TY  - Data
T1  - Analysis data on emptying capacity of high dam reservoirs in China
A1  - Zhou Xingbo
A1  - Cheng Jialin
PY  - 2025
DA  - 2025-06-27
PB  - National Cryosphere Desert Data Center
AB  - Gaoba Reservoir has strong regulation capacity and plays an important role in cascade development and disaster prevention and reduction in the basin. However, the risks it faces objectively exist, and the consequences of a failure are unimaginable. The ability to empty or lower the water level of reservoirs is a new requirement for dam risk prevention and emergency management in the new stage of economic and social development. We selected 25 typical high dam reservoirs in China for analysis of their emptying capacity, and obtained data on dam type, maximum dam height, dam crest elevation, normal water level, total storage capacity, emptying water level, emptying head ratio, remaining emptying capacity, emptying capacity, emptying time, and average deceleration of reservoir water. The emptying head ratio of Gaoba Reservoir ranges from 17.5% to 71.8%, with an average of 42.7%; The empty storage capacity ratio ranges from 47.2% to 99.2%, with an average of 81.7%; The emptying time ranges from 7.2 to 123 days, with an average of 42.7 days; the reservoir water deceleration rate ranges from 0.71 to 9.03 m/d, with an average of 3.0 m/d. This data can be used as a reference for key issues in the design of reservoir emptying facilities, such as inflow, emptying indicators, start-up conditions, and hierarchical decision-making modes.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/87c9a213-2f11-43f5-a9f6-04f0b6fad240
ER  -