Code 912 principle investigator mr bruce gentry nasa academy research associate jeremy dobler
Download
1 / 10

Code 912, Principle Investigator: Mr. Bruce Gentry NASA Academy Research Associate Jeremy Dobler - PowerPoint PPT Presentation


  • 104 Views
  • Uploaded on

Wind Lidar!. Code 912, Principle Investigator: Mr. Bruce Gentry NASA Academy Research Associate Jeremy Dobler. Why Study Winds?. Winds are the most important variable studying dynamics and transport in the atmosphere.

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 'Code 912, Principle Investigator: Mr. Bruce Gentry NASA Academy Research Associate Jeremy Dobler' - awen


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
Code 912 principle investigator mr bruce gentry nasa academy research associate jeremy dobler

Wind Lidar!

Code 912, Principle Investigator:

Mr. Bruce Gentry

NASA Academy Research Associate

Jeremy Dobler


Why study winds
Why Study Winds?

  • Winds are the most important variable studying dynamics and transport in the atmosphere.

  • Wind measurements are critical to improvement of numerical weather prediction models.

  • Global wind measurements are essential to NASA’s Earth Science Enterprise mission.

  • They can be used to study planetary atmospheric dynamics.

  • Commercial and military aircraft would benefit from clear air wind shear detection as well.


Doppler lidar wind measurement concept

Backscattered Spectrum

Aerosol (l-2)

Molecular (l-4)

Frequency

Doppler Lidar Wind Measurement Concept


My contribution
My Contribution

Work and

Fun With:

Optics

Software Writing

Electronics




Miniature dual frequency lidar components
Miniature Dual-Frequency Lidar Components

  • Solid Fabry-Perot etalon

  • 95% reflectivity @ 860 nm

  • 15 mm gap

  • Finesse ~ 61 FSR ~ 6.66 GHz

  • Semi-Conducting Diode

  • Laser (AlGaAs)

  •  = 852.2 nm

  • Power ~ 150 mW CW



Future work
Future Work!

  • Complete software interface to automate the modulation of the laser and lock the signal on the edge of the Fabry-Perot etalon filter.

  • Integrate breadboard system into a mobile container.

  • Verify velocity measurements on a hard target in lab

  • Take actual atmospheric data in the field demonstrating the mini-lidar system.


Thank you to
Thank You To:

  • The Wisconsin Space Grant Consortium

  • Goddard Space Flight Center University Programs and the Director’s Discretionary Fund.

    Also to:

  • The Academy Staff and all of the participants of this program.

  • The Staff and Faculty at UW-L


ad