Assessment of Wind Conditions at a Fjord Inlet by Complementary Use of Sonic Anemometers and Lidars

详细信息    查看全文

• 作者：Jasna Bogunović Jakobsen^a ; ^{jasna.b.jakobsen@uis.no" class="auth_mail" title="E-mail the corresponding author} ; Etienne Cheynet^a ; Jonas Snæ ; bjö ; rnsson^a ; ^b ; Torben Mikkelsen^c ; Mikael Sjö ; holm^c ; Nikolas Angelou^c ; Per Hansen^c ; Jakob Mann^c ; Benny Svardal^d ; Valerie Kumer^e ; Joachim Reuder^e
• 关键词：Long-range pulsed lidar ; Short-range WindScanner ; Sonic anemometer ; Length-scale ; Coherence ; Long-span bridges
• 刊名：Energy Procedia
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：80
• 期：Complete
• 页码：411-421
• 全文大小：6247 K

文摘

Wind velocity measurement devices based on the remote optical sensing, lidars, are extensively applied in wind energy research and wind farm operation. The present paper demonstrates the relevance and potential of lidar measurements for other wind- sensitive structures such as long-span bridges. In a pilot study in Lysefjord, Norway, a pulsed long-range lidar and two short-range WindScanners were installed at the bridge site, together with a long-term monitoring system based on sonic anemometers. The deployment of the two types of lidars is described in more details and the complementary value of the data from all three types of the instruments is illustrated. The emphasis is on the lidars’ potential to map the wind conditions along the whole span of a bridge in a complex terrain, as opposed to “point” measurements achievable by sonic anemometers. The challenging balance between the spatial and temporal resolution of the data is discussed.