AMTD

Atmospheric Measurement Techniques Discussions

AMTD

Atmos. Meas. Tech. Discuss.

1867-8610

Göttingen, Germany

10.5194/amt-2020-321

Uncertainty model for dual-Doppler retrievals of wind speed and wind direction

Vasiljević

Nikola

https://orcid.org/0000-0002-9381-9693

¹ Courtney

Michael

¹ Pedersen

Anders Tegtmeier

https://orcid.org/0000-0002-9132-1357

Technical University of Denmark – DTU Wind Energy, Frederiksborgvej 399, Building 118-VEA, 4000 Roskilde, Denmark

12263

Innovationsfonden

7046-00021B

17 08 2020

2020 1 25

2020

This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/

This article is available from https://amt.copernicus.org/preprints/amt-2020-321/

The full text article is available as a PDF file from https://amt.copernicus.org/preprints/amt-2020-321/amt-2020-321.pdf

<p>In this paper we present an analytical model for estimating the uncertainty of the horizontal wind speed based on dual-Doppler lidar measurements. The model follows the propagation of uncertainties method and takes into account the uncertainty of radial velocity estimation, azimuth and elevation pointing angles, and ranging. The model is achieved by coupling ranging and elevation angle to uncertainty of the probed wind speed through a simple power-law shear model. The model has been implemented in Python and made freely available through as the Python package <i>YADDUM</i>.</p>