WMS:Flood Barrier: Difference between revisions

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A flood barrier coverage represents natural or artificial barriers that are not represented explicitly in the elevations of a TIN. The [[WMS:Overview of Flood Plain Delineation|flood plain delineation process]] can then use these barriers while interpolating water surface elevations across a TIN surface. The resultant flood depth will be closer to reality rather than a mere interpolation. For example, an embankment or a road is not always represented in a TIN.
A flood barrier coverage represents natural or artificial barriers that are not represented explicitly in the elevations of a TIN. The [[WMS:Overview of Floodplain Delineation|floodplain delineation process]] can then use these barriers while interpolating water surface elevations across a TIN surface. The resultant flood depth will be closer to reality rather than a mere interpolation. For example, an embankment or a road is not always represented in a TIN.


==Create Flood Barrier Coverage==
==Create Flood Barrier Coverage==
This option allows you to incorporate flood barriers through a coverage representing natural or artificial barriers that are not represented explicitly in the elevations of a TIN. [[WMS:Delineate Flood Plain|The floodplain delineation process considers these barriers during water level interpolation]]. The resulting flood depth will be closer to reality, rather than a mere interpolation. For example, an embankment or a road is not always represented in a DTM. In order to delineate a floodplain properly, these barriers must be considered in a hydraulic model as well as in the floodplain delineation process. This option not only incorporates such existing barriers in the process, it also provides the flexibility so that they can be considered proposed structures and evaluate the “what if” scenarios.
This option allows incorporating flood barriers through a coverage representing natural or artificial barriers that are not represented explicitly in the elevations of a TIN. [[WMS:Delineate Floodplain|The floodplain delineation process considers these barriers during water level interpolation]]. The resulting flood depth will be closer to reality, rather than a mere interpolation. For example, an embankment or a road is not always represented in a DTM. In order to delineate a floodplain properly, these barriers must be considered in a hydraulic model as well as in the floodplain delineation process. This option not only incorporates such existing barriers in the process, it also provides the flexibility so that they can be considered proposed structures and evaluate the “what if” scenarios.
 
Note: This is not equivalent to actually running a hydraulic model with the "proposed" embankment or structure, but will limit the flood plain delineation from proceeding beyond, or at least force calculated flow paths to go around.


Note: This is not equivalent to actually running a hydraulic model with the "proposed" embankment or structure, but will limit the floodplain delineation from proceeding beyond, or at least force calculated flow paths to go around.


==Related Topics==
==Related Topics==
* [[WMS:Coverages|Coverages]]
* [[WMS:Coverages|Coverages]]
* [[WMS:Overview of Flood Plain Delineation|Overview of Flood Plain Delineation]]
* [[WMS:Overview of Floodplain Delineation|Overview of Floodplain Delineation]]
* [[WMS:Flow Paths and Barrier Coverages|Flow Paths and Barrier Coverages]]
* [[WMS:Flow Paths and Barrier Coverages|Flow Paths and Barrier Coverages]]
* [[WMS:Delineate Flood Plain|Delineate Flood Plain]]
* [[WMS:Delineate Floodplain|Delineate Floodplain]]




{{WMSMain}}
{{WMSMain}}


[[Category:WMS Map|F]]
[[Category:WMS Map|Flood Barrier]]
[[Category:WMS Coverages|F]]
[[Category:WMS Coverages|F]]
[[Category:Floodplain|Flood Barrier]]
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Latest revision as of 15:26, 31 January 2017

A flood barrier coverage represents natural or artificial barriers that are not represented explicitly in the elevations of a TIN. The floodplain delineation process can then use these barriers while interpolating water surface elevations across a TIN surface. The resultant flood depth will be closer to reality rather than a mere interpolation. For example, an embankment or a road is not always represented in a TIN.

Create Flood Barrier Coverage

This option allows incorporating flood barriers through a coverage representing natural or artificial barriers that are not represented explicitly in the elevations of a TIN. The floodplain delineation process considers these barriers during water level interpolation. The resulting flood depth will be closer to reality, rather than a mere interpolation. For example, an embankment or a road is not always represented in a DTM. In order to delineate a floodplain properly, these barriers must be considered in a hydraulic model as well as in the floodplain delineation process. This option not only incorporates such existing barriers in the process, it also provides the flexibility so that they can be considered proposed structures and evaluate the “what if” scenarios.

Note: This is not equivalent to actually running a hydraulic model with the "proposed" embankment or structure, but will limit the floodplain delineation from proceeding beyond, or at least force calculated flow paths to go around.

Related Topics