Background Cyclones and storm surges threaten coastal communities worldwide. The World Meteorolog... more Background Cyclones and storm surges threaten coastal communities worldwide. The World Meteorological Organization defines a tropical cyclone as "a non-frontal synoptic scale cyclone originating over tropical or subtropical waters with organized convection and definite cyclonic surface wind circulation." (1) More specifically, a storm in the south-east Indian Ocean is cyclonic when the sustained wind speed is more than 33 nautical miles per hour (> 62 km/h). The storm surge represents a major cause of death and injury during a cyclone. A storm surge is the difference between the water level under the influence of a disturbance (storm tide) and the normal level that would have been reached in the absence of the meteorological disturbance. (2) Over the past two centuries, around two million people worldwide have died and millions have been injured as a result of tropical storms, including cyclones, hurricanes and typhoons. (3) Globally, the number of cyclones has increase...
After the devastating flood of 1988, the government adopted a program under FAP-8B to protect Dha... more After the devastating flood of 1988, the government adopted a program under FAP-8B to protect Dhaka city from flooding. It included two-part coordinated action plan, namely FAP-8A & FAP-8B. The project “FAP-8B” covered 136.5 sq. km of western part of Dhaka and the primary objective was to provide a relatively flood free and secured living environment. Proposals of FAP-8B focused on construction of retention ponds with pumping facilities and rehabilitation of 21 major natural canals having a total length of 78.6 km. The FAP-8B project started in 1991 and completed by 1997. This paper studied the land use changes within the designated retention pond areas and canals in the FAP-8B area through interpretation of satellite images and data on physical features. The study used satellite images of the years 1989, 1999, 2004, 2007, RS (Revenue Survey) maps and land use maps of Detailed Area Plan (DAP). Findings of the study revealed that proposed 4.5% retention pond areas of FAP-8B has been ...
Background Cyclones and storm surges threaten coastal communities worldwide. The World Meteorolog... more Background Cyclones and storm surges threaten coastal communities worldwide. The World Meteorological Organization defines a tropical cyclone as "a non-frontal synoptic scale cyclone originating over tropical or subtropical waters with organized convection and definite cyclonic surface wind circulation." (1) More specifically, a storm in the south-east Indian Ocean is cyclonic when the sustained wind speed is more than 33 nautical miles per hour (> 62 km/h). The storm surge represents a major cause of death and injury during a cyclone. A storm surge is the difference between the water level under the influence of a disturbance (storm tide) and the normal level that would have been reached in the absence of the meteorological disturbance. (2) Over the past two centuries, around two million people worldwide have died and millions have been injured as a result of tropical storms, including cyclones, hurricanes and typhoons. (3) Globally, the number of cyclones has increase...
After the devastating flood of 1988, the government adopted a program under FAP-8B to protect Dha... more After the devastating flood of 1988, the government adopted a program under FAP-8B to protect Dhaka city from flooding. It included two-part coordinated action plan, namely FAP-8A & FAP-8B. The project “FAP-8B” covered 136.5 sq. km of western part of Dhaka and the primary objective was to provide a relatively flood free and secured living environment. Proposals of FAP-8B focused on construction of retention ponds with pumping facilities and rehabilitation of 21 major natural canals having a total length of 78.6 km. The FAP-8B project started in 1991 and completed by 1997. This paper studied the land use changes within the designated retention pond areas and canals in the FAP-8B area through interpretation of satellite images and data on physical features. The study used satellite images of the years 1989, 1999, 2004, 2007, RS (Revenue Survey) maps and land use maps of Detailed Area Plan (DAP). Findings of the study revealed that proposed 4.5% retention pond areas of FAP-8B has been ...
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