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Conventional flood hazard maps, like the FEMA Flood Insurance Rate Map (FIRM) series, examine only the hazard posed by standing floodwaters on a given... |
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Conventional flood hazard maps, like the FEMA Flood Insurance Rate Map (FIRM) series, examine only the hazard posed by standing floodwaters on a given... |
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John T. English, Daniel E. Coe, and Robert D. Chappell |
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5000 |
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[] |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This layer represents the Channel Migration Zone along the Sandy River based on analysis designed by Rapp and Abbe, 2003. The Channel Migration Zone (CMZ) represents the cumulative product of historical analysis and morphological interpretations characterized by the following equation: CMZ = HMZ + AHZ + EHA - DMA.</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This data depicts channel migration zones and associated hazards based on interpretation of serial aerial photography and lidar elevation data. Migration paths/zones and hazard areas were created using methods and protocols defined by Rapp and Abbe (2003). This data cannot serve as a substitute for site-specific investigations by qualified practitioners. Site-specific data may yield results that differ from those shown on this map. This product is for informational purposes and may not have been prepared for or be suitable for legal, engineering, or survey purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the informationn.</SPAN></P></DIV></DIV></DIV> |
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Upper Sandy River Channel Migration Zone (CMZ) |
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["CMZ","inlandWaters","Sandy River","Oregon","channel migration zone","geoscientificInformation","Clackamas County","Multnomah County"] |
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en-US |
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150000000 |
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