ARC/INFO line and polygon coverage of annual precipitation within the
Upper Mississippi/Missouri River Basin.
Citation_Information:
Originator: Scientific Assessment and Strategy Team (SAST)
Publication_Date: 19950501
Title: PRECIP 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 this national map from Oregon State University. It is a
small scale regional map which depicts annual precipitation for 1961-1990.
This is a preliminary map which was initially developed for the U.S. Army
Corps of Engineers. The map was received by SAST in draft stage and used
to obtain an idea of precipitation distribution across the study area.
The scale is not verified, but at approximately 1:2,500,000. It is a map
designed to be used for regional assessments, displaying isohyets that
incorporate precipitation measurements and topography. State maps are
being developed with this same approach by the Oregon Climate Service
(OCS).
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.
Since this map is in draft format the usage by SAST was limited for its
suitability for accurate analysis. Also, the coverage was intended for
regional assessments, not local.
In the past few years the map has been substantially improved. Maps
are also being developed on a state by state basis with the
statistical-topographic method by the Oregon Climate Center.
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: 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: precipitation
Theme_Keyword: climate
Theme_Keyword: polygon
Theme_Keyword: line
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: Mississippi/Missouri River 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.
The map was initially created for the U.S. Army Corps of Engineers, to
be used in their drought atlas which is in draft stage. The Arc coverage is
at 5" intervals, which is acceptable for the West, but not for the East and
Midwest.
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. Attribute accuracy is described, where present,
with each attribute defined in the Entity and Attribute Section.
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.
Completeness_Report:
This data set includes coverage of the Mississippi/Missouri River Basin
area only. This region has been clipped from a national coverage.
Positional_Accuracy: unknown
Lineage:
Source_Information:
Precipitation map developed from precipitation measurements and
topography.
Source_Citation:
Annual Average Precipitation Map for the USA. Oregon State
University, George Taylor, 1994.
Daly C., Neilson, R.P., Phillips, D.L., 1994, A statistical
topographical model for mapping climatological precipitation
over mountainous terrain, J. of Applied Meteorology, v. 33 n. 2,
February 1994, pp. 140-158.
Source_Scale_Denominator: approx. 2,500,000
Type_of_Source_Media: digital file
Originator:
Oregon State University
Process_Step:
Process_Description:
The original data for this data set was developed at Oregon State
University. The map was made from a model that incorporates
precipitation measurements and topography. The precipitation values
(inches) were created using the PRISM model and a 5-minute latitude-
longitude DEM (Digital Elevation Model). PRISM is described in detail
in the Feb. 1994 Journal of Applied Meteorology (see Source_Information).
The SAST received the precipitation map as an export file from
USGS/WRD with caution for its distribution since it was still in
preliminary format.
The arc command CLIP was used with the BASIN_BOUND cover to acquire
the data within the Missouri/Mississippi River Basin area.
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.
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).
Source_Used_Citation_Abbreviation:
Export file us_9310.e00
Process_Date:
In 1994 the national map file was imported to the SAST database.
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, PRECIP.
Indirect_Spatial_Reference:
Digital line data represented in ARC/INFO that depict annual
precipitation, attributes or codes for naming, and pointers for
referencing.
Direct_Spatial_Reference_Method:
Point and Vector
Point/Vector_Object_Information:
Number of Points: 115
Number of lines: 371
Number of line segments: 60561
Number of Polygons: 116
Point_Object_Information:
Number of control points: 4
SDTS_Terms_Description:
An area is a generic term for bounded, continuous, two-dimensional object
that may or may not include its boundary. 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 polygon coverage
Entity_Type_Label: PRECIP.PAT
Entity_Type_Definition: Polygon attribute table
Entity_Type_Definition_Source: ARC/INFO-generated attributes and
items
DATAFILE NAME: PRECIP.PAT
8 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 PRECIP# 4 5 B -
21 PRECIP-ID 4 5 B -
25 PRECIP-MID 3 3 I -
28 PRECIP-BOT 3 3 I -
31 PRECIP-TOP 3 3 I -
34 PLTSYM 3 3 I -
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: PRECIP#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: PRECIP-ID
Attribute_Definition: User-assigned feature number
Attribute_Definition_Source: User-defined
Attribute _Domain_Values: Integer
Attribute_Label: PRECIP-MID
Attribute_Definition: medium value between the top and bottom
Attribute_Definition_Source: Oregon State University
Attribute_Domain_Values: Integer, 0-180
Attribute_Label: PRECIP_BOT
Attribute_Definition: value of the minimum contour that bounds the
polygon
Attribute_Definition_Source: Oregon State University
Attribute_Domain_Values: Integer, 0-120 inches
Attribute_Label: PRECIP_TOP
Attribute_Definition: value of the maximum contour that bounds the
polygon
Attribute_Definition_Source: Oregon State University
Attribute_Domain_Values: Integer, 0-200
Entity_Type:
Entity_Type: An ARC/INFO line coverage
Entity_Type_label: PRECIP.AAT
Entity_Type_Definition: Arc attribute table
Entity_Type_Definition_Source: Computed
DATAFILE NAME: PRECIP.AAT
10 ITEMS: STARTING IN POSITION 1
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 PRECIP# 4 5 B -
29 PRECIP-ID 4 5 B -
33 CONTOUR 4 12 F 3
37 ISO 4 4 I -
41 FLAG 1 1 C -
Attributes:
Attribute_Label: FNODE#
Attribute_Definition: Internal number of from-node
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: TNODE#
Attribute_Definition: Internal number of to-node
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: LPOLY#
Attribute_Definition: Internal number of poly to left of arc
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: RPOLY#
Attribute_Definition: Internal number of poly to right of arc
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: LENGTH
Attribute_Definition: Length of arc in meters
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Positive real numbers
Attribute_Label: PRECIP#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Computed
Attribute_Domain_Values: Sequential unique positive integer
Attribute_Label: PRECIP-ID
Attribute_Definition: User-assigned feature number
Attribute_Definition_Source: User-defined
Attribute_Domain_Values: Integer
Attribute_Label: CONTOUR
Attribute_Definition: contour value for mean annual precipitation
Attribute_Definition_Source: User-defined
Attribute_Domain_Values: Integer
Attribute_Label: ISO
Attribute_Definition: Isohyet value for mean annual precipitation
Attribute_Definition_Source: User-defined
Attribute_Domain_Values: Integer
Attribute_Label: FLAG
Attribute_Definition: unknown
Attribute_Definition_Source:
Attribute_Domain_Values: y or x
Overview_Description:
Entity_and_Attribute_Overview:
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); polygon attributes are stored in
Polygon Attribute Tables (PATs); and point attributes are stored
in Point 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:
Annual Average Precipitation Map for the USA. Oregon State
University, 1994.
The national precipitation map has been improved since its preliminary
release and available in monthly form as well as annual. These data can be
obtained from the Oregon Climate Service (OCS).
Distributor: Oregon State University
Contact_Information:
Contact_Person: George Taylor
Contact_Address:
Address: George Taylor
Oregon Climate Service
Oregon State University
City: Corvallis
State: OR
Postal_Code: 97330
Country: USA
Contact_Voice_Telephone: 503 737 5705
Contact_Facsimile_Telephone: 503 737 2540
Contact_Electronic_Mail: oregon@ats.orst.edu
Distribution_Information:
The precipitation map covering the SAST study area is only available in the
original draft format.
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) ARC/INFO coverage of
precipitation data along the Upper Mississippi/Missouri River.
Distribution_Liability:
The SAST has been cautioned distributing the precipitation data as a
national coverage due to its preliminary nature. This ARC/INFO data set
only covers the river basin area and will be released as such.
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 and arc coverage data set or layer
Format_Information_Content: annual precipitation
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 and arc coverage data set or layer
Format_Information_Content: annual precipitation
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 and line coverage data set or layer
Format_Information_Content: annual precipitation
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: 19950717
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
USGS Node of SAST Clearinghouse home page
