Aeolian dynamics during the barchan–parabolic dune transition: Field observations and modeling results from the Mu Us dune field, northern China

This dataset includes field observation data and numerical simulation results from a barchan–parabolic transitional dune in the Mu Us Dune Field, northern China. It provides high-resolution measurements of wind flow, sand transport, and grain-size distribution across the dune profile. Additionally, terrain data from the broader dune field is included, covering both the barchan–parabolic transitional dunes and barchan (barchanoid) dunes, offering a broader perspective on dune field dynamics. Files with the extensions .csv and .xlsx contain field observation data, while the .nc file contains the numerical simulation output. The .nc file records model outputs at each simulation time step, including q (sand-flux components for different grain-size classes), ustar (friction velocity), and zb (surface elevation).本数据集收录了中国北方毛乌素沙地（Mu Us Dune Field）内一处新月形沙丘-抛物面沙丘过渡型沙丘（barchan–parabolic transitional dune）的野外观测数据与数值模拟结果。该数据集提供了该沙丘剖面处高精度的气流、输沙量与沉积物粒度分布实测数据。此外，数据集还涵盖了更广范围沙地的地形数据，覆盖新月形沙丘-抛物面沙丘过渡型沙丘与新月形（类新月形）沙丘（barchan (barchanoid) dunes），为深入理解沙地动力学特征提供了更全面的研究视角。扩展名为.csv与.xlsx的文件存储野外观测数据，.nc格式文件则存储数值模拟输出结果。该.nc文件记录了各模拟时间步的模型输出内容，包括不同粒级的输沙通量分量（q）、摩擦速度（ustar）与地表高程（zb）。