800 year paleoclimate pattern revealed in Asia’s largest study of rivers

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Longest asian river

Lonngest Asian Rivers

This river is being discharged at 62 stations in 813 years, 41 rivers from 16 countries, from 1200 to 2012. This is the data that researchers at Called Singapore University of Technology and Design (SUTD) created after two years of research to better understand the past. Climate patterns of the Longest asian river monsoon region.

Longest asian Rivers

                    Rivers Name                       Countries

    Length

       KM

1.                        Yangtze                           China       6300
2.                    Yellow River                           China       5464
3.                        Mekong China, Myanmar, Laos, Thailand, Cambodia, Vietnam       4909
4.                     Lena River                          Russia       4294
5.                     Irtysh River Mongolia, China, Kazakhstan, Russia       4248
6.                 Brahmaputra River            China, India, Bangladesh       3848
7.                       Ob River                          Russia       3650
8.              Indus River (Sindh)               China, India, Pakistan       3610
9.                    Yenisei River                   Mongolia, Russia       3487
10.         Nizhnyaya Tunguska River                          Russia       2989
11.             Yarlung Tsangpo River               China, India, Bangladesh       2840
12.                    Amur River                        Russia, China       2824
13.

                  Salween River

         China, Myanmar, Thailand        2800
14.                      Euphrates                     Iraq, Syria, Turkey        2760
15.                   Vilyuy River                           Russia       2650
16.                Ganges (Ganga)                   India, Bangladesh       2510
17.                    Amu Darya Afghanistan, Tajikistan, Turkmenistan, Uzbekistan        2500
18.                    Ishim River              Kazakhstan, Russia       2450
19.                     Ural River              Kazakhstan, Russia       2428
20.                    Pearl River                China, Vietnam        2320

Home to several populated river valleys, including the world’s ten largest rivers Figure 1, provides water, energy and food for more than three billion people in the Asian monsoon region. This makes it important for us to understand past climate patterns so that we can better estimate long-term changes in the water cycle and this will also have an impact on water supply.

Longest asian river

To reconstruct the history of river discharge, researchers relied on tree rings. An earlier study by Cook et al. (2010) developed an extensive network of tree ring data sites in Asia and created a palodroid record called Monsoon Longest asian river Drought Atlas (MADA). SUTD researchers used MADA as an input for their river discharge model.

They developed an innovative process to select the most relevant subclass of mada for each river on the basis of hydroclimatic similarity. This process allowed the model to extract the most important climatic signals that affect Longest asian river discharge from the underlying tree ring data.

“Our results suggest that rivers in Longest asian river behave in a consistent pattern. Large droughts and major platonic periods often occur together in adjacent or adjoining valleys. Occasionally, droughts occur from the Godavari in India to the Mekong (Fig. 2) in southeast Asia. This has important implications for water management, especially when the country’s economy depends on many river valleys, such as in the case of Thailand, “first author Nguyen Tan Thai Hung, a PhD student from SUTD.

Using modern measurements, it is known that the behavior of Longest asian river is influenced by the oceans. For example, if the Pacific Ocean warms up in its tropical region in an El Niño event, it will cause atmospheric circulation and drought in the South and Southeast Asian rivers.

Longest asian river

However, the SUTD study revealed that this ocean – river connection is not stable over time. Researchers found that rivers in Asia were less affected by the seas in the first days of the 20th century than they were in the first half of the 20th century and 50 years after that period. “This research is of great importance to policy makers;

We need to know where and why river discharge changed during the last millennium to make major decisions on water-dependent infrastructure. One such example is the development of the ASEAN Power Grid, which is conceived to connect a system of hydroelectric, thermoelectric and renewable power plants in all ASEAN countries. Our records show that ‘mega-drots’ have hit several power generation sites simultaneously,

So we can now use this information to design a weak grid during peak events, “said lead investigator Associate Professor Stefano Galilei to SUTD:” Hung Streamflow Variability in Monsoon Asia over the Past at Centuries – Ocean Drivers ” Link ”Hung TT Nguyen, Sean WD Turner, Brendan M. By Buckley and Stefano Galilei, 26 September 2020, Water Resources Research.