Some unpublished tls results
This presentation is the property of its rightful owner.
Sponsored Links
1 / 12

Some Unpublished TLS Results*: PowerPoint PPT Presentation


  • 67 Views
  • Uploaded on
  • Presentation posted in: General

Some Unpublished TLS Results*:. Evolution of MH, h min-shear , h max-N 2 on TLS Profiles Compare MH, h min-shear , h max-N 2 on a 2-day scatter plot Examine NBL “top” using TLS( ε ) and Tower (  w 2 ) Upside Down Boundary Layer (TLS + Tower Profiles)

Download Presentation

Some Unpublished TLS Results*:

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


Some unpublished tls results

Some Unpublished TLS Results*:

  • Evolution ofMH, hmin-shear, hmax-N2 on TLS Profiles

  • Compare MH, hmin-shear, hmax-N2 on a 2-day scatter plot

  • Examine NBL “top” using TLS(ε) and Tower (w2 )

  • Upside Down Boundary Layer (TLS + Tower Profiles)

  • Hi-Resolution Entrainment Region Measurements

  • Residual Layer (can be a pretty dynamic region)

  • TLS Profile Showing King-Air Generated Turbulence

  • Lidar, Sodar, TLS Comparison Profiles

JAS (accepted) JAM (in final revision)

* B. Balsley, R. Frehlich, M. Jensen, Y. Meillier


Tls analysis techniques

TLS Analysis Techniques:


Sbl evolution 10 20 99 0707 1216 ut mh o h min shear h max n 2

SBL* Evolution: (10/20/99, 0707-1216 UT) MH (-o-),hmin-shear (____), hmax-N2(……)

*Traditional Boundary Layer

(Profile separation ~ 30 min}


Relationship between mh h min shear h max n 2 oct 14 th 20 th

Relationship Between MH, hmin-shear, hmax-N2 (Oct 14th & 20th)


10 20 99 0719 ut mh estimates via tls and tower w 2

10/20/99 (0719 UT): MH Estimates via TLS(ε) and Tower (w2 )

w(t) at 20m & 55m

TLS

Tower

MH

MH


10 20 99 0850 ut mh estimates via tls and tower w 2

10/20/99 (0850 UT): MH Estimates via TLS(ε) and Tower (w2 )

TLS

Tower

w(t) at 20m & 55m

??

MH


Some unpublished tls results

CASES (10/14/99) 10.8 UT: High Vertical Resolution (~0.25 m) Energy Dissipation Rate (ε) Profiles in the Entrainment Region at 26 Sec. Intervals

Energy Dissipation Rate (ε)


10 14 99 0200 1300 ut mh h min shear h max n 2 vs time

10/14/99 0200-1300 UT MH, hmin-shear, hmax-N2 Vs Time


10 14 99 0849 1203 ut examples of w 2 w 3 wt

10/14/99 (0849-1203 UT):Examples of ε, w2, <w’3> & <wt’>


The residual layer not a passive region 10 21 99 0715 ut 4 sensors 3m separation

The “Residual” Layer: Not a Passive Region;10/21/99 ~0715 UT (4 sensors; 3m separation)

103

102


10 20 99 example of a king air exhaust trail advected through a tls profile

10/20/99 Example of a King-Air Exhaust “Trail” Advected Through a TLS Profile

1000 times stronger than

ambient turbulence level


Some unpublished tls results

Compare Profiles: TLS (black), Sodar (blue), Lidar (green, red)

(The Pentagon 21 May 2004)


  • Login