Marlton Graeme J, Harrison R Giles, Nicoll Keri A, Williams Paul D
Department of Meteorology, University of Reading, Earley Gate, Reading RG6 6BB, United Kingdom.
Rev Sci Instrum. 2015 Jan;86(1):016109. doi: 10.1063/1.4905529.
A weather balloon and its suspended instrument package behave like a pendulum with a moving pivot. This dynamical system is exploited here for the detection of atmospheric turbulence. By adding an accelerometer to the instrument package, the size of the swings induced by atmospheric turbulence can be measured. In test flights, strong turbulence has induced accelerations greater than 5g, where g = 9.81 m s(-2). Calibration of the accelerometer data with a vertically orientated lidar has allowed eddy dissipation rate values of between 10(-3) and 10(-2) m(2) s(-3) to be derived from the accelerometer data. The novel use of a whole weather balloon and its adapted instrument package can be used as a new instrument to make standardized in situ measurements of turbulence.
气象气球及其悬挂的仪器组件表现得如同一个具有移动支点的摆锤。在此，利用这个动力系统来探测大气湍流。通过在仪器组件上添加一个加速度计，可以测量由大气湍流引起的摆动幅度。在试飞中，强烈的湍流已引发了大于5g的加速度，其中g = 9.81米每二次方秒。利用垂直定向激光雷达对加速度计数据进行校准，使得能够从加速度计数据中得出介于10^(-3)和10^(-2)平方米每三次方秒之间的涡耗散率值。全新的整体气象气球及其适配的仪器组件可作为一种新型仪器，用于对湍流进行标准化的现场测量。
