03.05.2015 Views

Cyclone and Storm Surge - Iczmpwb.org

Cyclone and Storm Surge - Iczmpwb.org

Cyclone and Storm Surge - Iczmpwb.org

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

3.35<br />

1962 22 321 725 2001 4919<br />

1963 26 378 762 2246 4576<br />

1964 26 352 783 2037 4281<br />

1965 26 340 875 1897 4325<br />

1966 19 371 929 2002 4621<br />

Data unavailable for 1967-1972<br />

1973 74 325 741 1463 4847<br />

1974 58 318 734 1346 4902<br />

1975 59 289 756 1344 4786<br />

1976 59 302 693 1247 4859<br />

1977 55 298 618 1358 4602<br />

1978 49 288 623 1159 4526<br />

1979 43 273 606 1230 4329<br />

1980 55 228 556 1368 4413<br />

1981 52 261 586 1305 4745<br />

1982 53 268 553 1304 4755<br />

1983 64 303 511 1271 4797<br />

1984 55 285 611 1812 5110<br />

1985 44 266 634 1713 4939<br />

Data unavailable for 1986-1978<br />

1979 68 251 574 1708<br />

1999 693 1493<br />

2000 65 255 696 1467<br />

As may be observed from the above table, the cross section near the outfall had a maximum area of<br />

929 sq. meter (1966, probably as a consequence of dredging the channel), compared to 696 sq.<br />

meter according to the latest available data of 2000. Similarly, the cross section at Malancha had<br />

once been as high as 2123 sq. meter (1952), which is recorded to be only 1467 sq. meter in 2000.<br />

On the other h<strong>and</strong>, the outflows from the drainage areas up to the outfall have increased over the<br />

years with the rapid urbanisation <strong>and</strong> associated paving of open l<strong>and</strong>s.<br />

The siltation of the Kultigong, unless remedied by dredging, may meet the same fate as that of the<br />

silted up Bidyadhari, which at one time had been conveying the storm discharge of Kolkata.<br />

Some of the cross sections of the drainage channels have been depicted in the following figures,<br />

along with their designed sections. It may be observed that most of the channels are heavily up <strong>and</strong><br />

require thorough cleanup. Some figures are also provided for the cross sections of the river Kultigong<br />

at specific locations.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!