recharged by hot spring water near the mountain pass. According to the observation
data, the single spring flow is generally 1.52.0 L/s and the water temperature 30–
40 °C with the maximum of 72 °C, which denotes medium-low temperature
underground hot water. With bubble overflow in the spring mouth, the spring water
flow is stable.
Dachaidan Lake (also known as Yike Chaidamu Lake): As the tail lake of
Baligou River and Datouyanggou River, the crescent-shaped lake sits 4 km south of
Dachaidan Town and extends in the north-southwest direction. Its area varies by
season, and generally reaches 34.3 km
2 with water surface elevation of 3148.00 m
Mean annual evaporation (mm)
Mean annual precipitation (mm)
Precipitation
Evaporation
Temperature
Mean annual temperature
(Month)
Fig. 5.14 Curve chart for mean annual precipitation, evaporation and temperature in Dachaidan
area
Precipitation (mm)
Flow (m 3 /s)
(Month)
Precipitation (mm)
Flow (m
3
/s)
Fig. 5.15 Curves for relationship between average monthly flow and precipitation
152
5 Application Cases
data, the single spring flow is generally 1.52.0 L/s and the water temperature 30–
40 °C with the maximum of 72 °C, which denotes medium-low temperature
underground hot water. With bubble overflow in the spring mouth, the spring water
flow is stable.
Dachaidan Lake (also known as Yike Chaidamu Lake): As the tail lake of
Baligou River and Datouyanggou River, the crescent-shaped lake sits 4 km south of
Dachaidan Town and extends in the north-southwest direction. Its area varies by
season, and generally reaches 34.3 km
2 with water surface elevation of 3148.00 m
Mean annual evaporation (mm)
Mean annual precipitation (mm)
Precipitation
Evaporation
Temperature
Mean annual temperature
(Month)
Fig. 5.14 Curve chart for mean annual precipitation, evaporation and temperature in Dachaidan
area
Precipitation (mm)
Flow (m 3 /s)
(Month)
Precipitation (mm)
Flow (m
3
/s)
Fig. 5.15 Curves for relationship between average monthly flow and precipitation
152
5 Application Cases