HARLIE Winds: Methods and Results
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HARLIE Winds: Methods and Results M. Anderson, I. Andrus, C. Egbert, and T. Wilkerson Space Dynamics Laboratory Utah State University, Logan, UT 84341 (435) 797-9611 [email protected] Presentation for Working Group on Space-Based Lidar Winds Key West, FL January 23-25,2002
description
HARLIE Winds: Methods and Results. M. Anderson, I. Andrus, C. Egbert, and T. Wilkerson Space Dynamics Laboratory Utah State University, Logan, UT 84341 (435) [email protected] Presentation for Working Group on Space-Based Lidar Winds Key West, FLJanuary 23-25,2002 - PowerPoint PPT Presentation
Transcript of HARLIE Winds: Methods and Results
HARLIE Winds: Methods and Results
M. Anderson, I. Andrus, C. Egbert, and T. Wilkerson
Space Dynamics Laboratory
Utah State University, Logan, UT 84341(435) 797-9611 [email protected]
Presentation for Working Group on Space-Based Lidar Winds
Key West, FL January 23-25,2002
* Research Support: NPOESS, NASA, and SDL
Research Objectives
• Develop methods for HARLIE wind profiling
• Compare HARLIE results with other wind sensors (sondes, GLOW, cloud imagery)
• Refine techniques for data visualization and analysis
• Develop mature HARLIE capability for wind lidar Cal/Val
HARLIE Winds: Methods and Results
Wave image of HARLIE conical scan data: Curve-fit method
Video imagery of cloud motions: Automated pattern recognition and tracking
Automated data reduction for HARLIE scans
• Plans and directions for future work
Topics
Available Wind Data Comparisons (HARGLO-2)
HARLIE(Automated)
HARLIE(Manual)
SkyCam(Automated)
Sondes GLOW
HARLIE Wave Image Wind direction and speed
Lidar return as a function of HARLIE scan angle and time
Curve fit(Manual/Automated)Phase directionAmplitude speed
HARGLO-2 Nov. 16, 2001
0
200
400
600
800
1000
1200
1400
1600
1800
0 1 2 3 4 5 6 7 8Velocity (m/s)
Alt
itu
de
(m
)
LORAN Sonde 11:00 UT to 12:37 UT HARLIE Manual 11:00 UT to 11:30 UT
HARLIE Manual 12:00 UT to 12:30 UT
-240 -180 -120 -60 0 60
Direction (deg)
HARGLO-2 Nov. 17, 2001
0
2000
4000
6000
8000
10000
12000
14000
0 5 10 15 20 25
Velocity (m/s)
Alt
itu
de
(m
)
GPS Sonde 15:15 UT to 15:56 UT HARLIE Manual 14:30 UT to 15:00 UT
HARLIE Manual 15:00 UT to 15:30 UT HARLIE Manual 15:30 UT to 16:00 UT
HARLIE Manual 16:00 UT to 16:30 UT
-90 -60 -30 0 30 60 90 120
Direction (deg)
Cloud tracking via Block Matching (camera image space)
Cloud feature identification Wind Speed and Direction(includes camera distortion correction)
Previous cloud tracking method (manual)
Test of cloud-tracking algorithm from ARM-CART site campaign Oct. 4, 2000
0
1
2
3
4
5
6
7
8
9
10
21:21:36 21:28:48 21:36:00 21:43:12 21:50:24 21:57:36 22:04:48Time
Vel
oci
ty
SC Block Matching Method (Automated) SC Feature Matching Method (Manual)
Wind Gradients March 7, 1999
0
60
120
180
240
300
360
11:00 12:12 13:24 14:36 15:48 17:00Time (hr:min)
Dir
ectio
n (d
eg) Harlie 508.5 to 954 m.
Harlie 1081.5 to 1420.5 m.
Harlie 1654 m.
Harlie 1866.5 to 2333 m.
Harlie 5048.5 to 5281.5 m.
SkyCam
Graphical Representation of the Automatic Curve Fit Routine
Intensity vs. Rotation 3/ 9/ 99 13:00 UT
1400 m
0 1 2 3 4 5 6 7 8 9
0 50 100 Rotation Number
0-9 Degrees 10-19 Degrees
Inte
nsi
ty
0-9 Degrees 10-19 Degrees
Wind Velocity and Direction17 Nov, 2001
17 Nov 2001 1700-1729 UT
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 5 10 15 20
Velocity (m/s)
Alt
itu
de
(m)
HARLIE Automatic HARLIE Manual Sky Cam
17 Nov 2001 1700-1729 UT
0
200
400
600
800
1000
1200
1400
1600
1800
2000
0 10 20 30 40 50 60 70 80 90
Direction
Alt
itu
de
(m)
HARLIE Automatic HARLIE Manual SkyCam
Wind Velocity and Direction 19 Nov, 2001
19 Nov 2001, 0930-0959 UT
0
2000
4000
6000
8000
10000
12000
14000
0 10 20 30 40
Velocity (m/s)
Alt
itu
de
(m
)
HARLIE Automatic HARLIE Manual
19 Nov 2001, 0930-0959UT
0
2000
4000
6000
8000
10000
12000
14000
180 225 270 315 360
Direction
Alt
itu
de
(m
)
HARLIE Automatic HARLIE Manual
HARGLO-2 Nov. 19, 2001
0
2000
4000
6000
8000
10000
12000
14000
0 5 10 15 20 25 30 35
Velocity (m/s)
Alt
itu
de
(m
)
LORAN Sonde 11:00 to 12:22 Harlie Manual 11:00 to 11:30 Harlie Manual 11:22 to 12:08
Harlie Manual 11:52 to 12:38 Harlie Automatic 11:30 to 12:00 Harlie Automatic 12:00 to 12:30
150 180 210 240 270 300 330 360
Direction (deg)
GLOW and HARLIE (preliminary results)HARGLO-2
17 Nov 2001, 1800-1830 UT
-30 0 30 60 90 120Horizontal Wind Direction (deg)
HARLIE - manual data extraction GLOW SkyCam
0
200
400
600
800
1000
1200
1400
1600
0 3 6 9 12Horizontal Wind Speed (m/s)
Alt
itu
de
(m
)
Status and Plans (USU)
• Automated HARLIE data reduction works• Automated cloud tracking works• These methods still undergoing critical tests• Complete reduction/comparison of
HARGLO-2 data• Additional methods being explored
(correlation/ Fourier analysis)• New measurement campaigns under
consideration
HARLIE Winds: Methods and Results
M. Anderson, I. Andrus, C. Egbert, and T. Wilkerson
Space Dynamics Laboratory
Utah State University, Logan, UT 84341(435) 797-9611 [email protected]
Presentation for Working Group on Space-Based Lidar Winds
Key West, FL January 23-25,2002
* Research Support: NPOESS, NASA, and SDL
