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GEOMATICS 23-01-2021
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LAN
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drought
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File: drought_kerala.php
<?php include("session.php"); include("header.php"); ?> <title>Drought Management Support System</title> </head> <form action="drought_kerala.php?name=<?php echo $var ?>" method="post" > <body> <table style="text-align: left; width: 98%; height: 10%; margin-left: auto; margin-right: auto;" border="0" cellpadding="0" cellspacing="0"> <tr> <td background="image/back1.jpg"><table width="99%" border="0"> <tr> <td valign="top"><table width="98%" border="0"> <tr> <td><p align="justify"><span class="style3"><strong>Characteristics of Drought in Kerala</strong></span></p> <p align="justify"> <br /> Kerala state in India, which is the first area of the country to experience the southwest monsoon, has a moist and wet climate. Kerala is in the extreme southwestern part of the Indian subcontinent; it borders Karnataka state in the north, Tamil Nadu in the east, and the Arabian Sea in the west. The entire state is one of the 35 meteorological subdivisions in India.<br /> Kerala's climate is tropical monsoon and tropical savanna, according to Koppen's climatic classification. The state normally experiences excessive seasonal rainfall, with hot summers (except in the extreme southern districts like Trivandrum, where dry season and hot summer climate prevails). The three main seasons of the state are the hot season (March-May), southwest monsoon season (May- September), and northeast monsoon season (October, February).<br /> The annual rainfall of the state varies from 3,800 mm over the north to 1,800 mm in the extreme south. The potential rainy season for Kerala is the southwest monsoon period, which contributes more than 80% of the annual rainfall. The monsoon rain decreases from the north to the south. In recent years, a trend of decreasing rainfall has been seen both in seasonal rainfall and 10-day extreme rainfall duration. There is significant rainfall variation in north and south Kerala. North and south Kerala have two rainfall distribution sub zones. In north Kerala, northeast monsoon rainfall shows a decreasing trend and contributes about 15% of the annual rainfall. This may adversely affect cultivation of the second rice crop in the area. Southwest monsoon rain, which contributes 82% of the area's total rainfall, does not show any increasing trend. Similarly, in south Kerala, southwest and northeast monsoon rains have decreased by 5% and 8.3%, respectively. Mean annual rainfall is also decreasing in south Kerala. The decreasing rainfall over the region, late onset of the monsoon, failure of the monsoon, and break in the monsoon in the state lead to many drought situations. <br /> Kerala had severe dry spells and droughts in 1983, 1985, 1986, and 1987, even though the state has a wet climate. There were dry spells of 5 and 4 weeks in 1985 and 1986, respectively, during the southwest monsoon period. Damage due to drought was particularly significant in Kerala in 1987. About 1,500 villages in 14 districts were affected, and 9.82 lakh1 hectares of cropland and 6 lakh cattle were also affected. During January-May 1987, the entire Kerala region was affected by drought. About 30% of the Rabi season paddy crop was lost, and cash crops like coconuts, cashews, and bananas were damaged, resulting in a loss of Rs. 1,000 crores.</p> </td> <td width="40%" valign="top"><br><br><br><br><div align="right"><img src="image/map.gif" alt="" width="400" height="430" align="top"></div></td> </tr> </table> <p align="justify"> </p> </td> </tr> </table></td> </tr> </table> </body> </html> <?php include("footer.php"); ?>