5:15 PM - 6:45 PM
[STT37-P03] Microtremor observations around wind turbines along the coast
Keywords:microtremor observation, wind turbines, coast, CCS
Forward to achieve carbon neutral in 2050 in Japan, development of wind power turbines has been promoting. Constant strong wind locating along coast and mountain area generate larger electric power. Over 2,000kW class big wind turbines consist with over 70m of tower and over 80m diameter of rotor blades generates micro ground vibrations. Sea waves along coast cause of microtremor as well.
In this study, microtremor observation was conducted at the wind turbines along the Yurihonjo coast area at Akita prefecture. The vibration was recorded for 30 minutes to 1 hour at the basement of the wind turbines and point distanced 500m to 2km with two seismometers at the same time. We collected the data of wind strength, wind direction, wave height, and observed wind turbine operation. We organized these data and analyzed effects to microtremors by wind, sea waves and wind turbines. We present this record and characterization and discuss application to geophysical exploration and monitoring using wind turbine.
In our future works, we will conduct microtremor array survey. Big wind farm projects planned near future encourage the potential of utilization of microtremor measurements. We will discuss the utilization for CO2 monitoring at CCS sites.
In this study, microtremor observation was conducted at the wind turbines along the Yurihonjo coast area at Akita prefecture. The vibration was recorded for 30 minutes to 1 hour at the basement of the wind turbines and point distanced 500m to 2km with two seismometers at the same time. We collected the data of wind strength, wind direction, wave height, and observed wind turbine operation. We organized these data and analyzed effects to microtremors by wind, sea waves and wind turbines. We present this record and characterization and discuss application to geophysical exploration and monitoring using wind turbine.
In our future works, we will conduct microtremor array survey. Big wind farm projects planned near future encourage the potential of utilization of microtremor measurements. We will discuss the utilization for CO2 monitoring at CCS sites.