ARC/INFO coverage of the lines representing the Upper Mississippi/Missouri
River Basin 1:2,000,000-scale Railroads
Citation_Information:
Originator: Scientific Assessment and Strategy Team (SAST)
Publication_Date: 19950501
Title: RR2M ARC/INFO COVERAGE
Geospatial_Data_Presentation_Form: map
Online_Linkage: http://edcwww.cr.usgs.gov/sast-home.html
Description:
The SAST ARC/INFO database is a comprehensive vector basemap of the Upper
Mississippi/Missouri River Basin and contains attribute data suitable for
performing a wide range of analyses and for generating thematic maps for
counties and states throughout the flood area.
Abstract:
On January 10, 1994, the Scientific Assessment and Strategy Team (SAST)
joined in the effort to provide scientific advice and assistance to
officials responsible for making decisions with respect to the flood
recovery in the Upper Mississippi River Basin.
The Sast acquired from the Environmental Systems Research Institute (ESRI)
the ArcUSA 1:2,000,000-scale database via the medium Compact Disc-Read
Only Memory (CD-ROM). The ArcUSA database contains the USGS 1:2,000,000
Railroads layer in both Albers Conic Equal Area projection and in
geographic coordinates, outlines of the topographic maps quadrangle name,
USGS map reference code, map coverage by state for each quadrangle, and
the publication date.
Purpose:
The ArcUSA database provided the SAST with data formatted in the
Geographic Information System (GIS) ARC/INFO data model. The objectives
were to develop a database of readily available data to support map
production, scientific analysis, and decision making; to produce maps
showing base information and vulnerability to flooding; and to prepare
reports documenting the products of SAST and the methodology and
analysis used to produce them, and identifying the ongoing monitoring,
research, modeling, data management and distribution requirements needed
to support integrated river basin management.
Spatial_Domain:
Bounding_Coordinates: Geographic coordinates (latitude/longitude) in
decimal degrees.
West_Bounding_Coordinate: 36.0 -111.0
East_Bounding_Coordinate: 36.5 -86.5
South_Bounding_Coordinate: 48.5 -84.0
North_Bounding_Coordinate: 49.5 -114.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: None.
Theme_Keyword: digital line graph
Theme_Keyword: DLG
Theme_Keyword: railroads
Theme_Keyword: Coverage
Theme_Keyword: ARC/INFO
Theme_Keyword: Fuzzy Tolerance
Theme_Keyword: Arc
Theme_Keyword: attribute
Theme_Keyword: ARCPLOT
Theme_Keyword: INFO
Theme_Keyword: Topology
Theme_Keyword: cartographic
Theme_Keyword: FIPS
Theme_Keyword: ArcUSA
Theme_Keyword: scale 1:2,000,000
Place:
Place_Keyword_Thesaurus:
U.S. Department of Commerce, 1987, Codes for the identification of
the States, the District of Columbia and the outlying areas of The
United States, and associated areas (Federal Information Processing
Standard 5-2):Washington ,D. C., National Institute of Standards and
Technology.
Place_Keyword: US
Place_Keyword: Upper Mississippi/Missouri River Basin
Access_Constraints: None
Use_Constraints: None
Acknowledgement of the U.S. Geological Survey and the Scientific
Assessment and Strategy Team would be appreciated in products derived
from these data.
Contact_Information:
Point_of_Contact: Jacqueline Klaver
Contact_Position: Senior Scientist
Contact_Address:
Address_Type:
Address: SAST
U.S. Geological Survey
EROS Data Center
City: Sioux Falls
State: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605 594 6961
Contact_Facsimile_Telephone: 605 594 6589
Contact_Electronic_Mail: jklaver@edcserver1.cr.usgs.gov
Hours_of_Service: 0730-1615
Data_Set_Credit:
Scientific Assessment and Strategy Team
U.S. Geological Survey
Native_Data_Set_Environment:
UNIX ARC/INFO
Cross_Reference:
Upper Mississippi/Missouri River Basin ARC/INFO coverages in the Scientific
Assessment and Stategy Team (SAST) database.
During ArcUSA development several modifications were made to the source data in
order to generate a database with a common scale, uniform level of resolution,
consistent coding scheme, and comparable (standardized) measurement data.
The SAST Upper Mississippi/Missouri River Basin database has not deviated from
ArcUSA database.
Attribute_Accuracy:
No independent evaluation of the attribute or positional accuracy of the
source data was undertaken. However, a series of coverage-based (global)
diagnostic tests were run on each ArcUSA coverage to ensure data quality and
integrity.
Attribute_Accuracy_Report:
ArcUSA visual tests involved the review of check plots. The check plots
were matched against the source map book for the 1:2,000,000 Digital
Line Graph (DLG) data to verify the validity of particular codes.
Attribute_Accuracy_Value:
The accuracy of most attributes has not been explicitly tested against
independent sources. However, all the data derived from the ArcUSA
database have been reviewed for anomalous visual patterns both on line
and in hard copy.
Attribute_Accuracy_Explanation:
Code attributes were reviewed by checking for invalid codes in the
database using the ARC/INFO CODEFIND command. Invalid code combinations
were checked using the ARC/INFO CONSIST command (codes were deemed
invalid if they were undefined in the ArcUSA data dictionary.
CODEFIND identifies coding errors for item values in an INFO data
file.
CONSIST identifies illogical code combinations for multiple items
in an INFO data file. Item values are compared against a
series of user-specified conditions to identify illogical
code combinations.
Logical_Consistency_Report:
All data were found to be topologically correct. No duplicate features are
present. All polygons are closed, and all lines intersect where intended.
No undershoots or overshoots are present.
The tests of logical consistency were performed by the ARC commands:
BUILD creates or updates a feature attribute table for a
coverage. It defines polygon and arc-node topology
when the POLY option is used. Point features and their
attributes are created with the POINT option.
CLEAN generates a coverage with correct polygon or arc-node
topology. It edits and corrects geometric coordinate
errors, assembles arcs into polygons, and creates
feature attribute information for each polygon or arc
(i.e., creates a PAT or AAT).
Completeness_Report:
Data completeness reflects the content of the source Digital Line Graph and
ArcUSA 1:2M coverages. Features may have been generalized or eliminated on
the source graphic, due to scale and legibility constraints. The ArcUSA
data closely reviewed to ensure completeness of state and county
boundaries. The river, road, and railroad layers completeness is less well
defined, since cartographic data is checked against the USGS 100k DLG line
data visually.
Positional_Accuracy:
The positional accuracy of the SAST Arc/INFO database is consistent with the
ArcUSA database. The original DLG data met the criteria for inclusion in
the National Digital Cartographic Database.
Horizontal_Positional_Accuracy_Report:
The accuracy of the database components that originated in the USGS DLGs
can be inferred to have the cumulative effects of data processing
performed by the Environmental Systems Research Institute (ESRI).
Horizontal_Positional_Accuracy_Value:
The conservative estimate on the accuracy of the ArcUSA 1:2,000,000-scale
data derived from the 1:2,000,000-scale data is 1722 meters.
Horizontal_Positional_Accuracy_Explanation:
A root-sum-square calculation indicates that the expected positional
error of the DLGs is 0.034 in (0.86mm), or a ground distance of 1720m.
Additional ESRI processes that could introduce error include the
application of "fuzzy" tolerances of 50.8m.
Lineage:
Data derived primarily from the 1:2,000,000-scale ArcUSA database.
Source_Information:
The ArcUSA data was derived primarily from 1:2,000,000-scale USGS DLG and
converted into single-precision ARC/INFO coverages, using the DLGARC
command in ARC/INFO Rev.5.0.1.
Source_Citation:
Digital Line Graphs from 1:2,000,000-Scale Maps: Data Users Guide 3.
ArcUSA 1:2M a comprehensive GIS database for use with ARC/INFO and
ArcView.
SAST Upper Mississippi/Missouri River Basin database ARC/INFO coverages.
Source_Scale_Denominator: 2,000,000
Type_of_Source_Media: CD-ROM
Process_Step:
The SAST provided the necessary data to the Environmental Systems Research
Institute (ESRI) and received the ArcUSA database CD-ROM for processing
into the ARC/INFO interchange file RR2M.e00.
Process_Description:
The ArcUSA RR2M interchange file was downloaded to a UNIX system. The
ARC command IMPORT created coverage along with the INFO data file. The
PROJECT command in ARC created a coordinate definition file (PRJ) to
covert the coverage into Albers projection and the ARC command PRECISION
was used with the option DOUBLE.
Source_Used_Citation_Abbreviation:
ArcUSA 1:2,000,000 Railroads
Process_Date:
In 1994 the ArcUSA 1:2,000,000 Railroads layer was imported
into an ARC/INFO coverage.
Process_Contact:
Contact_Information:
Point_of_Contact: Jacqueline Klaver
Contact_Position: Senior Scientist
Contact_Address:
Address_Type:
Address: SAST
U.S. Geological Survey
EROS Data Center
City: Sioux Falls
State: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605 594 6961
Contact_Facsimile_Telephone: 605 594 6589
Contact_Electronic_Mail: jklaver@edcserver1.cr.usgs.gov
Hours_of_Service: 0730-1615
The Upper Mississippi/Missouri river basin represented in the ARC/INFO coverage
1:2,000,000 Railroads.
Indirect_Spatial_Reference:
Digital line data represented by arcs in ARC/INFO that depict the railroads
of 1:2,000,000 topographic data and attributes or codes as naming and
pointers for referencing.
Direct_Spatial_Reference_Method:
Point and Vector
Point_and_Vector_Object_Information:
Number of Points: 0
Number of lines: 3212
Number of line segments: 52915
Number of Polygons: 0
Number of control points: 23
SDTS_Terms_Description:
A line is a generic term for a one-dimensional object.
The attributes (or items) in the ARC/INFO feature attribute tables contain
different types of values; specifically, measurements, codes, flags, and names.
Detailed_Description:
Entity_Type: An ARC/INFO line coverage
Entity_Type_Label: RR2M.AAT
Entity_Type_Definition: Arc attribute table
Entity_Type_Definition_Source: ARC/INFO-generated attributes and items
COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 8 18 F 5
25 RR2M# 4 5 B -
29 RR2M-ID 4 5 B -
33 TYPE 4 4 I -
37 RAIL_TYPE 72 72 C -
75 STATE_FIPS 3 3 I -
78 STATE_NAME 20 20 C -
98 SUB_REGION 7 7 C -
Attribute:
Attribute_Label: FNODE#
Attribute_Definition: the internal number of the from node (beginning
point of the arc)
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: TNODE#
Attribute_Definition: the internal number of the to-node (ending point
of the arc)
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: LPOLY#
Attribute_Definition: the internal number of the polygon (if any)
on the arc's left side
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: RPOLY#
Attribute_Definition: the internal number of the polygon (if any)
on the arc's right side
Attribute_Definition_Source: Computed
Attribute_Label: LENGTH
Attribute_Definition: length of arc in coverage
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Positive real numbers
Attribute_Label: RR2M#
Attribute_Definition: each features unique identifier
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: RR2M-ID
Attribute_Definition: user-assigned feature number
Attribute_Definition_Source: user-defined
Attribute_Domain_Values: integer
Attribute_Label: TYPE
Attribute_Definition: classification according to volume of traffic
measured in tons
Attribute_Definition_Source: ArcUSA database
Attribute_Domain_Values: positive integer
Attribute_Label: RAIL_TYPE
Attribute_Definition: English equivalent to class number
Attribute_Definition_Source: ArcUSA database
Attribute_Domain_Values: character
Attribute_Label: STATE_FIPS
Attribute_Definition: state FIPS code
Attribute_Definition_Source: ArcUSA database
Attribute_Domain_Values: positive integer
Attribute_Label: STATE_NAME
Attribute_Definition: state name
Attribute_Definition_Source: ArcUSA database
Attribute_Domain_Values: character
Attribute_Label: SUB_REGIONS
Attribute_Definition: U.S. subregion in which part of railroad locator
Attribute_Definition_Source: ArcUSA database
Attribute_Domain_Values: character
Codeset_Domain:
Codeset_Name: Code attributes
Codeset_Source: ArcUSA database
Code Definition
1 Main line bearing more than 20 tons annually
2 Main line bearing less than 20 tons annually
3 Branch line bearing more than 1 but less than
5 tons annually
4 Branch line bearing less than 1 ton annually
5 Other railroad
6 Railroad ferry
Attribute_Value_Accuracy_Information:
The accuracy of most attributes in the ARC/INFO 1:2,000,000-scale
database are as accurate as the ArcUSA database.
Overview_Description:
Entity_and_Attribute_Detail_Citation:
The Scientific Assessment Strategy Team (SAST), U.S. Geological Survey,
EROS Data Center, Sioux Falls, SD. Railroads 1:2,000,000-scale
Documentation
U.S.Department of the Interior, U.S. Geological Survey, 1973 Digital Line
Graphs from 1:2,000,000-Scale Maps--Data Users Guide 3; Reston, Virginia.
Environmental Systems Research Institute, Inc., 1992 ArcUSA 1:2M User's
Guide & Data Reference, edition 1; Redlands, California.
U.S.Department of the Interior, U.S.Geological Survey, 1990, Standards
for Digital Line Graphs, Part 3: Attribute Codes: Reston, VA.
Distributor: SAST
Contact_Information:
Contact_Person: Jacqueline Klaver
Contact_Position: Senior Scientist
Contact_Address:
Address_Type:
Address: SAST
U.S. Geological Survey
EROS Data Center
City: Sioux Falls
State: SD
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 605 594 6961
Contact_Facsimile_Telephone: 605 594 6589
Contact_Electronic_Mail: jklaver@edcserver1.cr.usgs.gov
Hours_of_Service: 0730-1615
Resource_Description:
Scientific Assessment and Strategy Team (SAST) Upper Mississippi River
Basin ARC/INFO USGS 1:2,000,000-scale Railroads.
Distribution_Liability:
Although these data have been processed successfully on a computer
system at the EROS Data Center, no warranty expressed or implied is made
by the SAST or USGS regarding the utility of the data on any other
system, nor shall the act of distribution constitute any such warranty.
The Geological Survey will warrant the delivery of this product in
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_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE (ARC Export)
Format_Version_Number: ARC6.1
Format_Version_Date:
Format_Specification: Arc coverage data set or layer
Format_Information_Content: 1:2,000,000-scale Railroads
File_Decompression_Technique: ARC6.1 import (compressed)
Transfer_Size:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
ftp edcftp.cr.usgs.gov
Enter "anonymous" at name prompt
Enter complete e-mail address at the Password prompt
cd (change) pub/data/sast (subdirectory)
Type: binary (set the file transfer mode to binary)
Type: get (to download one file) or
Type: mget (to download more than one file)
Digital_Transfer_Information:
Format_Name: PC ARC (Export)
Format_Version_Number: ARC6.1
Format_Version_Date:
Format_Specification: Arc coverage data set or layer
Format_Information_Content: 1:2,000,000-scale Railroads
File_Decompression_Technique: ARC6.1 import (uncompressed)
Transfer_Size:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
ftp edcftp.cr.usgs.gov
Enter "anonymous" at name prompt
Enter complete e-mail address at the Password prompt
cd (change) pub/data/sast (subdirectory)
Type: binary (set the file transfer mode to binary)
Type: get (to download one file) or
Type: mget (to download more than one file)
Digital_Transfer_Information:
Format_Name: SDTS
Format_Version_Number:
Format_Version_Date:
Format_Specification: Line coverage data set or layer
Format_Information_Content: 1:2,000,000-scale Railroads
File_Decompression_Technique:
Transfer_Size:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
ftp edcftp.cr.usgs.gov
Enter "anonymous" at name prompt
Enter complete e-mail address at the Password prompt
cd (change) pub/data/sast (subdirectory)
Type: binary (set the file transfer mode to binary)
Type: get (to download one file) or
Type: mget (to download more than one file)
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: ISO 9660
Compatibility_Information:
This CD-ROM can be used with all computer operating systems that
support CD-ROM as a logical storage device. All text files on
the disc are in ASCII format. Data files are in ASCII or binary
format.
Fees:
CD-ROM = $70
Ordering_Instructions:
Point_of Contact: Ron Risty
Contact_Position: Senior Information Scientist
Contact_Address:
Address_Type:
Address: U.S. Geological Survey
EROS Data Center
City: Sioux Falls
State: SD
Country: USA
Contact_Voice_Telephone: 605 594 6969
Contact_Facsimile_Telephone: 605 594 6589
Contact_Electronic_Mail: risty@edcserver1.cr.usgs.gov
Hours_of_ Service: 7:30am - 4:15pm
Turnaround:
One week maximum
Metadata_Date: 19961023
Metadata_Contact_Information:
Metadata_Contact_Person: Mary C. Weinheimer
Metadata_Contact_Position: Information Scientist
Contact_Address:
Address_Type: mailing address
Address: U. S. Geological Survey
EROS Data Center
City: Sioux Falls
State_or_Province: South Dakota
Postal_Code: 57198
Country: USA
Contact_Voice_Telephone: 1 605 594 6097
Contact_Facsimile_Telephone: 605 594 6589
Contact_Internet_Address: weinheim@edcserver1.cr.usgs.gov
Hours_of_Service: 0730-1615
Metadata_Standard_Name: Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 1.0
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