Open AccessScopes and Challenges of Dual-Doppler Lidar Wind Measurements—An Error Analysis
Author(s) -
Christina Stawiarski,
K. Träumner,
Christoph Knigge,
Ronald Calhoun
Publication year - 2013
Publication title -
journal of atmospheric and oceanic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.774
H-Index - 124
eISSN - 1520-0426
pISSN - 0739-0572
DOI - 10.1175/jtech-d-12-00244.1
Subject(s) - lidar , doppler effect , remote sensing , computer science , range (aeronautics) , dual (grammatical number) , wind speed , environmental science , temporal resolution , meteorology , optics , geology , physics , aerospace engineering , art , literature , astronomy , engineering
Pulsed Doppler lidars are powerful tools for long-range, high-resolution measurements of radial wind velocities. With the development of commercial Doppler lidars and the reduction of acquisition costs, dual-Doppler lidar systems will be become increasingly accessible in upcoming years. This study reviews the most common dual-Doppler techniques, describes the setup of a highly synchronized long-range dual-Doppler lidar system, and discusses extensively the different kinds of errors connected with this complex measurement technique. Sources of errors and their interactions are traced through the retrieval algorithm, including errors from single-Doppler lidar and those occurring from a combination of instruments related to various parameters, such as relative beam angles, time and spatial scales of the scan pattern, and atmospheric conditions.