دورية أكاديمية
Retrieving wind statistics from average spectrum of continuous-wave lidar
| العنوان: | Retrieving wind statistics from average spectrum of continuous-wave lidar |
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| المؤلفون: | E. Branlard, A. T. Pedersen, J. Mann, N. Angelou, A. Fischer, T. Mikkelsen, M. Harris, C. Slinger, B. F. Montes |
| المصدر: | Atmospheric Measurement Techniques, Vol 6, Iss 7, Pp 1673-1683 (2013) |
| بيانات النشر: | Copernicus Publications, 2013. |
| سنة النشر: | 2013 |
| المجموعة: | LCC:Environmental engineering LCC:Earthwork. Foundations |
| مصطلحات موضوعية: | Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787 |
| الوصف: | The aim of this study is to experimentally demonstrate that the time-average Doppler spectrum of a continuous-wave (cw) lidar is proportional to the probability density function of the line-of-sight velocities. This would open the possibility of using cw lidars for the determination of the second-order atmospheric turbulence statistics. An atmospheric field campaign and a wind tunnel experiment are carried out to show that the use of an average Doppler spectrum instead of a time series of velocities determined from individual Doppler spectra significantly reduces the differences with the standard deviation measured using ordinary anemometers, such as ultra-sonic anemometers or hotwires. The proposed method essentially removes the spatial averaging effect intrinsic to the cw lidar systems. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1867-1381 1867-8548 |
| Relation: | http://www.atmos-meas-tech.net/6/1673/2013/amt-6-1673-2013.pdf; https://doaj.org/toc/1867-1381; https://doaj.org/toc/1867-8548 |
| DOI: | 10.5194/amt-6-1673-2013 |
| URL الوصول: | https://doaj.org/article/fbdf35e16cf54995b084b35fed9b5f44 |
| رقم الأكسشن: | edsdoj.fbdf35e16cf54995b084b35fed9b5f44 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18671381 18678548 |
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| DOI: | 10.5194/amt-6-1673-2013 |