ARC/INFO polygon coverage representing the area of flooding streams in the
Upper Mississippi/Missouri River Basin.
Citation_Information:
Originator: Scientific Assessment and Strategy Team (SAST)
Publication_Date: 19950501
Title: FLOOD_AREA 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
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.
This data set was compiled to depict the boundary of the area of flooding
streams within the Upper Mississippi River Basin from mid_June through
early August 1993. Flooding was severe in the Mississippi River Basin
following a wet-weather pattern that persisted over the area for about
6 months before the flood.
Purpose:
The objectives in SAST 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.
Supplemental_Information:
In ARC/INFO the Copy command was used to off-load individual coverages
together with their associated INFO files.
ARC is the main program environment in ARC/INFO. It contains commands
which start each of the other subsystems and also has extensive
capabilities.
INFO is a complete relational database manager for the tabular data
associated with geographic features in map coverages. It provides
facilities for data definition of new data files, use of existing data
files, data entry and update, and sort and query.
ARC/INFO keeps track of and updates map feature attribute tables which are
stored as INFO files. It maintains the relationships between each map
feature and a corresponding tabular record.
ARCPLOT is the interactive cartographic and mapping subsystem of ARC/INFO.
Spatial_Domain:
Bounding_Coordinates: Geographic coordinates (latitude/longitude)
in decimal degrees.
West_Bounding_Coordinate: 47.5239 -101.1086
East_Bounding_Coordinate: 37.2866 -86.8894
South_Bounding_Coordinate: 37.2866 -101.1086
North_Bounding_Coordinate: 47.5239 -86.8894
Keywords:
Theme:
Theme_Keyword_Thesaurus: None.
Theme_Keyword: streams
Theme_Keyword: floodplain
Theme_Keyword: Polygon
Theme_Keyword: Coverage
Theme_Keyword: ARC/INFO
Theme_Keyword: Topology
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Mississippi River
Place_Keyword: Missouri River
Place_Keyword: Upper Mississippi/Missouri river basin
Access_Constraints: None
Use_Constraints:
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 Strategy Team (SAST) database.
During ARC/INFO coverage 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.
Attribute_Accuracy:
Attribute_Accuracy_Report:
No independent evaluation of the attribute or positional accuracy of the
source data was undertaken.
Attribute_Accuracy_Explanation:
The accuracy of most attributes has not been explicitly tested against
independent sources.
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. Polygon and chain-node
topology
Completeness_Report:
Data completeness reflects the content of the source graphic. Features
may have been eliminated or generalized on the source graphic, due
to scale and legibility constraints.
Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal accuracy of this coverage is expressed as an estimated
root mean square error (RMSE).
Horizontal_Positional_Accuracy_Value:
A RMSE of 0.002 digitizer inches was entered from digitizing.
Horizontal_Positional_Accuracy_Explanation: As reported
Lineage:
Source_Information:
Data retrieved by USGS/NMD/Reston from a USGS circular and converted to
an ARC/INFO coverage.
Source_Citation:
U.S. Geological Survey circular 1120-A, Flood Discharges in the Upper
Mississippi River Basin, 1993.
Type_of_Source_Media: booklet
Source_Scale_Denominator: 1:28,000,000
Originator: U.S. Geological Survey
Process_Step:
Process_Description:
Figure 1 in the USGS circular 1120-A was used to digitized the area
of flooding streams in the Upper Mississippi River Basin.
Geographic reference points were used to transform the polygon to the
Albers projection. The PROJECT command in ARC created a coordinate
definition file (PRJ) to convert the coverage into Albers projection.
The ARC command BUILD was used to recreate coverage topology.
BUILD creates or updates a feature attribute table for a line
coverage. It defines polygon and arc-node topology
when the POLY option is used.
Process_Date:
In 1994 the ARC/INFO coverage was imported into the SAST data base.
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
The Upper Mississippi/Missouri river basin represented by ARC/INFO coverage,
FLOOD_AREA, the boundary of flooding streams on the Mississippi River.
Indirect_Spatial_Reference:
Digital line data represented in ARC/INFO that depict the bounding area of
the floodwaters, attributes or codes for naming, and pointers for referencing.
Direct_Spatial_Reference_Method:
Point and Vector
Point/Vector_Object_Information:
Number of Points: 0
Number of lines: 6
Number of line segments: 896
Number of Polygons: 2
Point_Object_Information:
Number of control points: 6
SDTS_Terms_Description:
An area is a generic term for bounded, continuous, two-dimensional object
that may or may not include its boundary.
The attributes (or items) in the ARC/INFO feature attribute tables contain
information that may be important to scientists or biologists such as the
AREA or PERIMETER.
Detailed_Description:
Entity_Type: ARC/INFO polygon coverage
Entity_Type_Label: FLOOD_AREA.PAT
Entity_Type_Definition: polygon attribute table
Entity_Type_Definition_Source: ARC/INFO-generated and user defined
attributes and items.
DATAFILE NAME: FLOOD_AREA.PAT
4 ITEMS: STARTING IN POSITION 1
COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME
1 AREA 8 18 F 5
9 PERIMETER 8 18 F 5
17 FLOOD_AREA# 4 5 B -
21 FLOOD_AREA-ID 4 5 B -
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of polygon in square coverage units
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Positive real numbers
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of polygon in coverage units
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Positive real numbers
Attribute_Label: FLOOD_AREA#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: FLOOD_AREA-ID
Attribute_Definition: User-assigned feature number
Attribute_Definition_Source: User-defined
Attribute_Domain_Values: Integer
Overview_Description:
Entity_and_Attribute_Overview:
A coverage is stored as a set of files in ARC/INFO where each file
contains information about a particular feature class. In order for a
coverage's features to be stored, referenced, and managed as a set, a
coverage's files are organized in a directory. The coverage name is the
directory name. The set of files that are stored for a coverage vary
depending on the set of features present in the coverage.
In INFO, the specification of the format for each record in the data file
is referred to as the Items Definition. Items are defined by their name,
the data type, the number of characters used to store values, a display
width, and (for decimal numbers) the number of decimals to display.
A coverage contains both the locational data and thematic attributes
associated with map features. In a coverage, map features are stored as
lines (arcs). Lines represent linear features like miscellaneous
transportation. Lines have length but no area (polygon) and are defined
as a string of x,y coordinate pairs with beginning and ending points.
These attributes are stored in Feature Attribute Tables. Each feature
class in a coverage has its own table: line attributes are stored in Arc
Attribute Tables (AATs). Polygons in Polygon Attribute Tables (PATs).
ARC/INFO-"generated attributes" are automatically created and are
different for each coverage. The feature attribute table contain
information about and values for a particular record. An INFO table
specifies the format for each record in the data file and is referred
to as the Items Definition. Items are defined by their name, the data
type, the number of characters used to store values, a display width,
and (for decimal numbers) the number of decimals to display.
Entity_and_Attribute_Detail_Citation:
USGS/NMD/Reston
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 coverage of flooding streams in the Mississippi River
Basin.
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: Polygon coverage data set or layer
Format_Information_Content: area of flooding streams
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: Polygon coverage data set or layer
Format_Information_Content: area of flooding streams
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: Area coverage data set or layer
Format_Information_Content: area of flooding streams
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: 9-track tape
Recording_Capacity:
Recording_Density: 1600
Recording_Density: 6250
Recording_Density_Units: characters per inch
Recording_Format:
ASCII; available unlabeled or with ANSI-standard labels.
Digital_Transfer_Option:
Offline_Option:
Offline_Media: 3480 cartridge tape
Recording_Capacity:
Recording_Density: 1600
Recording_Density: 6250
Recording_Density_Units: characters per inch
Recording_Format:
ASCII; available unlabeled or with ANSI-standard labels.
Digital_Transfer_Option:
Offline_Option:
Offline_Media: 8mm cartridge tape
Recording_Capacity:
Recording_Density: 1600
Recording_Density: 6250
Recording_Density_Units: characters per inch
Recording_Format:
ASCII; available unlabeled or with ANSI-standard labels.
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:
8-mm cartridge = $70
3480 cartridge = $70
9-track tapes = $70
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: 19950622
Metadata_Contact_Information:
Metadata_Contact_Person: Sharon M. Ivens
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 6035
Contact_Facsimile_Telephone: 605 594 6589
Contact_Internet_Address: ivens@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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