The first radial alignment between Parker Solar Probe and Solar Orbiter spacecraft is used to investigate the evolution of solar wind turbulence in the inner heliosphere. Assuming ballistic propagation, two 1.5 hr intervals are tentatively identified as providing measurements of the same plasma parcels traveling from 0.1 to 1 au. Using magnetic field measurements from both spacecraft, the properties of turbulence in the two intervals are assessed. Magnetic spectral density, flatness, and high-order moment scaling laws are calculated. The Hilbert–Huang transform is additionally used to mitigate short sample and poor stationarity effects. Results show that the plasma evolves from a highly Alfvnic, less-developed turbulence state near the Sun, to fully developed and intermittent turbulence at 1 au. These observations provide strong evidence for the radial evolution of solar wind turbulence.

帕克太阳探测器和太阳轨道器航天器之间的第一次径向对齐用于研究内日光层中太阳风湍流的演变。假设弹道传播，两个 1.5 小时的间隔被暂时确定为提供从 0.1 到 1 天文单位传播的相同血浆包裹的测量值。使用来自两个航天器的磁场测量，评估两个间隔中的湍流特性。计算磁谱密度、平坦度和高阶矩标度定律。Hilbert-Huang 变换还用于减轻短样本和较差的平稳性影响。结果表明，等离子体从太阳附近的高度 Alfvnic、不发达的湍流状态演变为 1 au 处的完全发展和间歇性湍流。