Machine-learned flow estimation with sparse data–Exemplified for the rooftop of an unmanned aerial vehicle vertiport - Hou, Chang; Marra, Luigi; Cornejo Maceda, Guy Yoslan; Jiang, Peng; Chen, Jingguo; Liu, Yutong; Hu, Gang; Chen, Jialong; Ianiro, Andrea; Discetti, Stefano; Meilan Vila, Andrea; Noack, Bernd R. (PHYSICS OF FLUIDS, 2024)