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A One Year Comparison of 482 Mhz Radar Wind Profiler, Rs92-sgp Radiosonde and 1.5 Μm Doppler Lidar Wind Measurements : Volume 7, Issue 11 (19/11/2014)

By Päschke, E.

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Book Id: WPLBN0004000065
Format Type: PDF Article :
File Size: Pages 41
Reproduction Date: 2015

Title: A One Year Comparison of 482 Mhz Radar Wind Profiler, Rs92-sgp Radiosonde and 1.5 Μm Doppler Lidar Wind Measurements : Volume 7, Issue 11 (19/11/2014)  
Author: Päschke, E.
Volume: Vol. 7, Issue 11
Language: English
Subject: Science, Atmospheric, Measurement
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Lehmann, V., Leinweber, R., & Päschke, E. (2014). A One Year Comparison of 482 Mhz Radar Wind Profiler, Rs92-sgp Radiosonde and 1.5 Μm Doppler Lidar Wind Measurements : Volume 7, Issue 11 (19/11/2014). Retrieved from http://www.ebooklibrary.org/


Description
Description: DWD, Meteorologisches Observatorium Lindenberg – Richard Aßmann Observatorium, Lindenberg, Germany. We present the results of a one-year quasi-operational testing of the 1.5 Μm StreamLine Doppler lidar developed by Halo Photonics from 2 October 2012 to 2 October 2013. The system was configured to continuously perform a velocity-azimuth display (VAD) scan pattern using 24 azimuthal directions with a constant beam elevation angle of 75°. Radial wind estimates were selected using a rather conservative signal-to-noise ratio (SNR) based threshold of −18.2 dB (0.015). A 30 min average wind vector was calculated based on the assumption of a horizontally homogeneous wind field through a singular-value decomposed Moore–Penrose pseudoinverse of the overdetermined linear system. A strategy for a quality control of the retrieved wind vector components is outlined which is used to ensure consistency between the retrieved winds and the assumptions inherent to the employed wind vector retrieval. Finally, the lidar measurements are compared with operational data from a collocated 482 MHz radar wind profiler running in a four-beam Doppler beam swinging (DBS) mode and winds from operational radiosonde measurements. The intercomparisons show that the Doppler lidar is a reliable system for operational wind measurements in the atmospheric boundary layer (ABL).

Summary
A one year comparison of 482 MHz radar wind profiler, RS92-SGP Radiosonde and 1.5 Μm Doppler Lidar wind measurements

Excerpt
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