| DOI: | 10.1002/2015GL066729
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| 论文题名: | High-resolution wind speed measurements using actively heated fiber optics |
| 作者: | Sayde C.; Thomas C.K.; Wagner J.; Selker J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8430
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| EISSN: | 1944-8161
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| 出版年: | 2015
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| 卷: | 42, 期:22 | | 起始页码: | 10064
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| 结束页码: | 10073
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| 语种: | 英语
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| 英文关键词: | distributed measurements
; DTS
; fiber optics
; temperature
; turbulence
; wind speed
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| Scopus关键词: | Air
; Anemometers
; Fiber optics
; Heat transfer
; Temperature
; Turbulence
; Correlation coefficient
; Distributed measurements
; Distributed temperature sensing systems
; DTS
; Measurement of velocity
; Measuring temperature
; Wind speed
; Wind speed measurement
; Wind
; air temperature
; anemometer
; cable
; correlation
; estimation method
; fiber optics
; heat transfer
; measurement method
; spatial resolution
; temperature anomaly
; transect
; turbulence
; wind velocity
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| 英文摘要: | We present a novel technique to simultaneously measure wind speed (U) at thousands of locations continuously in time based on measurement of velocity-dependent heat transfer from a heated surface. Measuring temperature differences between paired passive and actively heated fiber-optic (AHFO) cables with a distributed temperature sensing system allowed estimation of U at over 2000 sections along the 230 m transect (resolution of 0.375 m and 5.5 s). The underlying concept is similar to that of a hot wire anemometer extended in space. The correlation coefficient between U measured by two colocated sonic anemometers and the AHFO were 0.91 during the day and 0.87 at night. The combination of classical passive and novel AHFO provides unprecedented dynamic observations of both air temperature and wind speed spanning 4 orders of magnitude in spatial scale (0.1-1000 m) while resolving individual turbulent motions, opening new opportunities for testing basic theories for near-surface geophysical flows. Key Points Actively heated fiber optics distributed temperature sensing can measure wind speed Wind speed was measured simultaneously at >2000 locations with 0.375 m and 5.5 s resolutions Excellent agreement with independent sonic anemometers point measurements. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956950263&doi=10.1002%2f2015GL066729&partnerID=40&md5=579afd6f7d93684efe04c1aca3dc8839
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8046
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Biological and Ecological Engineering, Oregon State University, Corvallis, OR, United States
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| Recommended Citation: | |
Sayde C.,Thomas C.K.,Wagner J.,et al. High-resolution wind speed measurements using actively heated fiber optics[J]. Geophysical Research Letters,2015-01-01,42(22).
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