Water Issues in South Asia

Water issues in South Asia If any of the most important issues compromise bilateral relations among countries of the subcontinent, it is water. Problems of cross-border water allocation, utilization, management and large-scale irrigation / hydroelectric power projects affecting water supply and sewerage countries often cause tragic lives due to increased water shortage, drought and flood, It is becoming a central stage to define.

Extreme floods in South Asia have affected many cities and Bangladesh, and one third of them are underwater. Hurricane Harvey hit South Texas with four class advantage, creating record rainfall in many places, including but not limited to Houston. Even the general climate system has been promoted in an unprecedented way and the history of natural climate change dating back to the impact of tens of millions of years on asteroids is not similar. It is about the rate of increase of carbon dioxide and other greenhouse gases. If the concentration of greenhouse gases is much higher than at present, there were many periods in the deep part of the earth, but this did not happen before.

The Maldives belong to the tropical monsoon climate (Am) of the Köppen climate classification and are influenced by the continent of South Asia. The presence of this land leads to different heating of land and water. These factors resulted in concentration of air above the South Asian Sea in the Indian Ocean, leading to the southwest monsoon. Two seasons dominate the weather in Maldives: dry season and rainy season associated with winter northeastern monsoon bring strong wind and storm

Due to the deeper cold water of the eastern Pacific, the sea surface temperature of the coast of Asia is about 8 oC (14 o F) higher than the temperature of the East Pacific. The cooler water sources in South America are highly nutritious, supporting high primary productivity, diverse marine ecosystems, and major fisheries. While the East Pacific is relatively dry, clouds and rain are found in the rising air of the warmest water near Asia. In the El Niño phenomenon (lower figure), the trade wind in the Middle East and the Pacific Ocean was relaxed, leading to the thermocline flattening (blue band) and thermocline temperature rise due to the thermocline shrinkage in the eastern part of the Pacific Ocean. Western part. For example, with an observation of 110 oW, it was shown that the isotherm of 17 degrees declined to a depth of about 150 m between 1982 and 1983. This reduces the efficiency of the upflow cooling surface and blocks nutrient-rich thermocline feedwater into the light permeable zone.