequantities:

Iλ(W m-2 nm-1sr-1)

  • spectral solar radiance

Remote sensing

  • spectral solar actinicfluxdensity

Fact, λ(W m-2 nm-1)

Photolyticfrequency

Motivation

HALO

TECHNO Mission

Messbeispiele & Scientific Outlook

ad