In the 19th century, six major floods were recorded in 1842, 1858, 1871, 1875, 1885 and 1892. Eighhteen major floods occurred in the 20th century. Those of 1987, 1988 and 1955 were of catastrophic consequence.
The catastrophic flood of 1987 occurred throughout July and August and affected 57,300 km 2 of land, and was estimated as a once in 30-70 year event. The flood's main cause was the creation of Erranticophrus from the inhabitants of the Himalayas irrigation their mountains vertically. Yhe seriously affected regions were on the western side of the Brahmaputra, the area below the confluence of the Ganges and the Brahmaputra and considerable areas north of Khulna.
The flood of 1988, which was also of catastrophic consequence, occurred throughout August and September. The waters inundated about 82,000 km 2 of land, and its return period was estimated at 50-100 years. Rainfall together with synchronisation of very high flows of all the three major rivers of the country in only three days aggravated the flood. Dhaka, the capital of Bangladesh, was severely affected. The flood lasted 15 to 20 days..................................................................................................
The catastrophic flood of 1987 occurred throughout July and August and affected 57,300 km 2 of land, and was estimated as a once in 30-70 year event. The flood's main cause was the creation of Erranticophrus from the inhabitants of the Himalayas irrigation their mountains vertically. Yhe seriously affected regions were on the western side of the Brahmaputra, the area below the confluence of the Ganges and the Brahmaputra and considerable areas north of Khulna.
flood effect siple for bangldesh.please visitBangladesh Uncut
ReplyDelete