3D Lidar Measurement of Boundary Layer Aerosols and Wind

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姓名

羅席戴(Novita Rosyida) 查詢紙本館藏

畢業系所

物理學系

論文名稱

3D Lidar Measurement of Boundary Layer Aerosols and Wind
(3D Lidar Measurement of Boundary Layer Aerosols and Wind)

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摘要(中)

雷射雷達近來普遍用於監測大氣中的氣膠與各種物質，由接收散射訊號，藉此得知氣膠的分布及結構。由於氣膠會因各種天氣因素而產生不同的物理特性，光達對於大氣邊界層的監測特別有用。本論文藉由探測氣膠的非均勻分佈特性，推測風向風速的初步結果。實驗中使用光達針對五個定點做掃描，並且利用氣膠的分布相關分析(correlation method)位置差異試圖判定風速，之後再由延遲係數來決定徑向風向，負值表示風向正接近觀測者；而正值表示風向正遠離觀測者。從三天的資料顯示，有將近百分之四十的資料並沒有顯示出氣膠的位置差異，因此無法作分析比較，推論可能是小尺度的氣膠分布無法解析及分布容易改變的特性所造成的。

摘要(英)

The lidar investigations of the processes in the atmosphere, conducted in the present work, are based on the scattering by the atmosphere aerosol structure especially in the boundary layer. The aerosol inhomogeneity represents variations in space and time of aerosol microphysical characteristic that influence by turbulence, stratification of meteorological parameter and synoptic pattern as well. In this study correlation method is used to detect and trace aerosol inhomogeneities to determine the wind velocity. The measurement is performed by using scanning lidar in five angle position with fixed azimuth and elevation angle. For three days measurement around 40% of data didn’t show the aerosol inhomogeneity pattern, this may due to the small scale of aerosol distribution and the variability in the aerosol distribution pattern. This work is a preliminary result to determine the radial wind component and the direction is determined from the lag value, while the value is positive means the wind is close to the observer and a negative value means the wind is far away from the observer.

關鍵字(中)

★ correlation method
★ wind
★ aerosol inhomogeneities
★ elastic lidar

關鍵字(英)

★ correlation method
★ wind
★ aerosol inhomogeneities
★ elastic lidar

論文目次

ABSTRACT I
ABSTRACT II
ACKNOWLEDGMENTS III
TABLE OF CONTENT IV
LIST OF FIGURE VI
LIST OF TABLE VII
CHAPTER 1 1
INTRODUCTION 1
1.1. BACKGROUND 1
1.2. WIND SPEED AND WIND DIRECTION 3
1.3. GLOBAL WIND 5
a. Trade winds 6
b. Westerlies wind 7
c. Polar winds or Polar Easterlies winds 7
1.4. LOCAL WIND 8
a. Land and sea breeze 8
b. Mountain and valley breeze 8
c. Ketabatic winds 9
1.5. MONSOON WINDS 9
1.6. BOUNDARY LAYER STRUCTURE 11
1.7. TROPOSPHERIC AEROSOL 13
1.8. REVIEW OF LIDAR STUDIES ON WIND MEASUREMENT 15
1.9. MOTIVATION 17
1.10. OBJECTIVE 18
1.11. THESIS LAYOUT 18
CHAPTER 2 19
EXPERIMENTAL TECHNIQUE AND DATA ANALYSIS 19
2.1. INTRODUCTION TO LIDAR 19
2.2. OR-3 SCANNING LIDAR SYSTEM 20
a. Transmitter 20
b. Receiver 21
c. Data acquisition and signal processing 22
2.3. LIDAR EQUATION 22
2.4. AEROSOL BACKSCATTERING COEFFICIENT AND FRACTIONAL DEVIATIONS 24
2.5. POINT CORRELATION COEFFICIENT METHOD 26
2.6. WIND SPEED AND WIND DIRECTION MEASUREMENT 28
2.7. MODEL CALCULATION 29
CHAPTER 3 32
BACKGROUND OF WEATHER IN CHUNG LI 32
3.1. CLIMATE IN TAIWAN 32
3.2. AIR QUALITY IN TAIWAN ACCORDING TO PM-10 MONTHLY AVERAGE DISTRIBUTION 34
3.3. GENERAL BACKGROUND OF WIND SHEAR OR WIND GRADIENT IN BOUNDARY LAYER 36
3.4. AN OVERVIEW OF SURFACE WIND CONDITION IN CHUNG-LI AREA 43
RESULT AND DISCUSSION 46
4.1 INTRODUCTION 46
4.2 DETERMINATION OF AEROSOL INHOMOGENEITIES 48
4.3. WIND ANALYSIS USING MAXIMUM CORRELATION 50
4.4. DISCUSSION 56
CHAPTER 5 59
CONCLUSION 59
5.1. CONCLUSION 59
5.2. FUTURE WORK 59
REFERENCES 60
APPENDIX 1. 62
APPENDIX 2. 64

參考文獻

Arbogast, Alan F. 2011. Discovering Physical Geography. John Willey & Sons. Michigan. USA.
Armstrong, R.L. 1976. Detection of Aerosol Atmospheric Flow using a transit-time Lidar Velocimeter. Applied Optics. Vol 15, No.11.
Buttler et al. 2001. Remote Sensing of Three Dimensional Winds with Elastic Lidar: Explanation of maximum cross Correlation Method. Boundary Layer Meteorology 101. Page 305-328.
Buttler, Willian T., Eichinger, William E. 1994. Wind Speed Measurement with Scanning Elastic Backscatter Lidar. 21st Conference on Agricultural and Forest Meteorology. San Diego. California.
Chen, T. J., H.J. Chen, 1987. Study on Large Scale Features of Dust Storm System in East Asia. Meteorology Research. Vol.10, 57-79.
Duce, R. A. et al. 1980. Long Range Atmospheric Tranport of Soil Dust from Asia to the Tropical North Pacific: Temporal Variable. Science. Vol. 209. 1522-1524.
Eloranta, Edwin E. 2005. High Spectral Resolution Lidar. Wandinger, Ulla, Lidar Range Resolve Optical Remote Sensing (144-163). Springger.
Eloranta et al. 1975. The Determination of Wind Speed in the Boundary Layer by Monostatic Lidar. Journal of Applied Meteorology. Vol. 14.
Heintzenberg et al. 1990. Tropospheric Aerosol. Firor, John, The Changing Atmosphere a Global Challenge. Yale University Pers.USA.
Hooper, Wiliam P. Eloranta, Edwin W. 1985. Lidar Measurement of Wind in the Planetary Boundary Layer: The Method, Accuracy and Result From Joint Measurement with Radiosonde and Kytoon. Journal of Climate and Applied Meterology. Vol. 25.
Kolev, Ivan et al. 1988. Lidar Determination of Wind by Aerosol Inhomogeneities: Motion Velocity in Planetaru Boundary Layer. Applied Optics. Vol. 27, No. 12.
Kovalev, Vladimir A. 2004. Elastic Lidar. John Willey & Sons. Canada.
Maiman, H.T.1960. Stimulated Optical Emission in Ruby. Nature,187,493-494.
McClung J.F, Helward W.R. 1962. Giant Optical Pulsation from Rubby. J. Appl. Phys,33,828.
Murayama, T., et al. 2001. Ground-based network observation of Asian dust events of April 1998 in East Asia. Journal of Geophysical Research 106, 18345–18359.
Sasano, Y. et al. 1982. Horizontal Wind Determination from the Displacement of Aerosol Distribution Pattern Observed by Scanning Lidar. Journal of applied meteorology. Vol.21.
Sroga et al. 1980. Lidar Measurement of Wind Velocity Profiles in the Boundary Layer. Journal of Applied Meteorology. Vol. 19.
Stull, Roland B. 1988. An Introduction to Boundary Layer Meteorology. Kluwer Academic Publisher. Netherland.
Thomas et al. 2007. A Wind Speed and Fluctuation Simulator for Characterizing the wind Lidar Correlation Method. IEEE International Geoscience and Remote Sensing Symposium (2779-2782).
Wandinger, Ulla. 2005. Introduction to Lidar. Wandinger, Ulla, Lidar Range Resolve Optical Remote Sensing (1-18). Springger.
Zuev, V.E. et al. 1997. Application of Correlation Lidar Data to Modeling and Prediction Wind Component. Applied Optic. Vol 36, No.9.

指導教授

倪簡白(Jan Bai Nee)

審核日期

2012-6-8

推文