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THE OVERWHELMING & DESTRUCTIVE EFFECTIVE OF CHINA’S 3 GORGES DAM
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THE OVERWHELMING & DESTRUCTIVE EFFECTIVE OF CHINA’S 3 GORGES DAM
The Yangtze River has been the primary support of the resources and transportation of
China. The Three Gorges Dam and Reservoir on the Yangtze River is one of the world’s largest
dams. The influence caused by the dam and reservoir on the river system has been overwhelming
and destructive. For better water resource use and flood-prevention planning, more understanding
is needed regarding the dam’s impact on river discharge, regional precipitation, and frequency of
extreme rainfall events. This study aims to analyze the changes in river discharge and regional
precipitation records before and after the construction of the Three Gorges Dam. This research
examines temporal correlations among these data by collecting daily dam injection and dam discharge
records, the precipitation from ground stations, and river discharge. The time series are analyzed
with the wavelet analysis. The precipitation datasets decrease in wavelet magnitude after 1998 when
the dam was built in the wavelet analysis. The annual cycle, shown as a bright year line through
the time range, still exists in the analysis result after 1998, but the magnitude of the annual cycle
has reduced. The river discharge shows a decrease of wavelet magnitude at the three downstream
locations. The possible explanation of this pattern could be the human-controlled dam discharge.
The constant water level maintained in the reservoir by human control would slow down the flow
speed and stabilize it.
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The Yangtze River has been the primary support of the resources and transportation of
China. The Three Gorges Dam and Reservoir on the Yangtze River is one of the world’s largest
dams. The influence caused by the dam and reservoir on the river system has been overwhelming
and destructive. For better water resource use and flood-prevention planning, more understanding
is needed regarding the dam’s impact on river discharge, regional precipitation, and frequency of
extreme rainfall events. This study aims to analyze the changes in river discharge and regional
precipitation records before and after the construction of the Three Gorges Dam. This research
examines temporal correlations among these data by collecting daily dam injection and dam discharge
records, the precipitation from ground stations, and river discharge. The time series are analyzed
with the wavelet analysis. The precipitation datasets decrease in wavelet magnitude after 1998 when
the dam was built in the wavelet analysis. The annual cycle, shown as a bright year line through
the time range, still exists in the analysis result after 1998, but the magnitude of the annual cycle
has reduced. The river discharge shows a decrease of wavelet magnitude at the three downstream
locations. The possible explanation of this pattern could be the human-controlled dam discharge.
The constant water level maintained in the reservoir by human control would slow down the flow
speed and stabilize it.
HOW TO GET A MUG
$15 USD
Payment by Paypal.
BECOME A CHANNEL MEMBER
SUPPORT MY CHANNEL:
★ BECOME A PATREON ★
follow me on twitter @britphilippine TWITTER
SUBSCRIBE and enable the NOTIFICATION BELL.
All Videos/Livestreams Produced by JAMES
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