Justification for high-ascent attainment for balloon radiosonde soundings at GRUAN and other sites. - Fujiwara, Masatomo; Sun, Bomin; Reale, Anthony; Cimini, Domenico; Larosa, Salvatore; Borg, Lori; von Rohden, Christoph; Sommer, Michael; Dirksen, Ruud; Maturilli, Marion; Vömel, Holger; Kivi, Rigel; et al. (Atmospheric Measurement Techniques, 2025)