About The Illinois State Water Survey

Climate and Atmospheric Science

LIDAR Observations of Complex Winds

David Kristovich, Junming Wang, Sudheer Bhimireddy, Sophia Sagrestano

Researchers at the Illinois State Water Survey use two state-of-the art light detection and ranging (LIDAR) systems to measure highly-complex wind systems and dispersion of atmospheric particles. This capability has allowed for unique observations of nighttime drainage flows in the U.S. Midwest, thunderstorm winds, lake-/sea-breezes, turbulence generated by buildings and wind turbines, and the daytime intensification of vertical (upward, downward) air motions, ultimately resulting in strong convective storms.

Raymetrics Raman Lidar
University of Illinois at Urbana-Champaign (UIUC) Raymetrics Raman LIDAR 
Halo Streamline Doppler Lidar
UIUC Halo Streamline Doppler LIDAR

Recent Projects

Stable Atmospheric Variability and Transport (SAVANT)

LIDARs Objectives

  • Observations of Nocturnal Stable Layer Drainage Flow in Shallow Topography
  • Agricutural field with corn/soybeans, maximum 10 m ground elevation change
  • Smoke released into area of likely cold-air drainage as tracer for lidars

(See Hiscox et al. (2022, BAMS, in progress))

 

Observed

  • Drainage flow meanders with time
  • Non-steady, "pulsing" drainage flow
  • Complex interactions with wind changes aloft
  • Drainage flows common in downhill gullies

(click images at left for full size)


Argonne Wind Study


LIDAR Objective

  • Observe wind disturbances in wind flow due to a building and wind turbine



Observed

  • Highly-variable wakes behind building
  • Convective planetary boundary layer

(click images at left for full size)


Convection in Onshore Lake-cooled Air

LIDAR Objectives

  • Observe planetary boundary layer evolution
  • Cool, lake-breeze air from over Lake Michigan blowing inland

(click image for full size)

Observed

  • Lake breezes, growing convection
  • Complex turbulence as cold thunderstorm winds move through the area

Authors and Sponsors

David A. R. Kristovich
Illinois State Water Survey, Prairie Research Institute, University of Illinois Urbana-Champaign, IL

Junming Wang
Illinois State Water Survey, Prairie Research Institute, University of Illinois Urbana-Champaign, IL

April Hiscox
Department of Geography, University of South Carolina, Columbia, SC

Sudheer R. Bhimireddy
Illinois State Water Survey, Prairie Research Institute, University of Illinois Urbana-Champaign, IL

Jielun Sun
Northwest Research Associates

Virendra P. Ghate
Environmental Science Division, Argonne National Laboratory, Lemont, IL

V. Rao Kotamarthi
Environmental Science Division, Argonne National Laboratory, Lemont, IL

Jason M. Keeler
Department of Earth and Atmospheric Sciences, Central Michigan University, Mount Pleasant, MI

Christian H. Boyer
Department of Earth and Atmospheric Sciences, Central Michigan University, Mount Pleasant, MI

U.S. National Science Foundation

U.S. Department of Energy, Argonne National Laboratories

Illinois State Water Survey

Logos for Illinois Water Survey at University of Illinois, University of South Carolina Geology Dept., Argonne National Laboratory, Central Michigan University

Illinois State Water Survey

2204 Griffith Dr., MC-674
Champaign, IL 61820-7463
217-244-5459
Email us with questions or comments.

 

© 2022 University of Illinois Board of Trustees. All rights reserved.
For permissions information, contact the Illinois State Water Survey.
 Terms of use | Privacy Policy | Web Administrator