1 / 10

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

awen
Download Presentation

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

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Wind Lidar! Code 912, Principle Investigator: Mr. Bruce Gentry NASA Academy Research Associate Jeremy Dobler

  2. 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.

  3. Backscattered Spectrum Aerosol (l-2) Molecular (l-4) Frequency Doppler Lidar Wind Measurement Concept

  4. My Contribution Work and Fun With: Optics Software Writing Electronics

  5. 355 nm Receiver Setup

  6. Moving From Larger to Smaller Systems.

  7. 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

  8. Mini-Lidar Breadboard Setup

  9. 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.

  10. 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

More Related