River tides in Ho Chi Minh City rose to a new high Sunday after breaking the record a year ago by two centimeters.
Measurements on the Saigon River showed the tide peak at 1.64 meters, compared to 1.62 meters recorded October 18 last year.
Figures from the Southern Hydrometeriological Forecast Station showed that the tides had peaked at 1.62 meters early on Sunday and a day before.
The station said tides would hover around that level for a couple days before reducing to 1.54 meters on Tuesday and 1.4 days later.
Ho Chi Minh City, known as Vietnam's commercial hub, was listed by Nature Climate Change among the ten cities most vulnerable to climate change flooding.
It was ranked ninth of the 136 largest coastal cities in the world, based on average annual losses caused by flooding until 2050.
The study estimated that the cities could lose between US$60 billion and $63 billion a year by 2050 due to land subsidence and rising sea levels, even if they continue making investments to maintain their current level of flood exposure.
Their annual losses could jump to more than $1 trillion otherwise, it found.
A similar list in 2005, which estimated cities' flood losses at $6 billion that year, did not have HCMC in the top ten.
Vietnam's Ministry of Natural Resources and Environment also said in a report last April that 20 percent of HCMC's area would flood if the sea level rises by one meter.
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