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. "Front Matter." Mapping the Zone: Improving Flood Map Accuracy. Washington, DC: The National Academies Press, 2009.
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SUMMARY
1
INTRODUCTION
7
Committee Charge and Approach,
Case Studies,
9
Organization of the Report,
11
2
FLOOD MAPPING AND FLOOD INSURANCE
13
Flood Insurance Rate Maps,
Flood Map Production,
16
FEMA’s Map Modernization Program,
19
Map Maintenance,
20
Flood Map Information Technology,
22
Flood Data and a National Hydrologic Information System,
3
ELEVATION AND HEIGHT DATA
25
Establishing a Reference Surface,
Establishing Base Surfaces,
29
Measuring and Monitoring Water Surface Elevations,
32
Surveying Structure Elevations,
34
Impact of Elevation Uncertainties in a Flood Study,
36
Conclusions,
38
4
INLAND FLOODING
41
Uncertainty of the Base Flood Elevation at Stream Gages,
42
Determining the Flood Discharge,
46
USGS Regional Regression Equations,
49
Hydraulic Models,
55
North Carolina Flood Mapping Case Study,
59
Shallow Flooding,
65
66
