Mapping the Zone: Improving Flood Map Accuracy (Paperback)Board on Earth Sciences and Resources/Mapping Science Committee (author), Committee on FEMA Flood Maps (author), Mapping Science Committee (author), Board on Earth Sciences & Resources (author), Water Science and Technology Board (author), Division on Earth and Life Studies (author), National Research Council (author)
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Federal Emergency Management Agency (FEMA) Flood Insurance Rate Maps portray the height and extent to which flooding is expected to occur, and they form the basis for setting flood insurance premiums and regulating development in the floodplain. As such, they are an important tool for individuals, businesses, communities, and government agencies to understand and deal with flood hazard and flood risk. Improving map accuracy is therefore not an academic question--better maps help everyone.
Making and maintaining an accurate flood map is neither simple nor inexpensive. Even after an investment of more than $1 billion to take flood maps into the digital world, only 21 percent of the population has maps that meet or exceed national flood hazard data quality thresholds. Even when floodplains are mapped with high accuracy, land development and natural changes to the landscape or hydrologic systems create the need for continuous map maintenance and updates.
Mapping the Zone examines the factors that affect flood map accuracy, assesses the benefits and costs of more accurate flood maps, and recommends ways to improve flood mapping, communication, and management of flood-related data.
Publisher: National Academies Press
Number of pages: 136
Weight: 499 g
Dimensions: 279 x 216 x 10 mm
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