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Service Description: The DFIRM Database presents the flood risk information depicted on a given Flood Insurance Rate Map (FIRM) in a digital format suitable for use in electronic mapping applications. The DFIRM database is a subset of the Digital Flood Insurance Study (FIS) database that serves to archive the information collected during the FIS. This map service is a composite of Effective and Preliminary floodplain data. Q3 data is used where neither Effective or Preliminary data is available for a given community. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
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Has Versioned Data: false
MaxRecordCount: 36000
Supported Query Formats: JSON
Supports Query Data Elements: true
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Description:
Copyright Text: MD iMAP, MDE
Spatial Reference:
102100
(3857)
Initial Extent:
XMin: -8965872.70414754
YMin: 4399668.556933155
XMax: -8057911.014880061
YMax: 4963771.914674317
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -8848478.1955
YMin: 4563682.320699997
XMax: -8353651.326300001
YMax: 4825774.610600002
Spatial Reference: 102100
(3857)
Units: esriMeters
Document Info:
Title: MD Floodplain
Author:
Comments: The DFIRM Database presents the flood risk information depicted on a given Flood Insurance Rate Map (FIRM) in a digital format suitable for use in electronic mapping applications. The DFIRM database is a subset of the Digital Flood Insurance Study (FIS) database that serves to archive the information collected during the FIS. This map service is a composite of Effective and Preliminary floodplain data. Q3 data is used where neither Effective or Preliminary data is available for a given community. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual- chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
Subject: Map Service of Maryland Floodplains
Category:
Keywords: MD,Maryland,MD iMAP,Floodplain,HYDR,Hydrology,MDE,MES,FEMA,Maryland Department of Environment,Maryland Environmental Service,Federal Emergency Management Agency,WMS,WFS,KML,Cached,Vector. Preliminary,Effective
AntialiasingMode: null
TextAntialiasingMode: null
Enable Z Defaults: false
Supports ApplyEdits With Global Ids: false
Support True Curves : true
Only Allow TrueCurve Updates By TrueCurveClients : false
Supports Dynamic Layers: false
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