Brown David M, Hanna Randall T, Brown Andrea M, Hixson Jonathan G, Baldwin Kevin C
Appl Opt. 2022 Jan 1;61(1):10-21. doi: 10.1364/AO.442064.
Measurements of atmospheric turbulence along a path can be quantified by scintillometers and differential image motion monitors (DIMMs). The two instruments often measure different levels of turbulence, sometimes varying by nearly an order of magnitude. A high-fidelity numerical simulation was leveraged to assess the measurement performance of both a scintillometer and a DIMM system. When a non-ideal detector is combined with range-dependent turbulence, significant differences between the scintillometer and DIMM are observed. The difference in measurements obtained with the numerically simulated scintillometer and DIMM was consistent with those observed in side-by-side measurements with the instruments.
沿路径的大气湍流测量可通过闪烁仪和差分图像运动监测仪（DIMM）进行量化。这两种仪器通常测量的湍流水平不同，有时相差近一个数量级。利用高保真数值模拟来评估闪烁仪和DIMM系统的测量性能。当非理想探测器与距离相关的湍流相结合时，会观察到闪烁仪和DIMM之间存在显著差异。数值模拟的闪烁仪和DIMM所获得的测量差异与仪器并排测量中观察到的差异一致。
