USGS 1:24,000 HYDROGRAPHY - LINES

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: United States Geological Survey (USGS)
Publication_Date: ongoing
Title: USGS 1:24,000 HYDROGRAPHY - LINES
Geospatial_Data_Presentation_Form: Shapefile
Other_Citation_Details: State of Florida
Online_Linkage: <http://www.usgs.gov>
Description:
Abstract:
This dataset contains Hydrological Line Features from the USGS 1:24000 scale DLG's.

This dataset has been updated from the previous version on FGDL 3.0.

Purpose:
The DLG's were intended to depict information about geographic features on or near the surface of the Earth. These data were collected as part of the National Mapping Program.
Supplemental_Information: line
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: ongoing
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -82.663385
East_Bounding_Coordinate: -82.040266
North_Bounding_Coordinate: 29.939313
South_Bounding_Coordinate: 29.422649
Keywords:
Theme:
Theme_Keyword_Thesaurus: NONE
Theme_Keyword: hydrology
Theme_Keyword: USGS
Theme_Keyword: United States Geological Survey
Theme_Keyword: DLG's
Access_Constraints: NONE
Use_Constraints: NONE
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Geographic Data Library (FGDL)
Contact_Address:
Address_Type: mailing address
Address: 431 Architecture PO Box 115706
City: Gainesville
State_or_Province: Florida
Postal_Code: 32611-5706
Contact_Electronic_Mail_Address: Web site: <http://www.fgdl.org>
Contact_Electronic_Mail_Address: Technical Support: <http://www.fgdl.org/fgdlfeed.html>
Contact_Electronic_Mail_Address:
FGDL Frequently Asked Questions: <http://www.fgdl.org/fgdlfaq.html>
Contact_Electronic_Mail_Address: FGDL Mailing Lists: <http://www.fgdl.org/fgdl-l.html>
Contact_Electronic_Mail_Address: For FGDL Software: <http://www.fgdl.org/software.html>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Relied on the integrity of the attribute information within the original data layer.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Explanation:
Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modelling purposes. Please be sure you are using the best available data.

1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries.

1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger.

Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: <http://geoplan.ufl.edu/education.html>. These data are based on interpretation of available information and should not be construed as legally binding.

Logical_Consistency_Report:
Relied on the integrity of the attribute information within the original data layer.
Completeness_Report:
Relied on the integrity of the attribute information within the original data layer.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: United States Geological Survey (USGS)
Publication_Date: ongoing
Title: USGS 1:24,000 HYDROGRAPHY - LINES
Source_Scale_Denominator: 1:24,000
Type_of_Source_Media: MAP
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: ongoing
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: USGS
Source_Contribution: Spatial and Attribute Information
Process_Step:
Process_Description:
The data was downloaded by the GeoPlan Center from the USGS. The files were orginally in DLG format. The source projection was UTM (zone 16 and 17) units -meters datum - Nad27 and spheroid - Clarke 1866.

This data set comes from the USGS revised DLG ftp site. There are two hydrography datasets: HY24P and HY24L. Hy24P has polygon features and HY24L has line features.

The DLG's were converted to coverage format, processed, then converted to shapefile. The following items were removed from the attribute table: Major1, Minor1, Major2, Minor2, Major3, Minor3, Major4, Minor4, Major5, Minor5, Phot_rev, Surf_ft, Surf_m, Below_m, Angle, Riv_mile, Position, Coinc_ft, Desc2, Desc3, Desc4, Desc5. These items were removed for ease of querying the database since most records contained no values for these items. The items Desc1, Desc2, Desc3, Desc4, and Desc5 are verbal descriptions which correspond to the Major/Minor code pairs. GeoPlan added the 'DESCRIPT' item based on DESC1-DESC5 to represent the value that was most descriptive.

Process_Step:
Process_Description:
GeoPlan, during the QA/QC process included the following aspects:

1.)Converted from dlg to coverage

2.)Separated utm zone 16 from utm zone 17

3.)Mapjoined 16's and 17's with net option

4.)Used aml to joinitem pcode values to .pat and acode to .aat

5.)Added major and minor codes up to five in order to ensure proper mapjoin

6.)Build with poly option

7.)Set tolerances with settol then increased fuzzy to 2

8.)Dropfeatures poly for coverage

9.)Dissolve to get rid of extraneous boundary lines

10.)Run aml that adds descriptions and other fields based on major/minor pairs

11.)Alter fields to make sure that they are not over 10 characters

12.)Set Tolerances to FGDL Standards

13.)Set Precision to Double

14.)Upcased Fields that had lower case characters

15.)Added DESCRIPT item based on the major/minor pair that is most descriptive

16.) Removed all items except Desc1 and Descript

17.)Converted to shapefile


Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 1186691

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 24 0 0.000
Standard_Parallel: 31 30 0.000
Longitude_of_Central_Meridian: -84 0 0.000
Latitude_of_Projection_Origin: 24 0 0.000
False_Easting: 400000.00000
False_Northing: 0.00000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.002048
Ordinate_Resolution: 0.002048
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983_HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: hy24l01
Entity_Type_Definition: .DBF
Entity_Type_Definition_Source: FGDL
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition:
Data attribute inherent to the ESRI shapefile format, which defines the data as a point, polyline, or polygon.
Attribute_Definition_Source: FGDL
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: DESC1
Attribute_Definition: Description based on Major1/Minor1
Attribute:
Attribute_Label: DESCRIPT
Attribute_Definition: based on the major/minor pair that is most descriptive

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Florida Geographic Data Library (FGDL)
Contact_Address:
Address_Type: mailing address
Address: 431 Architecture PO Box 115706
City: Gainesville
State_or_Province: Florida
Postal_Code: 32611-5706
Country: United States
Contact_Electronic_Mail_Address: Web site: <http://www.fgdl.org>
Contact_Electronic_Mail_Address: Technical Support: <http://www.fgdl.org/fgdlfeed.html>
Contact_Electronic_Mail_Address:
FGDL Frequently Asked Questions: <http://www.fgdl.org/fgdlfaq.html>
Contact_Electronic_Mail_Address: FGDL Mailing Lists: <http://www.fgdl.org/fgdl-l.html>
Contact_Electronic_Mail_Address: For FGDL Software: <http://www.fgdl.org/software.html>
Resource_Description: Downloadable Data or CD ROM.
Distribution_Liability:
THE FGDL DATA AS PROVIDED BY CONTRIBUTING ORGANIZATIONS AND ANY PROGRAMMING SOFTWARE CREATED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER (COLLECTIVELY THE 'MATERIALS') ARE COPYRIGHTED BY THE UNIVERSITY OF FLORIDA GEOPLAN CENTER FOR THE FGDL CONTRIBUTING AGENCIES AND ORGANIZATIONS (THE 'DATA PROVIDERS'). DO NOT REPRODUCE, REDISTRIBUTE OR RESELL THE MATERIALS, OR PROVIDE THE MATERIALS FOR FREE TO CUSTOMERS OR CLIENTS, OR PLACE THE MATERIALS FOR DOWNLOAD ON A WEBSITE. ADDITIONALLY, WHEN USING FGDL DATA OR SOFTWARE IN PROJECTS, MAPS, ETC.; YOU AGREE TO ACKNOWLEDGE THE FGDL AS A DATA SOURCE. THE MATERIALS ARE PROVIDED AS IS.THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE QUALITY OR SUITABILITY OF THE MATERIALS, EITHER EXPRESSLY OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.THE UNIVERSITY OF FLORIDA GEOPLAN CENTER MAKES NO WARRANTIES, GUARANTIES OR REPRESENTATIONS AS TO THE TRUTH, ACCURACY OR COMPLETENESS OF THE DATA PROVIDED BY THE FGDL CONTRIBUTING ORGANIZATIONS. THE UNIVERSITY OF FLORIDA GEOPLAN CENTER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED AS A RESULT OF USING, MODIFYING, CONTRIBUTING OR DISTRIBUTING THE MATERIALS.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 564.220

Metadata_Reference_Information:
Metadata_Date: 20030205
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: United States Geological Survey (USGS)
Contact_Address:
Address_Type: mailing address
Address: USGS Mapping Applications Center
Address: National Cartographic Info Center
Address: 507 National Center
City: Reston
State_or_Province: VA
Postal_Code: 22092
Contact_Voice_Telephone: (703) 8606045
Contact_Facsimile_Telephone: (703) 6484165
Contact_Electronic_Mail_Address: MACWEBMASTER@USGS.GOV
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.7.3 on Wed Feb 05 14:58:23 2003