USGS
Water Resources NSDI Node

1:2,000,000-scale Digital Line Graph files of streams

Available as - [Outline] - [Parseable text] - [SGML]

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Lanfear, K.J.
Publication_Date: 1991
Title: 1:2,000,000-scale Digital Line Graph files of streams
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Online_Linkage: <http://water.usgs.gov/lookup/getspatial?stream>
Online_Linkage: <ftp://nsdi.usgs.gov/pub/dsdl/stream.sdts.tgz>
Description:
Abstract:
This is a 1:2,000,000 coverage of streams for the conterminous United States.

streams

Purpose:
This coverage was intended for use as a background display for the National Water Summary program.

Supplemental_Information:
Procedures_Used: The stream layer was extracted from the 1:2,000,000 Digital Line Graph files. Originally, each state was stored as a separate coverage. In this version, the individual state coverages all have been appended.

Revisions: Rev. 1.0 Original DLG conversion, state-by-state. Process_Date c1986 Rev. 2.0 Converted to the Data General workstation. All states joined into a single coverage. Process_Date 01/02/92 Reviews_Applied_to_Data: Rev. 1.0 has seen extensive use in a variety of studies.

Related_Spatial_and_Tabular_Data_Sets:

Other_References_Cited:

Notes:

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1991
Currentness_Reference:
(Here you put information defining how the time period of content information, on the DOC file, was determined)

Status:
Progress: Complete
Maintenance_and_Update_Frequency:
(Here you pick one of the following entries that describes how often changes or additions are made to the data set. Pick one, and delete the rest)

Continually Daily Weekly Monthly Annually Unknown As Needed Irregular None planned

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -127.76920546
East_Bounding_Coordinate: -65.71758253
North_Bounding_Coordinate: 48.14641998
South_Bounding_Coordinate: 23.25705469
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Streams from the National Atlas
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Conterminous United States
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: None
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: None
Access_Constraints:
(describe any restrictions or legal prerequisites for accessing the data set. Put "None" if there are no restrictions)

Use_Constraints:
The state coverages are merely appended. No adjustments were made to edge match or to form a continuous routing for streams.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ken Lanfear
Contact_Organization: U.S. Geological Survey, Water Resources Div. (WRD)
Contact_Position: Network Information Products Coordinator for WRD
Contact_Address:
Address_Type: mailing address
Address: 12201 Sunrise Valley Drive, MS-440
City: Reston
State_or_Province: VA
Postal_Code: 20191
Country: USA
Contact_Voice_Telephone: 703-648-6852
Contact_Facsimile_Telephone: 703-648-5295
Contact_Electronic_Mail_Address: lanfear@usgs.gov
Hours_of_Service: 7:30am-4:00pm EST
Contact_Instructions: Please contact thru email
Data_Set_Credit:
(Here you acknowledge the agencies and organizations that gave you money, resources, and encouragement to digitize the data and to enter all this wonderful metadata.)

Security_Information:
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: None
Native_Data_Set_Environment: dgux, 5.4R3.10, AViiON UNIX, ARC/INFO version 7.0.4

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: See 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: Chain-node topology present.
Completeness_Report:
(Information in wordy narrative form describing omissions, selection criteria, generalization, definitions used, and other rules applied to derive the data set)

Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
(An explanation of the accuracy of the horizontal coordinate measurements and a description of tests used, if any, to determine horizontal positional accuracy. This is different from horizontal resolution as reported in the DOC file. Positional accuracy defines how correctly the digital features match real-world features and woiuld be related to the concept of the National Map Accuracy Standard -- xx% of well-defined point features fall within xx units of their true position. The resolution is the smallest unit of measure the GIS can reliably manage without truncation or rounding.)

Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
(The same as above, but for vertical information that may be encoded with the 2-D features such as cell or contour estimates of a vertical dimension. A description of the contour interval of input data and its basis could be described here.)

Lineage:
Source_Information:
Source_Scale_Denominator: 2,000,000
Process_Step:
Process_Description: APPEND STREAMS LINE ALL
Source_Used_Citation_Abbreviation: None
Process_Date: 19920102
Process_Time: 1756
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: BUILD STREAMS LINE
Source_Used_Citation_Abbreviation: None
Process_Date: 19920102
Process_Time: 1757
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: DOCUMENT STREAMS CREATE LANFEAR
Source_Used_Citation_Abbreviation: None
Process_Date: 19920102
Process_Time: 1815
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: COPY /SRV1/GIS/LANFEAR/STREAMS/STREAMS
Source_Used_Citation_Abbreviation: None
Process_Date: 19920102
Process_Time: 1817
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: RENAME STREAMS STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19920102
Process_Time: 1818
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: DOCUMENT STREAM UPDATE LANFEAR
Source_Used_Citation_Abbreviation: None
Process_Date: 19920102
Process_Time: 1818
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: INDEX STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19920108
Process_Time: 1745
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: COPY /DSDL/NEWDLG/STREAM STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19920312
Process_Time: 1303
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: COPY /DSDL/INDEXES/STREAM /DSDL/DATALIB/CUSA/TILES/CUSA/STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19920312
Process_Time: 1304
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: IMPORT COVER STREAM.E00 STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19920930
Process_Time: 0306
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: COPY STREAM /DSDL1/CUSA/TILES/CUSA/STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19920930
Process_Time: 0556
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: FOOTPRINT STREAM BND STREAM.BND FOOTPRINT
Source_Used_Citation_Abbreviation: None
Process_Date: 19920930
Process_Time: 0931
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EXTERNALALL
Source_Used_Citation_Abbreviation: None
Process_Date: 19930106
Process_Time: 1112
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EXTERNALALL
Source_Used_Citation_Abbreviation: None
Process_Date: 19930106
Process_Time: 1115
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EXPORT COVER /DSDL1/CUSA/TILES/CUSA/STREAM STREAM.E00
Source_Used_Citation_Abbreviation: None
Process_Date: 19930113
Process_Time: 1104
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EC STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19930202
Process_Time: 0953
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: DELETE
Source_Used_Citation_Abbreviation: None
Process_Date: 19930202
Process_Time: 1009
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EXPORT COVER /DSDL1/CUSA/TILES/CUSA/STREAM STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19930719
Process_Time: 1304
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EXPORT COVER /DSDL1/CUSA/TILES/CUSA/STREAM STREAM.E00
Source_Used_Citation_Abbreviation: None
Process_Date: 19930720
Process_Time: 0813
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EXPORT COVER /DSDL1/CUSA/TILES/CUSA/STREAM STREAM.E00 NONE
Source_Used_Citation_Abbreviation: None
Process_Date: 19930817
Process_Time: 1122
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: EXPORT COVER /DSDL1/CUSA/TILES/CUSA/STREAM STREAM_C.E00
Source_Used_Citation_Abbreviation: None
Process_Date: 19930817
Process_Time: 1246
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: JPORTER DOCUMENT STREAM DELETE JPORTER
Source_Used_Citation_Abbreviation: None
Process_Date: 19950118
Process_Time: 0753
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description:
JPORTER DOCUMENT STREAM COPY /HOME/GIS/LANFEAR/NEWDOC/COVERS/STREAM JPORTER
Source_Used_Citation_Abbreviation: None
Process_Date: 19950118
Process_Time: 0754
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: JPORTER EXPORT COVER /DSDL1/CUSA/TILES/CUSA/STREAM STREAM
Source_Used_Citation_Abbreviation: None
Process_Date: 19950120
Process_Time: 1519
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description: JPORTER DOCUMENT STREAM DELETE JPORTER
Source_Used_Citation_Abbreviation: None
Process_Date: 19950223
Process_Time: 1420
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description:
JPORTER DOCUMENT STREAM COPY /HOME/GIS/LANFEAR/NEWDOC/COVERS/STREAM JPORTER
Source_Used_Citation_Abbreviation: None
Process_Date: 19950223
Process_Time: 1420
Source_Produced_Citation_Abbreviation: None
Process_Step:
Process_Description:
MNEGRI EXPORT COVER STREAM /SCRATCH_AREA1/MNEGRI/STREAM.E00 NONE
Source_Used_Citation_Abbreviation: None
Process_Date: 19950919
Process_Time: 2124
Source_Produced_Citation_Abbreviation: None

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: 0
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 35853
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 0

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 29.5
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -96
Latitude_of_Projection_Origin: 23
False_Easting: 0.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 1.0
Ordinate_Resolution: 1.0
Planar_Distance_Units: METERS
Geodetic_Model:
Horizontal_Datum_Name: Unknown
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: STREAM.AAT
Entity_Type_Definition: Arc attribute table
Attribute:
Attribute_Label: FNODE#
Attribute_Definition: Internal number of from-node
Attribute_Definition_Source: Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Attribute:
Attribute_Label: TNODE#
Attribute_Definition: Internal number of to-node
Attribute_Definition_Source: Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Attribute:
Attribute_Label: LPOLY#
Attribute_Definition: Internal number of polygon to left of arc
Attribute_Definition_Source: Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Attribute:
Attribute_Label: RPOLY#
Attribute_Definition: Internal number of polygon to right of arc
Attribute_Definition_Source: Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Attribute:
Attribute_Label: LENGTH
Attribute_Definition: Length of arc in coverage units
Attribute_Definition_Source: Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Positive real numbers
Attribute:
Attribute_Label: STREAM#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Computed
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Sequential unique positive integer
Attribute:
Attribute_Label: STREAM-ID
Attribute_Definition: User-assigned feature number
Attribute_Definition_Source: User-defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Integer
Overview_Description:
Entity_and_Attribute_Overview:
There are no attributes.

Entity_and_Attribute_Detail_Citation: Not Available

Metadata_Reference_Information:
Metadata_Date: 19950223
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ken Lanfear
Contact_Organization: U.S. Geological Survey, Water Resources Div. (WRD)
Contact_Position: Network Information Products Coordinator for WRD
Contact_Address:
Address_Type: mailing address
Address: 12201 Sunrise Valley Drive, MS-440
City: Reston
State_or_Province: VA
Postal_Code: 20191
Country: USA
Contact_Voice_Telephone: 703-648-6852
Contact_Facsimile_Telephone: 703-648-5295
Contact_Electronic_Mail_Address: lanfear@usgs.gov
Hours_of_Service: 7:30am-4:00pm EST
Contact_Instructions: Please contact thru email
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: Local Time
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: Unclassified
Metadata_Security_Handling_Description: None