Description | Spatial | Data Structure | Metadata
Data type: vector digital data
Data Constraints and Credit
Access constraints:
Use constraints:
Spatial Reference Information
Horizontal Coordinate System
Coordinate System Details
Geographic coordinate system
Latitude resolution: 1e-008
Longitude resolution: 1e-008
Geographic coordinate units: Decimal Degrees
Geodetic model
Horizontal datum name: D North American 1983
Ellipsoid name: GRS 1980
Semi-major axis: 6378137.0
Denominator of flattening ratio: 298.257222101
Spatial Domain
Below are the western, eastern, northern, and southern geographic limits of data coverage.
Bounding Coordinates
In Unprojected coordinates (geographic)
Boundary Coordinate
West -176.713098 (latitude)
East 173.429921 (latitude)
North 71.340257 (longitude)
South -14.419950 (longitude)
Data Structure and Attribute Information
Name and Format
Data type: vector digital data
Native dataset environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS
Direct spatial reference method: Vector
Attributes of CTB_2014
Internal feature number.
Attribute values: Sequential unique whole numbers that are automatically generated.
Attribute definition source:
Feature geometry.
Attribute values: Coordinates defining the features.
Attribute definition source:
Length of feature in internal units.
Attribute values: Positive real numbers that are automatically generated.
Attribute definition source:
Area of feature in internal units squared.
Attribute values: Positive real numbers that are automatically generated.
Attribute definition source:
SDTS Feature Description
Spatial data transfer standard (SDTS) terms
Feature class
Type: GT-polygon composed of chains
Count: 29829
Metadata Reference
Metadata Date
Last updated: 20170301
Metadata Standards
Standard name: FGDC Content Standard for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention: local time
FGDC Plus Metadata Stylesheet
Stylesheet: FGDC Plus Stylesheet
File name: FGDC Plus.xsl
Version: 1.7
Description: This metadata is displayed using the FGDC Plus Stylesheet, which is an XSL template that can be used with ArcGIS software to display metadata. It shows metadata elements defined in the Federal Geographic Data Committee (FGDC) standard and the ESRI Profile of the Content Standard for Digital Geospatial Metadata (ESRI Profile). This stylsheet is in the public domain and may be freely used, modified, and redistributed. It is provided "AS-IS" without warranty or techical support.
Instructions: Click the title on the top of the page to toggle opening and closing all metadata content sections. Or tab to individual sections by clicking the section links listed horizontally below the title. Section names are centered and shown in white with a blue background. Click on a section name (e.g. Description) to open and close all section content, or individually click terms listed on the left (Status, Key Words, etc.) to individually open and close section content items. Note, some section content items (Citation, Description, etc.) are intentionally opened by default due to their importance.
Key features: Supports W3C DOM compatible browsers such as IE6, Netscape 7, and Mozilla Firefox. Metadata content organized into sections that expand and collapse. Click on title to toggle opening and closing all content (metadata sections). Page header includes menu links that tab to invidual metadata sections. Page footer links to web site. Ignores metadata XML elements that contain all whitespace (spaces, carriage returns, tabs, line feeds, etc). Over 40 metadata elements are parsed to respect line breaks introduced by metadata author to either start a new line or a new paragraph, depending on number of consecutive line breaks and white space characters present. Over 40 metadata elements are searched for internal URL strings (that contain a "://" or "www.") and converts each one to a hypertext link. Browse graphic image and description displayed together on same page if image is JPG, JPEG, GIF, PNG, or BMP. Other browse graphic file types such as PDF popup in separate window. Enumerated attribute domain values listed in HTML table, which can be opened and closed. All FGDC metadata elements supported. FGDC Process Steps include full descriptions of each Data Source Used and Produced as long as the value of Process Step's Source Citation Used (srcused) and Source Citation Produced (srcprod) metadata element match a Data Source Citation (srccitea) metadata element value. All ESRI metdata elements supported except for Binary elements used to include thumbnail image. Includes ESRI Geoprocessing History, ESRI Feature Terms, ESRI Geometric Network, ESRI Subtype, ESRI Relationship Class, ESRI Topology, and ESRI Raster elements. Topology rules are named and described as shown on the ESRI topology_rules_poster.pdf included with ArcGIS software.
Download: FGDC Plus Stylesheet is available from the ArcScripts downloads at
NEPAssist: Metadata