K. Tietze's scientific contributions

Citations

... As a consequence, ecological features have been investigated and collected in a book (Descy et al., 2012). Gas influx and arising ebullition danger through changing climate, weather conditions or volcanic activity have been considered (Schmid et al., 2002;Lorke et al., 2004). ...
... The CH 4 is most probably produced in the lake, mainly in the sediments, from decomposing organic material and by reduction of CO 2 . The reason for the unusually high concentrations is the very stable stratification which prevents the exchange of gases between the deep water and the surface waters and finally the loss to the atmosphere (Tietze, 1980 and Halbwachs et al., 2002). The catchment area of Lake Kivu is densely populated with an average density of about 400 inhabitants per km 2 (Muvundja et al., 2009). ...
... There is evidence that global warming is already affecting African lakes and reservoirs [129]. Lakes Malawi [130], Kivu, [131] and Tanganyika [124] appear to have strengthened stratifications. Lake Kariba still becomes isothermal in winter, and mixing occurs despite its warming [129]. ...
... This new flank eruption, which generated lava flows, was larger (25 million m 3 over 14 km 2 ) and more destructive than that of 1977 (Wisner, 2017;Wauthier et al., 2012;Smets et al., 2015a). In less than 24 h, Goma was crossed by two lava flows, one of which reached Lake Kivu (Schmid et al., 2002). Komorowski et al. (2002) estimate that 40 people died and that 120 000 people had their homes destroyed. ...