Originator: Spatial Analysis Unit, Carolina Population Center
Publication_Date: 1999
Title: South ISA Point Elevations
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
This data set contains point elevation features for the Southern Intensive Study Area (ISA) of the CPC Ecuador Projects, in the northern Oriente of Ecuador.
Purpose:
The point elevations in conjunction with elevation contours to create a raster digital elevation model (DEM).
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 1991
Single_Date/Time:
Calendar_Date: 1993
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.001283
East_Bounding_Coordinate: -76.752889
North_Bounding_Coordinate: -0.170591
South_Bounding_Coordinate: -0.502866
Keywords:
Theme:
Theme_Keyword_Thesaurus: Ecuador
Theme_Keyword: point elevation
Access_Constraints:
Data is available to the public, made possible through the NASA LBA program.
Use_Constraints:
There are no use constraints. However, potential users should be aware point elevations should not be used alone to create a digital elevation model, as the accuracy would be very poor.
Points were digitized by Michelle Lown, Bonnie Kaserman, and Brandie Sullivan of the Spatial Analysis Unit, Carolina Population Center. Coverages were appended by Brian Frizzelle of the Spatial Analysis Unit, Carolina Population Center.
Security_Information:
Security_Classification: Unclassified
Native_Data_Set_Environment:
Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.2.0.700
Cross_Reference:
Citation_Information:
Title: South ISA Elevation Contours
Cross_Reference:
Citation_Information:
Title: South ISA Digital Elevation Model (DEM)
Cross_Reference:
Citation_Information:
Title: North ISA Point Elevations
Cross_Reference:
Citation_Information:
Title: East ISA Point Elevations
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribution was based on the elevations assigned to points on the source map. There is 100% agreement for attribution between each digitized point and its source point. Accuracy of the attribution is dependent solely on the accuracy of the data source.
Logical_Consistency_Report: Point topology exists.
Completeness_Report: Data are complete for the ISA.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal accuracy is assumed to be within the NMAS standards for a map of this scale.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Instituto Geográfico Militar de Ecuador
Publication_Date: 1993
Title: La Joya de los Sachas
Geospatial_Data_Presentation_Form: map
Other_Citation_Details: topographic map
Source_Scale_Denominator: 1:50,000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1993
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: ec_topo
Source_Information:
Source_Citation:
Citation_Information:
Originator: Instituto Geográfico Militar de Ecuador
Publication_Date: 1991
Title: San Francisco de Orellana
Geospatial_Data_Presentation_Form: map
Other_Citation_Details: topographic map
Process_Step:
Process_Description: Points were digitized from topographic maps, and attributed.
Process_Date: 1999
Process_Step:
Process_Description: The two coverages were appended.
Attribute items are in typical ARC/INFO point format. Attributes requiring additional explanation are: ELEV – The elevation value of the point, in meters
