India sends supplies to typhoon-hit Laos, Myanmar, Vietnam
- September 16, 2024
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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India sends supplies to typhoon-hit Laos, Myanmar, Vietnam
Sub: IR
Sec: India and world
Context:
- India has extended humanitarian assistance to Laos, Myanmar and Vietnam Typhoon Yagi.
- India has committed $1mn worth of flood relief assistance to Vietnam and $1,00,000 worth of assistance to Laos, the Ministry of External Affairs (MEA) announced.
Operation Sadbhav:
- India launched Operation Sadbhav to provide humanitarian assistance and disaster relief (HADR) to Laos, Myanmar and Vietnam that have been hit by severe flooding caused by Typhoon Yag
Typhoon Yagi:
- Typhoon Yagi, which has been termed the strongest tropical cyclone that has hit Asia in 2024, has displaced millions across South East Asia and caused widespread devastation.
- Yagi started as a tropical storm in the western Philippine Sea and turned into a Category 5 typhoon and made landfall in China’s Hainan province with winds of 223 kmph.
Tropical Cyclones:
- Tropical cyclones are violent storms that originate over oceans in tropical areas and move over to the coastal areas bringing about large-scale destruction due to violent winds, very heavy rainfall and storm surge.
- They are irregular wind movements involving closed circulation of air around a low-pressure centre. This closed air circulation is a result of rapid upward movement of hot air which is subjected to Coriolis force.
- A characteristic feature of tropical cyclones is the eye, a central region of clear skies, warm temperatures, and low atmospheric pressure.
Conditions Favourable for Tropical Cyclone Formation:
- Large sea surface with temperature higher than 27°C.
- Presence of the Coriolis force enough to create a cyclonic vortex.
- Small variations in the vertical wind speed.
- A pre-existing weak low-pressure area or low-level-cyclonic circulation.
- Upper divergence above the sea level system.
Name of Tropical cyclones in different regions:
- Atlantic: Hurricanes
- Western Pacific and South China Sea: Typhoons
- Western Australia: Willy-Willies
- Indian Ocean: Cyclones
Tropical vs Temperate cyclone:
| Tropical Cyclones | Temperate Cyclones | |
| Location | Warm tropical oceans near the equator | Mid-latitudes |
| Formed over | Only sea | Both land and sea |
| Formation | Thermal origin | Frontal origin i.e., they develop from interactions between air masses with different temperatures. |
| Structure | Characterized by a well-defined eye, eye wall, and spiral rain bands. | Do not develop an eye. |
| Wind Speed | Higher wind speeds and causes more damage | Lower wind speeds compared to tropical cyclones. |
| Direction | Move from east to west due to prevailing trade winds. | Move from west to east due to the westerly winds in mid-latitudes. |
| Duration | Usually not more than 7 days | 15 -20 days |