[A-CC39] Glaciology

[ACC39-P03] Drainage from short-lived glacial lake in the Tien Shan, Central Asia.

Mirlan Daiyrov¹, *Chiyuki Narama², Tsutomu Yamanokuchi³ (1.Central-Asian Institute for Applied Geosciences (CAIAG), 2.Niigata University, Department of Science, 3.RESTEC)

Keywords:short-lived glacial lake, hydrograph, ice tunnel, Tien Shan

Many small glacial lakes are located at glacier fronts in the northern Tien Shan in the Kyrgyz Republic, Central Asia. In the region of the Issyk-Kul Basin, four large drainages occurred between 2006, 2008, 2013 and 2014 (Narama et al., 2010, 2018). These large drainages were caused by the “short-lived type” of glacial lakes which rapidly grew and drained within a few months (Narama et al., 2010, 2018; Daiyrov et al., 2018, 2019). To investigate drainage phenomena from short-lived lake, we set water level data logger and interval camera at the Korumdu Glacier, the northern Tien Shan. We got hydrograph of drainage from short-lived lake in 2017, 2018 and 2019.