FN Archimer Export Format
PT J
TI Experimental Evaluation of the Motion-Induced Effects for Turbulent Fluctuations Measurement on Floating Lidar Systems
BT 
AF Thiébaut, Maxime
   Thebault, Nicolas
   Le Boulluec, Marc
   Damblans, Guillaume
   Maisondieu, Christophe
   Benzo, Cristina
   Guinot, Florent
AS 1:1;2:1;3:2;4:1;5:2;6:3;7:1;
FF 1:;2:;3:PDG-DGDS-REM-RDT-LHYMAR;4:;5:PDG-DGDS-REM-RDT-LHYMAR;6:;7:PDG-DOP-DCB-ERT-HO;
C1 France Énergies Marines, Technopôle Brest-Iroise, 525 Avenue Alexis de Rochon, 29280 Plouzané, France
   Ifremer, 1625 Route de Sainte-Anne, 29280 Plouzané, France
   Vaisala France SAS, 6A, Rue René Razel, Tech Park, CS 70001, 91400 Saclay, France
C2 FRANCE ENERGIES MARINES, FRANCE
   IFREMER, FRANCE
   VAISALA FRANCE SAS, FRANCE
SI BREST
SE PDG-DGDS-REM-RDT-LHYMAR
   PDG-DOP-DCB-ERT-HO
IF 5
TC 0
UR https://archimer.ifremer.fr/doc/00887/99855/109962.pdf
LA English
DT Article
DE ;floating wind lidar;Doppler Beam Swinging (DBS);turbulence;motion-induced error
AB This study examines how motion influences turbulent velocity fluctuations utilizing measurements obtained from a wind lidar profiler. Onshore tests were performed using a WindCube v2.1 lidar, which was mobile and mounted on a hexapod to simulate buoy motion. Additionally, a fixed WindCube v2.1 lidar was used as a reference during these tests. To assess the motion-induced effects on velocity fluctuations measured by floating lidar systems, the root-mean-square error (RMSE) of velocity fluctuations obtained from the fixed and mobile lidars was calculated. A comprehensive wind dataset spanning 22.5 h was analyzed, with a focus on regular motions involving single-axis rotations and combinations of rotations around multiple axes. The investigation of single-axis rotations revealed that the primary influencing factor on the results was the alignment between the tilt direction of the mobile lidar and the wind direction. The highest RMSE values occurred when the tilt of the mobile lidar leans in the wind direction, resulting in pitch motion, whereas the lowest RMSE values were observed when the tilt of the mobile lidar leans perpendicular to the wind direction, resulting in roll motion. Moreover, the addition of motion around extra axes of rotation was found to increase RMSE. 
PY 2024
PD APR
SO Remote Sensing
SN 2072-4292
PU MDPI AG
VL 16
IS 8
DI 10.3390/rs16081337
ID 99855
ER

EF