ARC/INFO coverage of polygons representing the land cover on the Missouri
River from 1879 surveys.
Citation_Information:
Originator: Scientific Assessment and Strategy Team (SAST)
Publication_Date: 19950501
Title: MO1879 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.
This ARC/INFO coverage shows land cover/land use along the Missouri
River. The land cover/land use spatial data features are taken from
1879 surveys done by the Missouri River Commission (MRC).
Purpose:
This coverage was created to analyze the changes in the lower Missouri
River channel surface geometry between 1879 and 1986.
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: 38.9802 -90.1420
East_Bounding_Coordinate: 38.0134 -87.8277
South_Bounding_Coordinate: 38.0134 -90.1420
North_Bounding_Coordinate: 38.9802 -87.1420
Keywords:
Theme:
Theme_Keyword_Thesaurus: None.
Theme_Keyword: land use
Theme_Keyword: land cover
Theme_Keyword: Polygon
Theme_Keyword: Coverage
Theme_Keyword: ARC/INFO
Theme_Keyword: Topology
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Missouri River
Place_Keyword: Upper Mississippi/Missouri river basin
Access_Constraints: None
Use_Constraints:
There were some problems interpreting various patterns used to delineate
the different landcover types. It was difficult to differentiate between
willows and bushes. And there was very sparse representation of
evergreens. The borders between classes were not always delineated,
therefore, they were interpreted by the operator. The cultivated areas
were not consistently symbolized, so the areas with significant county
roads were tagged as being cultivated. Areas of relief, such as bluffs,
were difficult to interpret. The outer polygon was arbitrarily created
to close off the coverage and was tagged as grass. When using the
landcover classes one should keep in mind this map set was hand drafted by
at least five different people over a period of several years. However,
the river channel (open water) and islands (sand bars) seemed to be the
most consistent throughout the map set.
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 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 survey maps. Features
may have been eliminated or generalized on the source graphic, due to scale
and legibility constraints.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal positional accuracy is based upon the placement of the data
from Missouri River Commission Survey maps onto the Digital Line Graphs
(1:100,000-scale). The ARC Tolerance command is used to set and
examine the tolerances associated with the DLG data set. Positional
accuracy between the DLG data set and ARC data file is indicated as 1.0
inch verified. Features were digitized by visual interpretation from the
operator.
Lineage:
Source_Information:
Data derived from land cover surveys taken in 1879.
Source_Citation:
Missouri River Commission Survey Maps, Missouri River Commission,
1879.
Type_of_Source_Media: map
Source_Scale_Denominator: 1:63,360
Originator: Missouri River Commission
Source_Information:
DLG 1:100,000(hydrology, roads, railways, and river mileage).Used
for background.
Source_Citation:
DLG Data Users Guide 2
Source_Scale_Denominator: 100,000
Type_of_Source_Media:
DLG-digital files(CD-ROM)
Originator:
U.S. Geological Survey
Process_Step:
Process_Description:
The digitizing for this ARC coverage was done at EROS Data Center.
The land cover features were extracted from the survey maps by on-screen
digitizing. Using background covers of the DLG 1:100,000 hydrology,
roads, and railways, spatial placement of the polygons was determined.
The following ARC procedure was used to create the coverage:
Arcedit: create cov
Register and digitize map - (captured existing graticule)
Arc: clean cov covtag .001 .001 poly
Arc: createlabels covtag
Arc: additem covtag.pat covtag.pat code 5 5 c
Arc: additem covtag.pat covtag.pat symbol 3 3 i
Arc: build covtag
Arcedit: edit covtag
Arcedit: ef label
Arcedit: sel all
Arcedit: calc symbol = 3
Tag landcover
Label and edit sliver polygons
Arcedit: save covtag
Arc: build covtag
Arc: create covtag_tic covtag
Arc: INFO
Enter command: SEL COVTAG_TIC.TIC
Enter command: LIST
Enter command: UPDATE PROMPT
Update tics with latitude and longitude
Arc: project cover covtag_tic covalb geo2alb.prj
Arc: transform covtag covalb
Arc: dropitem covalb.pat covalb.pat symbol
Arc: build covalb
Arcedit: edgematch
Edgematch all map sheets
Arc: mapjoin covindex poly
Arc: dissolve covindex covindex2 code poly
Arc: clean covindex2 covindex2a 1 1 poly
Arc: labelerrors covindex2a
Clean up any labelerrors
Arc: build covindex2a
Arc: copy covindex2a mol897
Arc: export cover mo1897 mo1897.e00
The ARC commands BUILD and CLEAN were 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. 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.
(i.e., creates a .PAT).
Process_Date:
In 1994 the data was converted to an ARC/INFO coverage from the survey
maps.
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 of the land cover on Missouri River from 1879 surveys.
Indirect_Spatial_Reference:
Digital line data represented in ARC/INFO that depict the land use and
land cover data and attributes or codes as naming and pointers for
referencing.
Direct_Spatial_Reference_Method:
Point and Vector
Point/Vector_Object_Information:
Number of Points: 4826
Number of lines: 9890
Number of line segments: 204632
Number of Polygons: 4827
Point_Object_Information:
Number of control points: 28
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
different types of values; specifically, measurements, codes, flags, and names.
Detailed_Description:
Entity_Type: ARC/INFO polygon coverage
Entity_Type_Label: MO1879.PAT
Entity_Type_Definition: polygon attribute table
Entity_Type_Definition_Source: ARC/INFO-generated and user defined
attributes and items.
DATAFILE NAME: MO1879.PAT
5 ITEMS: STARTING IN POSITION 1
COL ITEM NAME WDTH OPUT TYP N.DEC ALTERNATE NAME
1 AREA 4 12 F 3
5 PERIMETER 4 12 F 3
9 MO1879# 4 5 B -
13 MO1879-ID 4 5 B -
17 CODE 5 5 C -
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: MO1879#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: MO1879-ID
Attribute_Definition: User-assigned feature number
Attribute_Definition_Source: User-defined
Attribute _Domain_Values: Integer
Attribute_Label: CODE
Attribute_Definition: descriptor of the land cover/land use
Attribute_Definition_Source: U.S. Army COE and NBS
Attribute_Domain_Values: 2-letter descriptor
Codeset_Domain:
Codeset_Name: Code attributes
Codeset_Source: U.S. Corps of Engineers
CODE INTERPRETATION
OR Orchard
FD Forest (deciduous)
FE Forest (evergreen)
BU Bushes
WI Willows
CU Cultivated
SB Sandbar
GR Grass
MA Marsh
BL Bluffs
OW Open Water
UR Urban
UN Unknown
Attribute_Value_Accuracy_Information:
Unverified in conversion process
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).
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:
The Scientific Assessment Strategy Team (SAST), U.S. Geological
Survey, EROS Data Center, Sioux Falls, SD. Land Use Land Cover
documentation for the Missouri River.
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 Land Use coverage on the Missouri River.
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: Land cover on the Missouri River
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: Land cover on the Missouri River
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: Land cover on the Missouri River
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: 19950526
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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