Early warning of floods: Need to change the mindset of "building a barn after the cow is gone"

QNgTV- The consecutive heavy rains causing serious floods in many provinces of the South Central region show the increasingly extreme and unpredictable nature of the weather in the context of climate change. Even without a storm, the rainfall can still exceed the total rainfall of a super storm, causing floods on top of floods and far exceeding current calculation scenarios.

Heavy rains and floods have caused many rivers in Da Nang and Hue to rise very high, posing a risk of flooding.

This reality poses a major challenge to reservoir forecasting and operation. Many current design standards and flood discharge procedures are outdated, mainly based on the “single flood” model, while in reality, “double floods” are occurring more and more often. Forecast errors still exist, although domestic and foreign models have achieved acceptable accuracy.

Experts say it is necessary to comprehensively review the process of natural disaster prevention and control, especially the decision-making mechanism for reservoir operations. Establishing an independent consulting unit or hiring socialized services in the field of hydrology is considered a necessary solution. At the same time, it is necessary to invest heavily in infrastructure for monitoring rain and water levels, and develop a decision-making support system on a digital platform.

According to the authorities, in the coming time, technical standards will be updated, digital transformation will be promoted and data sharing between reservoirs in the same basin will be enhanced. Early warning, accurate forecasting and early prevention investment are identified as the key to minimizing damage and ensuring people's safety in the face of increasingly complex natural disasters.

Source: https://quangngaitv.vn/canh-bao-som-mua-lu-can-thay-doi-tu-duy-mat-bo-moi-lo-lam-chuong-6510874.html