Global Dams is a point theme representing dams Worldwide. A variety of attribute information is provided, including names, type classifications, state-level information (1st level administrative division) and country data. This dataset is provided in both .txt files and a ESRI Geodatabase format.
Purpose
For educational, non-commercial purposes
Temporal Extent
Currentness Reference
ground condition
Time Instant
2011
Bounding Box
West
-176.735000
East
174.516667
North
71.266667
South
-43.683333
ISO Topic Category
inlandWaters
structure
Theme Keyword
Dams
Theme Keyword Thesaurus
None
Place Keyword
World
Place Keyword Thesaurus
Library of Congress Subject Headings
Temporal Keyword
2011
Temporal Keyword Thesaurus
None
Access Restrictions
For current Columbia affiliates only.
Use Restrictions
For educational, non-commercial use only.
Status
Complete
Maintenance and Update Frequency
None planned
Point of Contact
Contact Organization
Meridian World Data
Delivery Point
23 Regulus Court
City
Alameda
State
CA
Postal Code
94501
Country
USA
Contact Telephone
1-800-388-5287
Contact Electronic Mail Address
Info@MeridianWorldData.com
Hours of Service
8:00am to 4:00pm Pacific Monday thru Friday.
Native Data Set Environment
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Data Quality Information
Lineage
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
Entity point
Point and Vector Object Count
58994
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_WGS_1984
Ellipsoid Name
WGS_1984
Semi-major Axis
6378137.000000
Denominator of Flattening Ratio
298.257224
Vertical Coordinate System Definition
Altitude System Definition
Altitude Resolution
0.000100
Altitude Encoding Method
Explicit elevation coordinate included with horizontal coordinates
Entity and Attribute Information
Entity Type
Entity Type Label
GlobalDamFeatures
Entity Type Definition
Dams
Attributes
OBJECTID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
ESRI
Feature_int_id
Unique key value for Feature table.
Feature_int_variant_of_feature_int_id
If not null, indicates that this feature is a variant name for the feature with the given feature_int_id value.
FeatureType_str_code
Foreign key value into FeatureType table. See FeatureType fields.
DAM
Dam - a barrier constructed across a stream to impound water
DAMQ
Ruined Dam - a destroyed or decayed dam which is no longer functional
DAMSB
Sub-Surface Dam- a dam put down to bedrock in a sand river
DIKE
Dike - an earth or stone embankment usually constructed for flood or stream control
SPLY
Spillway - passage or outlet through which surplus water flows over, around or through a dam
Admin1_str_code
Foreign key value into Admin1 table. See Admin1 fields.
Admin2_str_code
Foreign key value into Admin2 table. See Admin2 fields.
Country_str_code
Foreign key value into Country table. See country fields.
Timezone_int_id
Foreign key value into Timezone table. See Timezone fields.
Feature_int_population_tier
Code indicating the approximate population for populated places features (note: for countries other than the United States of America, the current release targets places with a population of more than 100,000 and capitals).
1
more than 2,500,000
2
1,000,000 - 2,499,999
3
500,000 - 999,999
4
250,000 - 499,999
5
100,000 - 249,999
6
50,000 - 99,999
7
25,000 - 49,999
8
10,000 - 24,999
9
less than 10,000
10
notable populated place; population tier undetermined
Feature_int_font_code
Code indicating which Unicode Windows-based font to use to display local names using special diacritic characters.
1
Western Europe / Americas
2
Eastern Europe
3
Africa / Middle East
4
Central Asia
5
Asia / Pacific
6
Vietnam
Feature_str_name
Conventional Romanized-language recognized name of the city in current and widespread use. Clean of any specialized language diacritics - uses only standard ASCII characters. Suitable for nearly all computer systems and for printing.
Feature_str_local_name
Feature_str_name using local native language characters and spelling. May contain special foreign characters with diacritic marks. Refer to the Feature_int_font_code section for further information.
Feature_dec_lat
Latitude of the feature in decimal degrees
Feature_dec_lon
Longitude of the feature in decimal degrees
Feature_str_lat
Latitude of the feature in degrees minutes seconds
Feature_str_lon
Longitude of the feature in degrees minutes seconds - based on the UTC (GMT
Feature_dec_source_lat
Latitude of the source of a linear feature, such as a river, in decimal degrees
Feature_dec_source_lon
Longitude of the source of a linear feature, such as a river, in decimal degrees
Feature_str_source_lat
Latitude of the source of a linear feature, such as a river, in degrees minutes seconds
Feature_str_source_lon
Longitude of the source of a linear feature, such as a river, in degrees minutes seconds - based on the UTC (GMT
Shape
Feature geometry. (Coordinates defining the features.)
Definition Source
ESRI
Distribution Information
Format Name
Geopackage
Distributor
Meridian World Data
Name
Metadata Reference Information
Metadata Date
20110607
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Research Data Services (RDS), 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
