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Mauritania Level 3 Administrative Boundaries, 1996

Identification Information
Citation
Originator
United States. Agency for International Development
Originator
Famine Early Warning System Network
Publication Date
1996
Title
Mauritania Level 3 Administrative Boundaries, 1996
Edition
1
Geospatial Data Presentation Form
vector digital data
Series Information
Series Name
FEWS 3
Publication Information
Publication Place
Sioux Falls, SD, USA
Publisher
EDC/International Program
Other Citation Details
FEWS/EROS Data Center (EDC)
Online Linkage
https://www.columbia.edu/acis/eds/gis/images/fewsn_1996_mauritaniaadmn3.zip
Abstract
This ARC/INFO polygon coverage contains the third Level administrative boundaries at a 1:1000000 scale. The coverage is part of the Famine Early Warning System (FEWS) / Associates in Rural Development (ARD) African series. Mauritania is associated with the Sahel region of Africa.
Purpose
This data set is to be used in conjunction with other layers of Mauritania data. The data are intended to show the spatial distribution of the third Level administrative boundaries for Mauritania. The data are to be used in modeling, targeting and demonstration projects. The data are also used in natural resource management, inventory, change analysis, policy making, environmental awareness and land use planning.
Supplemental Information
Procedures_Used: The lowest Level map file for Mauritania, MUADU3.GIS, defines departments and was created by generating 48 Atlas Graphics .bna departmental files into ARC/INFO .gen format. The conversion from .bna to .gen format was done at EROS Data Center via a conversion routine. Once in .gen format the files were transformed from digitizer inches into lat/long coordinates via "rubber sheeting" software to establish a common reference system for the multiscale departmental sheets. Once a common reference system was established, the files were merged together in space via the ARC/INFO APPEND command. The merged file was then successively cleaned to remove dangling arcs and identify linework gaps. Label points were then added to the 43 departmental polygons (including District of Nouakchott), and the coverage built to establish correct polygonal topology. Departmental names and associated higher Level region names and codes were added from a text file to the MUADU3.GIS.PAT via the ARC/INFO ADD and JOINITEM commands. The remaining higher Level coverages were created by aggregating polygons upward from the MUADU3.GIS coverage using internal code assignments and the ARC/INFO DISSOLVE command. Label points were added to the new higher Level coverages, and the coverages were successively built to establish correct polygonal topologies. In 1989, EDC replaced the international boundary with arcs from WDBII for MRADMIN1, MRADMIN2, and MRADMIN3. All vertices of the international boundary match those of adjacent countries. Attributes were checked for consistency with the hardcopy maps distributed to the FEWS field representatives. In 1996 EDC replaced the WDBII international boundary with the international boundary from the Digital Chart of the World (DCW). These country specific sub-national boundaries were then integrated into the DCW master country database using the ARC/INFO command UPDATE. The country specific data set, containing all of the sub-national hierarchy, was extracted from the DCW master data set using the ARC/INFO command RESELECT and the third Level administrative units were extracted from the country specific data set using the ARC/INFO command DISSOLVE. A master data set, based on the Digital Chart of the World (DCW) PONET layer, was created. Burkina Faso, Mali, Ethiopia, and Eritrea are included in the master data set, however, these countries have international boundaries that have been revised. The changes to Burkina Faso are: The Digital Chart of the World (DCW) International boundary was used for the International boundary for Burkina Faso with the only revisions being those listed below. From : -2 degrees; 55 minutes; 8 seconds Longitude and : 13 degrees;37 minutes; 37 seconds Latitude To : -0 degrees; 57 minutes; 41 seconds Longitude and : 14 degrees; 52 minutes; 14 seconds Latitude AND... From : 0 degrees; 3 minutes; 33 seconds Longitude and : 14 degrees; 58 minutes; 15 seconds Latitude To : 0 degrees; 13 minutes; 55 seconds Longitude and : 14 degrees; 58 minutes; 15 seconds Latitude These changes are defined by FEWS/ARD Washington, DC, USA. The changes to Mali are: The Digital Chart of the World (DCW) International boundary was used for the International boundary for Mali with the only revisions being those listed below. From : -2 degrees; 55 minutes; 8 seconds Longitude and : 13 degrees;37 minutes; 37 seconds Latitude To : -0 degrees; 57 minutes; 41 seconds Longitude and : 14 degrees; 52 minutes; 14 seconds Latitude AND... From : 0 degrees; 3 minutes; 33 seconds Longitude and : 14 degrees; 58 minutes; 15 seconds Latitude To : 0 degrees; 13 minutes; 55 seconds Longitude and : 14 degrees; 58 minutes; 15 seconds Latitude These changes are defined by FEWS/ARD Washington, DC, USA. The changes to Ethiopia are: The Digital Chart of the World (DCW) International boundary was used for the International boundary for Ethiopia with the only revisions being those listed below. From : 36 degrees; 34 minutes; 5 seconds Longitude and : 14 degrees; 14 minutes; 25 seconds Latitude To : 42 degrees; 25 minutes; 22 seconds Longitude and : 12 degrees; 26 minutes; 53 seconds Latitude These changes are defined by FEWS/ARD Washington, DC, USA. The changes to Eritrea are: The Digital Chart of the World (DCW) International boundary was used for the International boundary of Eritrea with the only revisions being those listed below: From : 36 degrees; 34 minutes; 5 seconds Longitude and : 14 degrees; 14 minutes; 25 seconds Latitude To : 42 degrees; 25 minutes; 22 seconds Longitude and : 12 degrees; 26 minutes; 53 seconds Latitude These changes are defined by FEWS/ARD Washington, DC, USA. The international boundary for Mauritania was extracted from an ARC/INFO LIBRARY created from the ARC/INFO version of the Digital Chart of the World (DCW) using the ARC/INFO tool LIBRARIAN. Revisions: During ARC/INFO coverage development modifications were made to the digital files to generate a database with a common scale, uniform Level of resolution, consistent coding scheme and comparable (standardized) measurement data. The only revision from the original data sets was the addition of certain attributes. Reviews_Applied_to_Data: Peer review, 03/96, FEWS/ARD Washington, D.C. Digital line work and attribute data checked for discrepancies and approved for release to FEWS in-country and regional field representatives. Related_Spatial_and_Tabular_Data_Sets: None Other_References_Cited: Central Bureau for the Census of Population and Habitat, 198611-198707, "Administrative Maps of Mauritania," Departments, Gov of Mauritania. Scale - 1:1000000. Environmental Systems Research Institute (ESRI), Inc., 1993, "Digital Chart of the World (DCW)," PONET Layer. ESRI. Redlands, CA, USA. Scale - 1:1000000. Notes: USAID - United States Agency for International Development. FEWS - Famine Early Warning System ARD - Associates in Rural Development EDC - EROS Data Center USGS - United States Geological Survey
Temporal Extent
Currentness Reference
The "Administrative Maps of Mauritania" was published from 198611-198707. The sources used to make this map are unknown. The DCW database was originally published in 1992. Data currency varies from place to place depending on the currency of the Operational Navigation Charts (ONC). Chart currency ranged from the mid 1960s to the early 1990s. Compilation dates for every ONC chart are included in the database. The additional attributes were added in April of 1996 by the EROS Data Center (EDC).
Time Period
Beginning
1996
End
unknown
Bounding Box
West
-17.066521
East
-4.827674
North
27.298073
South
14.715546
Theme Keyword
boundaries
Theme Keyword Thesaurus
ISO 19115 Topic Categories
Theme Keyword
Tertiary administrative boundaries
Third Level national borders
Theme Keyword Thesaurus
None
Place Keyword
Africa
Mauritania
Place Keyword Thesaurus
Library of Congress Subject Headings
Temporal Keyword
1996
Temporal Keyword Thesaurus
None
Access Restrictions
None
Use Restrictions
None
Status
Complete
Maintenance and Update Frequency
As needed.
Point of Contact
Contact Person
Ron Smith
Delivery Point
EROS Data Center U.S. Geological Survey 47914 252nd Street
City
Sioux Falls
State
South Dakota
Postal Code
57198-0001
Country
USA
Contact Telephone
(605) 594-6522
Contact Facsimile Telephone
(605) 594-6529
Contact Electronic Mail Address
rsmith@edcmail.cr.usgs.gov
Hours of Service
0730 - 1615 CST
Credit
The USAID/FEWS Project and EDC International Program deserve credit for this data set.
Native Data Set Environment
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780
Cross-Reference
Originator
Central Bureau for the Census of Population and Habitat
Publication Date
198611-198707
Publication Time
0000
Title
Administrative Maps of Mauritania
Edition
Unknown
Geospatial Data Presentation Form
map
Series Information
Series Name
Departments
Issue Identification
None
Publication Information
Publication Place
Unknown
Publisher
Gov of Mauritania
Other Citation Details
Scale - 1:1000000
Online Linkage
Unknown
Cross-Reference
Originator
Environmental Systems Research Institute (ESRI), Inc,
Publication Date
1993
Publication Time
0000
Title
Digital Chart of the World (DCW), PONET Layer
Edition
Unknown
Geospatial Data Presentation Form
map
Collection Title
DCW
Series Information
Series Name
Unknown
Issue Identification
None
Publication Information
Publication Place
Redlands, CA, USA
Publisher
ESRI
Other Citation Details
Scale - 1:1000000
Online Linkage
http://www.esri.com
Data Quality Information
Attribute Accuracy Report
See Entity_Attribute_Information
Quantitative Attribute Accuracy Assessment
Logical Consistency Report
Polygon topology present.
Completeness 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. To the best knowledge of USAID/FEWS and EDC the data compiled in this data set meets the codes and/or procedures established for completeness and consistency.
Horizontal Positional Accuracy Report
The absolute horizontal accuracy of the DCW for all features derived from Operational Navigation Charts (ONC) is 2040 meters (6700 feet) World Geodetic System (WGS84). The absolute horizontal accuracy of the DCW for all features derived from Jet Navigation Charts (JNC) is 4270 meters (14006 feet) at 90% Circular Error.
Quantitative Horizontal Positional Accuracy Assessment
Lineage
Source
Originator
Central Bureau for the Census of Population and Habitat
Publication Date
198611-198707
Title
Administrative Maps of Mauritania
Source Scale Denominator
1000000
Type of Source Media
Hardcopy map
Source Temporal Extent
Time Period Information
Single Date/Time
Calendar Date
198611-198707
Source Currentness Reference
The dates and sources use by the "Administrative Maps of Mauritania, Departments," are unknown. The map was published from November, 1986 - July, 1987.
Contribution
Level 3 administrative boundary
Source
Originator
Environmental Systems Research Institute (ESRI), Inc.
Publication Date
1993
Title
Digital Chart of the World (DCW), PONET Layer
Source Scale Denominator
1000000
Type of Source Media
Digital file
Source Temporal Extent
Time Period Information
Single Date/Time
Calendar Date
1993
Source Currentness Reference
The DCW database was originally published in 1992. Data currency varies from place to place depending on the currency of the Operational Navigation Charts (ONC). Chart currency ranged from the mid 1960s to the early 1990s. Compilation dates for every ONC chart are included in the database.
Contribution
International boundary
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
G-polygon
Point and Vector Object Count
54
Spatial Reference Information
Horizontal Coordinate System Definition
Geographic
Latitude Resolution
0.000000
Longitude Resolution
0.000000
Geographic Coordinate Units
Decimal degrees
Geodetic Model
Horizontal Datum Name
D_Clarke_1880_RGS
Ellipsoid Name
Clarke_1880_RGS
Semi-major Axis
6378249.145000
Denominator of Flattening Ratio
293.465000
Entity and Attribute Information
Entity Type
Entity Type Label
MRADMN3.PAT
Entity Type Definition
Polygon Attribute Table
Entity Type Definition Source
FEWS/ARD Washington, DC, USA
Attributes
AREA
Area of poly/region in square coverage units
Character
Area of poly/region in square coverage units
Definition Source
Computed
PERIMETER
Perimeter of poly/region in coverage units
Positive real numbers
Perimeter of poly/region in coverage units
Definition Source
Computed
MRADMN3#
Internal feature number
Sequential unique positive integer
Internal feature number
Definition Source
Computed
MRADMN3-ID
User-assigned feature number
Integer
User-assigned feature number
Definition Source
User-defined
ID
Unique administrative unit identifier
Character
Unique administrative unit identifier
Definition Source
FEWS/ARD
CNT-ABB
Unique country abbreviation (http://www.nist.gov/itl/csl/fips/fips104.txtFederal Information Processing Standard (FIPS))
Definition Source
EDC
ADMN2
Second Level administrative unit names
Character
Second Level administrative unit names
Definition Source
FEWS/ARD
ADMN3
Third Level administrative unit names
Character
Third Level administrative unit names
Definition Source
FEWS/ARD
NUM-CODE
Unique numeric administrative unit identifier
Character
Unique numeric administrative unit identifier
Definition Source
EROS Data Center (EDC)
REGION
ARD defined region in Africa that Mauritania is associated with
MR
ARD defined region in Africa that Mauritania is associated with
Definition Source
FEWS/ARD
FEWS-ABB
Unique country abbreviation
MR
Unique country abbreviation
Definition Source
FEWS/ARD
FEWSID
Unique administrative unit identifier
Character
Unique administrative unit identifier
Definition Source
FEWS/ARD
FEWSID2
Unique identifier for the second Level administrative units
Character
Unique identifier for the second Level administrative units
Definition Source
FEWS/ARD
FEWSID3
Unique identifier for the third Level administrative units
Character
Unique identifier for the third Level administrative units
Definition Source
FEWS/ARD
Entity and Attribute Overview
The item (ID) defines the unique administrative unit code, as defined by FEWS/ARD. The item (CNT-ABB) defines the unique country abbreviation, as defined by EDC. The item (ADMN2) defines the second Level administrative unit names, as defined by FEWS/ARD. The item (ADMN3) defines the third Level administrative unit names, as defined by FEWS/ARD. The item (NUM-CODE) defines the unique numeric administrative unit identifier, as defined by EDC. The item (REGION) defines the African region that Mauritania ia associated with, as defined by FEWS/ARD. The item (FEWS-ABB) defines the unique country abbreviation, as defined by FEWS/ARD. The item (FEWSID) defines the unique administrative unit identifier, as defined by FEWS/ARD. The item (FEWSID2) defines the unique identifiers for the second Level administrative units, as defined by FEWS/ARD. The item (FEWSID3) defines the unique identifiers for the third Level administrative units, as defined by FEWS/ARD.
Distribution Information
Online Access
PC - http://edcintl.cr.usgs.gov/adds/c1/r4/mr/doc/admn/mradmn3.exe UNIX - http://edcintl.cr.usgs.gov/adds/c1/r4/mr/doc/admn/mradmn3.tar.gz
Name
Metadata Reference Information
Metadata Date
20070523
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
, Columbia University Libraries
Contact Person
GIS/Metadata Librarian
Contact Address
Address
420 W. 118th St., 215 IAB, MC 3301
City
New York
State or Province
NY
Postal Code
10027
Country
USA
Contact Voice Telephone
(212)854-6012
Contact Electronic Mail Address
data@library.columbia.edu
Metadata Standard Name
FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998
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