Causes of multiple storm surges in the Bay of Bengal region

The month and month of each year are the transition period of the monsoon in Bangladesh. At this time, tropical storm activity is frequent, and violent storms and rain hit the country. The strong southwest monsoon from June to September every year hits the Indian Ocean, bringing the South Asian continent into the rainy season flooding period, during which 80% of the precipitation in Bangladesh is concentrated.

When the monsoon season comes, heavy downpours fall in northern India, Nepal and the Himalayas, and the ferocious river water mixed with a large amount of snowmelt from the Himalayas rolls down the Ganges River from the northwest to Bangladesh downstream, at this time, the river water in the Bay of Bengal**, the sea topping, and the rising tide water level exacerbates the flooding in Bangladesh.

1.Located in the Himalaya** belt of the Mediterranean, the earth's crust is active and prone to ** and tsunamis.

2.The Bay of Bengal is trumpet-shaped and susceptible to high tides.

3.The coastal areas are low-lying and flat, with a dense river network, more precipitation and poor drainage.

4.The coastal areas of the Bay of Bengal are densely populated, and when they are hit by storms and tsunamis (storm surges), the losses are huge.

5.Bangladesh and other countries have weak economies and cannot afford to build high-intensity coastal defense projects.

6.The coastal vegetation of the Bay of Bengal is seriously damaged, and the forest stores water and weakens the ability to prevent floods.

1. It is a tropical monsoon climate with concentrated precipitation; The southwest monsoon varies in strength and precipitation varies greatly from year to year. The north is the windward slope of the southwest monsoon with abundant precipitation.

2. Hurricanes occur frequently in summer and autumn, bringing a lot of precipitation.

3. Located in the plain and delta of the lower reaches of the Ganges River, the terrain is low and flat, and the water flow is slow, which aggravates the degree of disaster.

4. Located in the lower reaches of the Ganges River, the floods of the main and tributaries converge here, and the river channel is curved, the drainage is not smooth, and it is easy to become floods.

5. Global warming has led to rising sea levels, hurricanes have led to frequent storm surges, and rivers are poorly drained by seawater.

1.The Bay of Bengal region is flat.

2.The impact of the flared ocean on the tip of the horn is frequent and large.

The storm surge season in Bangladesh is mainly due to the difference in the thermal nature of land and sea. Since Bangladesh is located in South Asia, the summer temperature is high and the atmospheric pressure is low, while the winter is the opposite, the atmospheric pressure is high and the temperature is low. As a result, heat from the ocean surface is transported above the land in the summer, creating a strong updraft, which can create storm surges.

Temperature, the climate of the Bay of Bengal has obvious tropical maritime and monsoon characteristics, which is higher than the temperature of the Pacific and Atlantic seas at the same latitude. Precipitation, the precipitation in the Indian Ocean is the most abundant in the equatorial zone, with annual precipitation of 2,000 mm to 3,000 mm, and the seasonal distribution of precipitation is relatively even, two-thirds of the precipitation is concentrated in the summer when the southwest wind prevails, and the winter when the northeast wind prevails, the precipitation is less, and it is the distribution area of the tropical monsoon. The air pressure system, the most influential air pressure system is:

The Indian low, the equatorial low, the Mongolian high, and the southern Indian Ocean subtropical high. In winter, under the influence of Mongolian high pressure, the northeast monsoon blows in the Bay of Bengal, and the wind direction is consistent with the northeast trade wind, when the temperature in the Bay of Bengal is low and there is little rain, the southeast trade wind blows in the southern part of the Indian Ocean, and the northeast monsoon and the southeast trade wind meet near the equator to form a strong and rainy tropical convergence zone. In summer, the direct sun point moves northward, the Mongolian high pressure is replaced by the Indian low pressure, and the southeast trade winds from the subtropical high in the southern Indian Ocean pass through the equatorial sea area with high temperature and humidity, and turn into the southwest monsoon when entering the Bay of Bengal, the temperature increases and the precipitation also increases greatly.

Professional and concise:

1.It is located in the tropical monsoon climate zone, and a lot of precipitation is concentrated in the rainy season.

2.The area is confluent with the Ganges River and the Buramaputra River, which is prone to flooding.

3.The lower reaches of the Ganges are low-lying and poorly drained.

4.The unique trumpet-shaped bay of the Bay of Bengal is prone to absorbing water from hurricanes and summer monsoons.

Climate + Topography + (River Network) + (Deforestation) + Personality (e.g. Typhoon Flare Mouth

1.It is located in the tropical monsoon climate zone, and a lot of precipitation is concentrated in the rainy season.

2.The area has the confluence of the Ganges River and the Buramaputra River, which is prone to flooding.

3.The lower reaches of the Hengnaosheng River are low-lying and have poor drainage.

4.The unique trumpet-shaped bay of the Bay of Bengal is prone to absorbing the curved seawater of hurricanes and summer monsoons.

In terms of climate, Bangladesh is located in the northern part of the Bay of Bengal, and belongs to the tropical monsoon climate, affected by the southwest monsoon of India In terms of topography, Bangladesh is located in the lower reaches of the Brahmaputra River, and the geographical form of the country is an impact plain, and the terrain is flat. Bangladesh is located in the southern foothills of the Himalayas, which is trumpet-shaped, easy for hurricanes to enter, not easy to evacuate, and has few obstacles, making it destructive, strong and long-lasting!