He found a happy marriage between his career as a physicist and his interest in climbing. For instance, he combined a climbing expedition to the Andes in 1934 with a project to measure geomagnetic effects on cosmic rays.[3]
Between 1933 and 1939, of the seventeen papers on cosmic-ray physics published in Poland, Jodko-Narkiewicz was author or co-author of twelve.[3]
In 1936, with Stanislaw Siedlecki and Stefan Bernadzikiewicz, he took part in a Polish expedition which crossed West Spitsbergen from south to north.[8] Covering 850 kilometres, the three men made the first complete traverse of Spitsbergen.[9]
Balloonist
Considering his interests in cosmic rays and mountaineering, it was a natural development for Narkiewicz-Jodko to take to the skies as a balloonist. A high point in this area of his career came on March 29, 1936, when with a scientific colleague he succeeded in taking the balloon Warszawa II (Warsaw II) up to a height of 10,000 metres for the purpose of scientific measurements.[10]
Konstanty Narkiewicz-Jodko, W walce o szczyty Andów [Battle for the Peaks of the Andes], Warsaw, 1935 (illustrated)[15]
Konstanty Narkiewicz-Jodko, 'Anregung der Strahlung einiger Metalle durch Quecksilberdampf im Zustand des Nachleuchtens', in Physikalische Berichte, vol. 10 (1929), 1650
Dr S. L. Ziemecki & Mr K. Narkiewicz-Jodko, 'The Raman-effect in the proximity of the critical point', in Philosophical Magazine (Taylor & Francis, 1930), pp. 299–306
Konstanty Narkiewicz-Jodko, 'Nachleuchten im elektrisch erregten Hg- Dampf', in Physikalische Berichte, vol. 15, part 1 (1934), 630
S. Ziemecki & K. Narkiewicz-Jodko, 'Continuous Variation of Cosmic Ray Intensity in the Higher Layers of the Troposphere', in Acad. Polonaise Sciences et Lettres, bulletin no. 7a (July, 1936), pp. 318–326[16]
K. Narkiewicz-Jodko, 'Specific Ionization Characteristic of Cosmic Rays', in Bulletin international: Sciences mathématiques (Kraków, 1938)
^ abJerzy Gembicki, Zbigniew Mitzner, Wzdłuż dalekiego brzegu: wybór reportaży z lat międzywojennych (1966), p. 737 online at books.google.com
^ abNick Ellis, M. Belén Gavela, 1993 European School of High-Energy Physics: Zakopane, Poland, 12–25 September 1993: proceedings, Issue 4 (1994), p. 246
^J. Neate, Mountaineering in the Andes (1994, ISBN0-907649-64-5), p. 187
^Stanislaw Siedlecki, Crossing West Spitsbergen from South to North
^Adolf Szponar, Results of investigations of the Polish Scientific Spitsbergen Expeditions, vol. 4 (1982), snippet online at books.google.com
^S. Ziemecki & K. Narkiewicz-Jodko, 'Continuous Variation of Cosmic Ray Intensity in the Higher Layers of the Troposphere', in Acad. Polonaise Sciences et Lettres, bulletin no. 7a (July, 1936), pp. 318-326
^Gregory P. Kennedy, Touching space: the story of Project Manhigh (2007), pp. 33, 123 at books.google.com
^Zofia Radwańska-Paryska, Witold H. Paryski, Kazimierz Saysse-Tobiczyk, Encyklopedia tatrzańska (1973), p. 329: "Narkiewicz-Jodko Konstanty, ur. 1901 w Pińczowie, zm. 1963 w Psarach (Wielkopolska). Podróżnik, taternik, alpinista, polarysta, fizyk..."
^Reviewed in Przegla̜d geograficzny (Polish geographical review), vols. 15-16 (1936), p. 189
^abstracted in Science abstracts: Physics, vol. 40 (1937), p. 278, as: "Measurements made at heights from 6650 m. to 10000 m. during a flight of the balloon "Warszawa II" on March 29, 1936'