FGDC-Compliant Metadata for Q3 Flood Data Coverage Identification_Information Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Q3 Flood Data, MULTNOMAH, OR Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Type_of_File: ARC/INFO Coverage Filename: Q3 Metadata_Filename: c41051m Description Abstract: 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. The specifications for the horizontal control of Q3 Flood Data files are consistent with those required for mapping at a scale of 1:24000. Purpose: The FIRM is 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, the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP. Q3 Flood Data files are intended to convey certain key features from the existing hard copy FIRM to provide users with automated flood risk data. 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 Special Flood Hazard Areas (SFHAs). More detailed information may be obtained from the paper FIRM. Time_Period_of_content Single Date/Time Calendar_Date: 1996 Currentness_Reference: Publication date of sources Status Progress: Complete Maintenance_and_Update_Frequency: Irregular Spatial_Domain Bounding_Coordinates West_Bounding_Coordinate: -122.9280367844 East_Bounding_Coordinate: -121.8184888256 North_Bounding_Coordinate: 45.72886336933 South_Bounding_Coordinate: 45.43274062568 Keywords Theme Theme_Keyword_Thesaurus: None Theme_Keyword: FEMA Flood Hazard Zones Theme_Keyword: Q3 Flood Data Theme_Keyword: Q3 Coverage Theme_Keyword: Special Flood Hazard Areas Theme_Keyword: Digital Flood Insurance Rate Maps Place Place_Keyword_Thesaurus: None Place_Keyword: MULTNOMAH Place_Keyword: OR Place_Keyword: USA Access_Constraints: None Use_Restrictions: None. Acknowledgement of the Federal Emergency Management Agency would be appreciated in products derived from these data. Point_of_Contact Contact_Organization_Primary Contact_Organization: Federal Emergency Management Agency Contact_Position: Mitigation Directorate Contact_Address Address_Type: mailing address Address: 500 C Street, S.W. City: Washington State_or_Province: District of Columbia Postal_Code: 20472 Country: USA Contact_Voice_Telephone: 1-800-358-9616 Security Information Security_Classification: UNCLASSIFIED Native_Data_Set_Environment: Original data development environment varies. Additional manipulation, topological structuring, and attribute encoding were undertaken using ARC/INFO (version 7.0.3) software on SUN SparcStation in an UNIX environment. Cross_Reference Cross_Reference_Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, MULTNOMAH, OR Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Data_Quality_Information Attribute_Accuracy Attribute_Accuracy_Report: The Q3 Flood Data are countywide vector files derived from the FEMA Flood Insurance Rate Maps (FIRMS). The attribute definitions may be found in the "Q3 Flood Data Specfications". Attribute accuracy was tested by manual comparison of source graphic with hardcopy plots and a symbolizied display on an interactive computer graphic system. Selected attributes that could not be visually verified were individually queried. In addition, an ARC/INFO Arc Macro Language (AML) software program was applied to the dataset to test the attributes against a master set of valid attributes for the specific data category, and a complete set of valid attribute combinations. (See also Entity Attribute Information). Quantitative_Attribute_Accuracy_Assessment Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. Logical_Consistency_Report: Polygon and chain-node topology are present. Certain node-area-line relationships are collected or generated to satisfy topological requirements. Some of these requirements include: lines must begin and end at nodes, lines must connect to each other at nodes, lines do not extend through nodes, left and right areas are defined for each line segment and are consistent throughout the files, and the lines representing the limits of the file neatlines are free of gaps. Tests of logical consistency were performed by ARC/INFO software modules. Check plots were made to test for leaks in all internal polygons. Completeness_Report: Data completeness for Q3 Flood Data files reflect the content of the source graphic. Features may have been eliminated or generalized on the source graphic, due to scale and legibility constraints. Flood risk data are developed for communities participating in the NFIP, for use in insurance rating, and for floodplain management. Flood hazard areas are determined using statistical analysis of records of river flow, storm tides, and rainfall; information obtained through consultation with the communities: floodplain topographic surveys; and hydrological and hydraulic analysis. Both detailed and approximate analyses are employed. Generally, detailed anaylses are used to generate flood risk data only for developed or developing areas of communities. For undeveloped areas where little or no development is expected to occur, FEMA uses approximate analyses to generate flood risk data. Typically, only drainage areas that are greater than one square mile are studied. The Q3 Flood Data coverages may be derived from DFIRM-DLGs, from FIRM- DLGs, from FIRMs digitized previously for emergency applications, or may be newly created files. In Q3 Flood Data derived from older data sets, certain items may not have been captured or may have been captured differently from the current Q3 Flood Data specifications. In some cases, preliminary FIRM data have been included in the Q3 Flood Data files. These data have been provided to the community for their review and comment and may be subject to change before their final publication date. In addition, in some cases areas designated as Flood Prone Areas on maps prepared by USGS and FIA have been included in the Q3 Flood Data files. These areas were delineated based on available information on past floods and are described by a unique attribute code that distinquishes them from areas of 1% annual chance of flooding derived from FIRMs. Flood Insurance Rate Maps continually undergo revisions and updates. Some of these revisions are effected by letter (Letter of Map Revision (LOMR), Letter of Map Amendment (LOMA)). Q3 Flood Data may not reflect the most current information or information that is not mappable at the publication scale of FIRM. To obtain the latest information, contact the address listed under distributor. Positional_Accuracy Horizontal_Positional_Accuracy Horizontal_Positional_Accuracy_Report: Specifications for the digitizing of FIRMs to create the Q3 Flood Data are consistent with those requirements for mapping at a scale of 1:24000. Horizontal control of Q3 Flood Data was established using USGS quadrangle maps at 1:24000 or other standard scales. Users should assess the horizontal positional sources and the requirements of their application. With increased frequency, large-scale spatial data sets are becoming widely available for computer-based geographic information systems. Q3 Flood Data may be used in combination with other digital spatial data, however, users should be aware that scalar enlargements do not enhance the relative accuracy of the Q3 Flood Data (i.e. 1:24000). Lineage Source Information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, MULTNOMAH COUNTY Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101790030B,0035B,0040B,0045B,0065B,0135B,0155B,0160B,0180B,0185B,0195B, 0214B,0215B,0217B,0220B,0360B,0379B,0381B,0382B,0401B Source_Scale_Denominator: 6000-24000 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19860318 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM1 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, MULTNOMAH COUNTY Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101790100A,0128A,0129A,0130A,0205A,0210A,0230A,0238A,0240A,0245A,0275A, 0300A,0325A,0370A,0403A,0406A,0407A,0409A,0428A,0429A,0450A Source_Scale_Denominator: 6000-24000 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19820615 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM2 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, CITY OF FAIRVIEW Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101800001D Source_Scale_Denominator: 7200 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19950703 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM3 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, CITY OF GRESHAM Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101810004F Source_Scale_Denominator: 4800 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19960216 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM4 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, CITY OF GRESHAM Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101810002E,0003E,0005E,0006E Source_Scale_Denominator: 4800 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19900928 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM5 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, CITY OF MILWAUKIE Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4100190001B,0002B Source_Scale_Denominator: 4800 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19800618 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM6 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, CITY OF PORTLAND Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101830010D,0020D,0025D,0047D,0049D,0065A Source_Scale_Denominator: 4800,9600 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19860103 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM7 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, CITY OF PORTLAND Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101830005C,0015C,0035C,0045C,0046C,0048C,0051C,0052C Source_Scale_Denominator: 4800,9600 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19821019 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM8 Source_Contribution: spatial and attribute information Source Citation Originator: Federal Emergency Management Agency Publication_Date: 1996 Title: Flood Insurance Rate Map, CITY OF TROUTDALE Geospatial_Data_Presentation_Form: map Publication_Information Publication_Place: Washington, DC Publisher: Federal Emergency Management Agency Other Citation Details: Panels: 4101840005C Source_Scale_Denominator: 12000 Type_of_Source_Media: paper Source_Time_Period_of_Content Single_Date/Time Calendar_Date: 19880930 Source_Currentness_Reference: Effective Date Source_Citation_Abbreviation: FIRM9 Source_Contribution: spatial and attribute information Process_Step Process Description: Q3 Flood Data format was produced by either scanning or manually digitizing a hardcopy version of the graphic materials. The scanning process captured the digital data and the resulting raster data was vectorized and attributed on an interactive editing station. Manual digitizing used a digitizing table to capture the digital data; attribution was performed either as the data was digitized or on an interactive edit station after the digitizing was completed. The determination of the production methodology was based on various criteria, including availability of production systems. Four control points corresponding to the four corners of the map were used for registration during manual digitizing. A projection transformation was performed on the coordinates used in the data collection and editing systems to register the digital data to the Universal Transverse Mercator (UTM) grid coordinates. The ARC/INFO coverage of the Q3 Flood Data was generated, and it was also used to create the Q3-DLG file. The Q3 Flood Data was checked for position and attribute accuracy by comparing plots of the digital data to the graphic source and by symbolizing display on an interactive computer graphic system. Selected attributes that could not be visually verified were individual queried. In addition, an ARC/INFO Arc Macro Language (AML) software program was applied to the dataset to test the attributes against a master set of valid attributes for the specific data category and a complete set of valid attribute combinations. Source graphics were revised to reflect updates effected by Letters of Map Change (Letter of Map Revision (LOMR), Letter of Map Amendment (LOMA)). These revisions were included in the Q3 Flood Data if they were mappable at the publication scale of the source graphic. Once final, the ARC/INFO coverage was projected into a geographic grid system using decimal degree latitude and longitude coordinates and then converted into an ARC/INFO export file and MapInfo native table files. In addition, the ARC/INFO coverage in UTM coordinates was converted into a Digital Line Graph file. All final files were checked for logical consistency and completeness. Source_Used_Citation_Abbreviation: FIRM1 - FIRM9 Process_Date: 1996 Spatial_Data_Organization_Information Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information SDTS_Terms_Description SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 1326 SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 3687 SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 1327 Spatial_Reference_Information Horizontal_Coordinate_System_Definition Geographic Latitude Resolution: .000009 Longitude Resolution: .000009 Geographic_Coordinate_Units: Decimal Degrees Geodetic Model Horizontal_Datum_Name: NAD27 Ellipsoid_Name: CLARKE 1866 Semi-major Axis: 6378206.4 Denominator of Flattening Ratio: 294.98 Entity_Attribute_Information Detailed_Description Number_of_Attributes_in_Entity: 21 Entity_Type Entity_Type_label: Q3.PAT Entity_Type_Definition: Polygon attribute table comprising 21 items. Entity_Type_Definition_Source: Printed FIRM Maps, Digital Data Sources, or other information as appropriate. Attribute Attribute_Label: - Attribute_Definition: Attribute table of Q3. Attribute_Definition_Source: ARC/INFO Attribute Attribute_Label: AREA Attribute_Definition: Area of polygon/region in square coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: PERIMETER Attribute_Definition: Perimeter of poly/region in coverage units Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Positive real numbers Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: Q3# Attribute_Definition: Internal feature number Attribute_Definition_Source: Computed Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Sequential unique positive integer Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: Q3-ID Attribute_Definition: User-assigned feature number Attribute_Definition_Source: User-defined Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Integer Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: FIPS Attribute_Definition: Standard 5-digit State and County FIPS codes Attribute_Definition_Source: Federal Information Processing Standard (FIPS), National Institute of Standards & Technology (NIST) Attribute_Domain_Values Codeset_Domain: Federal Information Processing Standard (FIPS) Codeset_Source: National Institute of Standards & Technology (NIST) Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: COMMUNITY Attribute_Definition: Identifies a county, city, or other community responsible for floodplain management. Numeric value assigned by FEMA. Attribute_Definition_Source: FEMA Flood Insurance Rate Maps Attribute_Domain_Values Range_Domain Range_Domain_Minimum: 0 Range_Domain_Maximum: 9999 Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: FIRM_PANEL Attribute_Definition: Eleven-digit code identifies portion of community covered or not covered by FIRM panel. Attribute_Definition_Source: FEMA FIRM Panels Attribute_Domain_Values Unrepresentable_Domain: Codes comprises a unique alpha-numeric sequence based on FIPS and FEMA Community and Panel IDs. Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: QUAD Attribute_Definition: USGS quadrangle identifier Attribute_Definition_Source: USGS topographic quadrangle index Attribute_Domain_Values Unrepresentable_Domain: Unique sequence based on latitude and longitude. Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: ZONE Attribute_Definition: Flood hazard zone designation Attribute_Definition_Source: FEMA FIRM Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Multiple codes-refer to "Q3 Flood Data Specifications document" Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute: Attribute_Label: FLOODWAY Attribute_Definition: Channel, river, or watercourse reserved for discharge. Attribute_Definition_Source: FEMA FIRM Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Multiple codes-refer to "Q3 Flood Data Specifications document" Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: COBRA Attribute_Definition: Undeveloped Coastal Barrier Resources Act area - no flood insurance available. Attribute_Definition_Source: FEMA FIRM Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Multiple codes-refer to "Q3 Flood Data Specifications document" Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: SFHA Attribute_Definition: In/Out of flood zone designation Attribute_Definition_Source: Determined from data topology Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: IN or OUT of SFHA (Special Flood Hazards Area) or within area not included Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: SYMBOL Attribute_Definition: Polygon shade symbols for graphic output Attribute_Definition_Source: Based on polygon codes Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Multiple codes-refer to "Q3 Flood Data Specifications document" Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: PANEL_TYP Attribute_Definition: Type of FIRM panel represented Attribute_Definition_Source: FEMA FIRM Attribute_Domain_Values Enumerated_Domain Enumerated_Domain_Value: Multiple codes-refer to "Q3 Flood Data Specifications document" Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: ST-FIPS Attribute_Definition: State FIPS code Attribute_Definition_Source: Federal Information Processing Standard (FIPS) - (NIST) Attribute_Domain_Values Codeset_Domain: Federal Information Processing Standard (FIPS) Codeset_Source: National Institue of Standards & Technology (NIST) Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: CO-FIPS Attribute_Definition: County FIPS code Attribute_Definition_Source: Federal Information Processing Standard (FIPS) - (NIST) Attribute_Domain_Values Codeset_Domain: Federal Information Processing Standard (FIPS) Codeset_Source: National Institue of Standards & Technology (NIST) Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: STATE Attribute_Definition: State FIPS code Attribute_Definition_Source: Federal Information Processing Standard (FIPS) - (NIST) Attribute_Domain_Values Codeset_Domain: Federal Information Processing Standard (FIPS) Codeset_Source: National Institue of Standards & Technology (NIST) Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: PCOMM Attribute_Definition: FIRM Community/County Identifier Attribute_Definition_Source: FEMA FIRM Attribute_Domain_Values Unrepresentable_Domain: Unique sequence based on FIPS & FEMA Panel IDs Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: PANEL Attribute_Definition: FIRM Panel number and suffix (key to RFIRM files) Attribute_Definition_Source: FEMA FIRM Attribute_Domain_Values Unrepresentable_Domain: Unique sequence based on FIPS & FEMA Panel IDs Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: LAT Attribute_Definition: Origin latitude (degrees) of 7.5 minute quadrangle Attribute_Definition_Source: USGS quadrangle index Attribute_Domain_Values Range_Domain Range_Domain_Minimum: +0000 Range_Domain_Maximum: +0090 Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: LONG Attribute_Definition: Origin longitude (degrees) of 7.5 minute quadrangle Attribute_Definition_Source: USGS Quadrangle Index Attribute_Domain_Values Range_Domain Range_Domain_Minimum: -0180 Range_Domain_Maximum: +0180 Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Attribute Attribute_Label: QUAD_UNIT Attribute_Definition: Index number to 7.5 minute quadrangle Attribute_Definition_Source: USGS Quadrangle Index Attribute_Domain_Values Unrepresentable_Domain: Unique numeric sequence Attribute_Value_Accuracy_Information Attribute_Measurement_Frequency: Unknown Overview_Description 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. Entity_and_Attribute_Detail_Citation: The FEMA "Q3 Flood Data Specifications" contain a detailed description of each attribute code and a reference to other relevant information. Distribution_Information Distributor Contact_Information Contact_Organization_Primary Contact_Organization: FEMA, Map Service Center Contact_Address Address_Type: mailing address Address: 6730 Santa Barbara Court City: Baltimore State_or_Province: Maryland Postal_Code: 21227-5832 Country: USA Contact_Voice_Telephone: 1-800-358-9616 Contact_Instructions: Data requests should include the full name of the community or county and the Flood Insurance Rate Map panel number(s) or the 7.5 minute quadrangle sheet area(s) covered by the request. Distribution_Liability: No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of distribution constitute any such warranty. FEMA will warrant the delivery of this product in a computer-readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site. Standard_Ordering_Process Non-digital_Form: Printed Digital Flood Insurance Rate Maps that match this data set are available from FEMA at the Map Service Center, cited above. Digital_Form: ARC/INFO Export File Format Digital_Transfer_Options Online_Option Computer_Contact_Information Network_Address Network_Resource_Name: http://www.fema.gov Dialup_Instructions: Access_Instructions: Online_Computer_Operating_System: Offline_Option Offline_Media: CD-ROM Recording_Format: ISO 9660 Metadata_Reference_Section Metadata_Date: 960529 Metadata_Contact Contact_Organization_Primary: Federal Emergency Management Agency Contact_Position: Mitigation Directorate Contact_Address Address_type: mailing address Address: 500 C Street, S.W. City: Washington State_or_Province: District of Columbia Postal_Code: 20472 Country: USA Contact_Voice_Telephone: 1-800-358-9616 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Time_Convention: Local Time Metadata_Security_Information Metadata_Security_Classification_System: None Metadata_Security_Classification: UNCLASSIFIED Metadata_Security_Handling_Description: None