Flood in the Mekong Delta through satellite remote sensing

Thursday, 2018-09-13 12:22:37
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Flood waters (black) covered a large area of the Mekong Delta. (Photo of satellite remote sensing on September 9)
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NDO – In order to quickly provide information on flooded areas in the Mekong Delta, the Vietnam Space Centre, under the Vietnam Academy of Science and Technology (VAST), has used the image of Radar Remote Sensing Satellites sent by the Sentinel- 1 of the European Space Agency in the Mekong region located on both sides of Vietnam and Cambodia for analysis. The results show that floods in the Mekong Delta are complicated.

Analysis of the satellite images shows that in 2018 floods appeared earlier in the Mekong Delta than for many years and developed in a complicated manner. By using the radar image, it is possible to quickly identify areas of flooding.

Photo taken on July 5 shows no floods.

On July 11 and July 17, floods occurred in the upstream (black areas) as the flow of the upper Mekong flowed into the Mekong River Delta at a higher level than the average of many years combined with the tides, causing the water level of the Mekong to rise up quickly.

Photo taken on August 4 shows flood waters upstream, some areas of Dong Thap and Long An provinces have been flooded. According to the National Meteorology and Hydrology Centre, the highest water level measured on August 7 at the Tien River at Tan Chau (An Giang) was 3.26 metres, while on the Hau River in Chau Doc (An Giang) it was 2.59 metres.



Photos on August 16 and 22 showed that the floods had spread in An Giang, Dong Thap and Long An provinces

Photos on August 28 and September 3 (black on the photo is submerged).

Photo on September 9 showed that the flooded areas were more widespread than the previous photo.

THAO LE