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Q3 flood data, New York
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- Federal Emergency Management Agency
- Publication Date
- 19980101
- Title
- Q3 flood data, New York
- Geospatial Data Presentation Form
- vector digital data
- Publication Information
- Publication Place
- 500 C Street SW, Washington, DC, 20472, US
- Publisher
- Federal Emergency Management Agency
- Online Linkage
- https://figgy.princeton.edu/downloads/80b25b88-806e-40c8-9d00-0096be948c16/file/a3c62c57-f61b-4682-98cb-9816609f46c3
- Abstract
- Q3 flood data for New York, 1996. The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMs) published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using geographic projection and decimal degree coordinate system. Specifications for the horizontal control of Q3 Flood Data files are consistent with those required for mapping at a scale of 1:24000.
- Purpose
- Q3 Flood Data files are intended to convey certain key features from existing hard copy FIRMs to provide users with automated flood risk data. The Flood Insurance Rate Maps (FIRMs) are the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "requires the puchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards" (Section 2 (b) (4) of the 1973 Flood Disaster Protection Act). In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP. For Q3 Flood Data files, edge-matching errors, overlaps and deficiencies in coverage, and similar problems are not corrected during digitizing or post-processing. These data may be used to locate SFHAs. More detailed information may be obtained from the paper FIRMs.
- Temporal Extent
- Currentness Reference
- Publication date by FEMA.
- Bounding Box
- West
- -79.762366
- East
- -71.777985
- North
- 44.402998
- South
- 40.474941
- Theme Keyword
- flood
- floods
- risk
- insurance
- FEMA
- FEMA flood hazard zones
- Q3
- Q3 flood data
- Q3 coverage
- Special Flood Hazard Areas
- SFHAs
- digital flood insurance rate maps
- Theme Keyword Thesaurus
- None
- Theme Keyword
- inlandWaters
- Theme Keyword Thesaurus
- ISO 19115 Topic Categories
- Place Keyword
- New York
- Albany County
- Allegany County
- Broome County
- Cattaraugus County
- Cayuga County
- Chautauqua County
- Chemung County
- Chenango County
- Columbia County
- Cortland County
- Delaware County
- Dutchess County
- Erie County
- Genesee County
- Herkimer County
- Jefferson County
- Livingston County
- Madison County
- Monroe County
- Nassau County
- New York County
- Niagara County
- Oneida County
- Onondaga County
- Ontario County
- Orange County
- Oswego County
- Rensselaer County
- Rockland County
- Saratoga County
- Steuben County
- Suffolk County
- Sullivan County
- Tioga County
- Tompkins County
- Ulster County
- Wayne County
- Westchester County
- Albany
- Allegany
- Broome
- Cattaraugus
- Cayuga
- Chautauqua
- Chemung
- Chenango
- Columbia
- Cortland
- Delaware
- Dutchess
- Erie
- Genesee
- Herkimer
- Jefferson
- Livingston
- Madison
- Monroe
- Nassau
- New York
- Niagara
- Oneida
- Onondaga
- Ontario
- Orange
- Oswego
- Rensselaer
- Rockland
- Saratoga
- Steuben
- Suffolk
- Sullivan
- Tioga
- Tompkins
- Ulster
- Wayne
- Westchester
- Place Keyword Thesaurus
- None
- Access Restrictions
- None
- Use Restrictions
- Data are licensed to Princeton University-affiliated persons only.
- Status
- Complete
- Maintenance and Update Frequency
- Irregular
- Point of Contact
- Contact Organization
- Map and Geospatial Information Center, Lewis Library, Princeton University
- Delivery Point
- Map and Geospatial Information Center, Lewis Library, Princeton University
- City
- Princeton
- State
- NJ
- Postal Code
- 08544
- Country
- US
- Point of Contact
- Contact Organization
- Federal Emergency Management Agency, Mitigation Directorate
- Delivery Point
- 500 C Street SW
- City
- Washington
- State
- DC
- Postal Code
- 20472
- Credit
- FEMA/GIS Data Depot
- Native Data Set Environment
- Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.0.3348
- Data Quality Information
- Quantitative Attribute Accuracy Assessment
- Quantitative Horizontal Positional Accuracy Assessment
- Lineage
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- GT-polygon composed of chains
- Point and Vector Object Count
- 75468
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 8.9830550972891565e-009
- Longitude Resolution
- 8.9830550972891565e-009
- Geographic Coordinate Units
- Decimal Degrees
- Geodetic Model
- Horizontal Datum Name
- D North American 1927
- Ellipsoid Name
- Clarke 1866
- Semi-major Axis
- 6378206.4
- Denominator of Flattening Ratio
- 294.9786982
- Entity and Attribute Information
-
- Entity Type
- Entity Type Label
- Q3_FloodData_NY
- Entity Type Definition
- Polygon attribute table comprising 20 items.
- Entity Type Definition Source
- FEMA FIRM, digital data sources, or other information as appropriate.
- Attributes
-
- FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Shape
- Feature geometry. (Coordinates defining the features.)
- FIPS
- This item contains the five-digit State and County FIPS code, as defined in the Federal Information Processing Standard Publication 6-4, published by the National Institute of Standards and Technology. The State and County FIPS codes are further separated by the redefined items ST_FIPS and CO_FIPS. (Federal Information Processing Standard (FIPS)National Institute of Standards Technology (NIST))
- COMMUNITY
- This item contains the four-digit community identification number assigned by FEMA to each community that participates in the NFIP. This number may be found in the title block of each FIRM panel, or in the NFIP Community Status Book. (0 to 9999)
- FIRM_PANEL
- This item contains the eleven-digit FIRM panel number. The FIRM panel number is found in the title block of each FIRM panel. The FIRM panel number is further separated into its components by the redefined items STATE (contains the State FIPS code), PCOMM (for countywide panels, this is the County FIPS code plus the letter "c"; for community based panels, this is the community identification number), and PANEL (the panel number and suffix). (Code comprises a unique alpha-numeric sequence based on FIPS and FEMA Community and Panel identification numbers. )
- QUAD
- This item contains the eight-digit USGS quadrangle identification number. It identifies the alphanumeric map sheet identifier used by the USGS. The list of values for each state is published by USGS in the State Indexes to Topographic and Other Map Coverage. This item is further separated into its components by three redefined items. They are LAT (the latitude, rounded down to the nearest whole degree, of the 7.5-minute quadrangle map sheet), LONG (the longitude, rounded down to the nearest whole degree, of the 7.5-minute quadrangle map sheet), and QUAD_UNIT (the alphanumeric map sheet identifier used by USGS, A1 through H8). (Unique sequence based on latitude and longitude.)
- ZONE
- This item contains a representation of the flood hazard zone designator.
- FLOODWAY
- This item contains a representation of the floodway type (channel, river, or watercourse reserved for flood discharge). Floodway, Flowage Easement, and State Encroachment Areas are included in the Q3 Flood Data files if they are portrayed on the source graphic (the FIRM) used for data capture. If they are portrayed on a separate map panel (the Flood Boundary Floodway Map), they will not be included in the Q3 Flood Data files.
- COBRA
- This item indicates whether the area is inside or outside of a designated Coastal Barrier Resources System Area (COBRA). Only the extents of the Coastal Barrier Resources System Area boundaries are portrayed in the Q3 Flood Data files. The boundaries between Coastal Barrier Resources System areas with different designation dates are not included in the Q3 Flood Data files. Users should refer to the FIRM for such information.
- SFHA
- This item indicates whether the area is in or out of the Special Flood Hazard Area (SFHA). It is derived from the area's flood hazard zone designation. The SFHA definitions that correspond with each of the flood hazard zone types are given in the enumerated ZONE values.
Please note that areas whose ZONE is listed as Area Not Included (ANI) are given the SFHA attribute of "OUT," even though their SFHA designation is unknown at this time.
- SYMBOL
- This item represents a polygon shade symbol (for graphic output) that is unique to the Zone, Floodway, and COBRA area definitions. Users should note that in order to replicate these colors, a Q3 Flood Data Shadeset must be installed. (Unique numbers corresponding to unique permutations of ZONE, FLOODWAY, COBRA, and SFHA values. Refer to the definitions of individual ZONE values for their corresponding SYMBOL values.)
- PANEL_TYP
- This item contains a representation of the FIRM panel type.
- ST_FIPS
- State FIPS code.
[For more information refer to FIPS attribute.] (Federal Information Processing Standard (FIPS)National Institute of Standards Technology (NIST))
- CO_FIPS
- County FIPS code.
[For more information refer to FIPS attribute.] (Federal Information Processing Standard (FIPS)National Institute of Standards Technology (NIST))
- STATE
- State FIPS code.
[For more information refer to FIRM_PANEL attribute.] (Federal Information Processing Standard (FIPS)National Institute of Standards Technology (NIST))
- PCOMM
- FIRM Community/County Identifier.
[For more information refer to FIRM_PANEL attribute.] (Code comprises a unique alpha-numeric sequence based on FIPS and FEMA Community and Panel identification numbers.)
- PANEL
- FIRM Panel number and suffix.
[For more information refer to FIRM_PANEL attribute.] (Unique sequence based on FEMA FIRM.)
- LAT
- Origin latitude (degrees) of 7.5-minute quadrangle.
[For more information refer to QUAD attribute.] (0 to 90)
- LONG
- Origin longitude (degrees) of 7.5-minute quadrangle.
[For more information refer to QUAD attribute.] (-180 to 180)
- QUAD_UNIT
- Index number to 7.5 minute quadrangle.
[For more information refer to QUAD attribute.] (Unique numeric sequence.)
- Entity and Attribute Overview
- In addition to locational and topological information, Q3 Flood data elements are explicitly encoded using attribute items. Each attribute item identifies characteristics about the Flood Hazard Area, COBRA, Floodway, Political Jurisdiction, Quadrangle, or FIRM panel. All polygon data elements may be encoded with one or more feature characteristics.
- Distribution Information
- Format Name
- ARC/INFO Coverage Format
- Distributor
- Federal Emergency Management Agency, Map Service Center
- Online Access
- http://www.fema.gov
- Name
- Metadata Reference Information
- Metadata Date
- 20150312
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Map and Geospatial Information Center, Lewis Library, Princeton University
- Contact Address
- Address
- Map and Geospatial Information Center, Lewis Library, Princeton University
- City
- Princeton
- State or Province
- NJ
- Postal Code
- 08544
- Country
- US
- Contact Voice Telephone
- 609-258-1097
- Metadata Standard Name
- FGDC Content Standard for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998