harlie winds: methods and results
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 PresentationTRANSCRIPT
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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
* Research Support: NPOESS, NASA, and SDL
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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
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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
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Available Wind Data Comparisons (HARGLO-2)
HARLIE(Automated)
HARLIE(Manual)
SkyCam(Automated)
Sondes GLOW
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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
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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)
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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)
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Cloud tracking via Block Matching (camera image space)
Cloud feature identification Wind Speed and Direction(includes camera distortion correction)
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Previous cloud tracking method (manual)
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Test of cloud-tracking algorithm from ARM-CART site campaign Oct. 4, 2000
0
1
2
3
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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)
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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
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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
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Wind Velocity and Direction17 Nov, 2001
17 Nov 2001 1700-1729 UT
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0 5 10 15 20
Velocity (m/s)
Alt
itu
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(m)
HARLIE Automatic HARLIE Manual Sky Cam
17 Nov 2001 1700-1729 UT
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800
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1400
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0 10 20 30 40 50 60 70 80 90
Direction
Alt
itu
de
(m)
HARLIE Automatic HARLIE Manual SkyCam
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Wind Velocity and Direction 19 Nov, 2001
19 Nov 2001, 0930-0959 UT
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14000
0 10 20 30 40
Velocity (m/s)
Alt
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(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
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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)
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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
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0 3 6 9 12Horizontal Wind Speed (m/s)
Alt
itu
de
(m
)
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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
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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
* Research Support: NPOESS, NASA, and SDL