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Connecticut Natural Diversity Database Areas
SDE Feature Class - depgis.DEP.NATURAL_DIVERSITY_DATABASE
FGDC, ESRI Metadata
DescriptionGraphicSpatialData StructureData QualityData SourceData DistributionMetadata
+ Resource Description
Citation
Information used to reference the data.
Title: Connecticut Natural Diversity Database Areas
Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Publisher: State of Connecticut, Department of Environmental Protection
Publication place: Hartford, Connecticut, USA
Publication date: 20091201
Data type: vector digital data
Data location: http://www.ct.gov/dep
Other citation details: 
The State of Connecticut, Department of Environmental Protection is the collector of the data (compiler), the creator and maintainer of the data layer (editor), and producer (publisher) of this information for use. Data compiled at 1:24,000 scale. These data are updated on a regular basis two times each year.
Description
A characterization of the data, including its intended use and limitations.
Abstract: 
The Natural Diversity Database Areas is a 1:24,000-scale, polygon feature-based layer that represents general locations of endangered, threatened and special concern species and significant natural communities. The layer is based on information collected by DEP staff, cooperating scientists, conservation groups and landowners. In some cases an occurrence represents a location derived from literature, museum records and specimens. These data are compiled and maintained by the DEP Bureau of Natural Resources, Natural Diversity Database Program. The layer is updated every six months and reflects information that has been submitted and accepted up to that point. The layer includes state and federally listed species and significant natural communities. It does not include Natural Area Preserves, designated wetland areas or wildlife concentration areas. These general locations were created by randomly shifting the true locations of each species and then adding a 0.25 mile buffer distance to each point. The exact location of the species or community falls somewhere within the polygon area and not necessarily in the center. Attribute information includes the date when these data were last updated. Species names are withheld to protect sensitive species from collection and disturbance. Data is compiled at 1:24,000 scale. These data are updated every six months, approximately in June and December. It is important to use the most current data available.
Purpose: 
The Natural Diversity Database Areas is 1:24,000-scale data. It depicts the approximate locations of state and federal listed species and significant natural communities. This data is intended to be used as a pre-screening tool to identify potential impacts to sensitive species. The data may also be used to target areas of potential conservation interest. More information can be obtained by submitting written environmental review request to the Natural Diversity Database. Not intended for maps printed at map scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet.)
Supplemental information: 
For additional information, refer to the Department of Environmental Protection Endangered Species web page at www.ct.gov/dep/endangeredspecies.
Language of dataset: en
Point Of Contact
Contact information for the individual or organization that is knowledgeable about the data.
Organization: State of Connecticut, Department of Environmental Protection
Person: Karen Zyko
Phone: 860-424-3011 { CENTRAL OFFICE PHONE }
Fax: 860-424-4078 { CENTRAL OFFICE FAX }
Email: dep.gisdata@po.state.ct.us
Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical address
Address: 
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106-5127
Country: USA
Data Type
How the data are represented, formatted and maintained by the data producing organization.
File or table name: depgis.DEP.NATURAL_DIVERSITY_DATABASE
Data type: vector digital data
Data format: SDE Feature Class
Native dataset environment: These data are maintained by the State of Connecticut using ArcGIS software developed by Environmental Systems Research Institute (ESRI) in a Microsoft Windows operating system environment.
Time Period of Data
Time period(s) for which the data corresponds to the currentness reference.
Date: 20091201
Currentness reference: 
publication date
Status
The state of and maintenance information for the data.
Data status: Complete
Update frequency: Two times each year in June and December
Key Words
Words or phrases that summarize certain aspects of the data.
Theme:
Keywords: biota, environment
Keyword thesaurus: ISO 19115 Topic Category
Place:
Keywords: Connecticut, CT
Keyword thesaurus: U.S. Department of Commerce, 1987, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, DC, National Institute of Standards and Technology.
Data Access Constraints
Restrictions and legal prerequisites for accessing or using the data after access is granted.
Access constraints: 
None. No restrictions or legal prerequisites for accessing the data. The data is in the public domain and may be redistributed.
Use constraints: 
None. No restrictions or legal prerequisites for using the data after access is granted. The data is suitable for use at appropriate scale, and is not intended for maps printed at scales greater or more detailed than 1:24,000 scale (1 inch = 2,000 feet). Although these data have been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata. When printing this data on a map or using it in a software application, analysis, or report, please acknowledge the State of Connecticut, Department of Environmental Protection as the source for this information. For example, include the following data source description when printing this layer on a map: Natural Diversity Database Areas - Compiled by CT DEP.
Data Security Information
Handling restrictions imposed on the data because of national security, privacy or other concerns.
Security classifiction system: None
Security classification: None
Security handling: No restrictions for handling the data.
+ Graphic Example
Browse Graphic
Graphic illustration of the data.
Browse graphic 1
Open - Full view of Connecticut Natural Diversity Database Areas
Graphic Image
Browse graphic 2
Open - Detail view of Connecticut Natural Diversity Database Areas
Graphic Image
+ Spatial Reference Information
Horizontal Coordinate System
Reference system from which linear or angular quantities are measured and assigned to the position that a point occupies.
Projected coordinate system:
Name: NAD 1983 StatePlane Connecticut FIPS 0600 Feet
Map units: survey feet
Geographic coordinate system:
Name: GCS North American 1983
Coordinate System Details
Map projection
Map projection name: Lambert Conformal Conic
Standard parallel: 41.200000
Standard parallel: 41.866667
Longitude of central meridian: -72.750000
Latitude of projection origin: 40.833333
False easting: 999999.999996
False northing: 499999.999998
Planar Coordinate Information
Planar coordinate encoding method: coordinate pair
Coordinate representation:
Abscissa resolution: 0.000000
Ordinate resolution: 0.000000
Planar distance units: survey feet
Geodetic model
Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222
Vertical Coordinate System
Reference system from which vertical distances (altitudes or depths) are measured.
Altitude system definition:
Altitude resolution: 1.000000
Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates
Spatial Domain
The geographic areal domain of the data that describes the western, eastern, northern, and southern geographic limits of data coverage.
Bounding Coordinates
In Projected or local coordinates
NAD 1983 StatePlane Connecticut FIPS 0600 Feet
Boundary Coordinate
Left 732134.116250 (survey feet)
Right 1265169.201500 (survey feet)
Top 946005.101250 (survey feet)
Bottom 553736.052000 (survey feet)
In Unprojected coordinates (geographic)
GCS North American 1983
Boundary Coordinate
West -73.736064 (longitude)
East -71.773659 (longitude)
North 42.057030 (latitude)
South 40.977584 (latitude)
+ Data Structure and Attribute Information
Overview
Summary of the information content of the data, including other references to complete descriptions of entity types, attributes, and attribute values for the data.
Entity and attribute overview: 
Limited attributes have been included with this generalized data product. Species names and other identifiers have been purposely withheld.  The Mapdate attribute is important to note as the data are updated twice a year.  More information can be obtained by submitting written environmental review request to the Natural Diversity Database.
Direct spatial reference method: Vector
Indirect spatial reference method: none
Attributes of Connecticut Natural Diveristy Database Areas
Detailed descriptions of entity type, attributes, and attribute values for the data.
Name: depgis.DEP.NATURAL_DIVERSITY_DATABASE
Type of object: Feature Class
Geometry type: Polygon
Number of records: 1277
Description: 
Natural Diveristy Database Areas represented as polygon features.
Source: 
State of Connecticut, Department of Environmental Protection
Attributes
OBJECTID
Definition: 
Internal feature number.
Alias: OBJECTID Type: OID Width: 4 Precision: 10 Scale: 0
Attribute values: Sequential unique whole numbers that are automatically generated.
Attribute definition source: 
ESRI
MAPDATE
Definition: 
This is the official publication date of this dataset. These data are updated every six months.
Alias: MAPDATE Type: String Width: 16 Precision: 0 Scale: 0
AV_LEGEND
Alias: AV_LEGEND Type: String Width: 16 Precision: 0 Scale: 0
NDDB_FLG
Alias: NDDB_FLG Type: String Width: 5 Precision: 0 Scale: 0
SHAPE
Definition: 
Feature geometry.
Alias: Shape Type: Geometry Width: 4 Precision: 0 Scale: 0
Attribute values: Coordinates defining the features.
Attribute definition source: 
ESRI
SHAPE.area
Alias: SHAPE.area Type: Double Width: 0 Precision: 0 Scale: 0
SHAPE.len
Alias: SHAPE.len Type: Double Width: 0 Precision: 0 Scale: 0
ESRI Feature Description
Description of spatial objects in the data using the Environmental Systems Research Institute (ESRI) terminology.
Environmental Systems Research Institute (ESRI) terms
depgis.DEP.NATURAL_DIVERSITY_DATABASE
ESRI feature type: Simple
Geometry type: Polygon
Topology: FALSE
Feature count: 1277
Spatial index: TRUE
Linear referencing: FALSE
SDTS Feature Description
Description of point and vector spatial objects in the data using the Spatial Data Transfer Standards (SDTS) terminology.
Spatial data transfer standard (SDTS) terms
depgis.DEP.NATURAL_DIVERSITY_DATABASE
Type: G-polygon
Count: 1245
+ Data Quality and Accuracy Information
General
Information about the fidelity of relationships, data quality and accuracy tests, omissions, selection criteria, generalization, and definitions used to derive the data.
Logical consistency report: 
Polygon features conform to the following topological rules. Polygons are single part. There are no duplicate polygons. Polygons do not self overlap. Polygons do not overlap other polygons. Establishment of logical consistency was performed by the State of Connecticut, Department of Environmental Protection using ESRI ArcGIS software using an automated process to create and control feature topology. No automated procedures or tests were performed to guarantee desired topology other than visual inspection.
Completeness report: 
The Natural Diversity Database is the central repository for state listed species data in the state. Data recruitment is on-going. The data provided to the database is not necessarily the result of statewide or comprehensive field surveys. The species selected to be included in this data product are those officially listed in the Connecticut Endangered Species Regulations at the time the layer was created. The layer is complete in the sense that it accurately reflects the data submitted and accepted by the Natural Diversity Database at the time the State of Connecticut, Department of Environmental Protection created the layer.  This data is updated every six months.
Positional Accuracy
Accuracy of the positional aspects of the data.
Horizontal accuracy report: 
The horizontal positional accuracy of this data is unknown. The original locations have been purposely shifted and buffered to protect the exact locations and to create this generalized layer.  Some polygons represent observations that are transient or temporal in nature and are not easily recoverable on the ground (e.g. animal breeding or nesting sites).
+ Data Source and Process Information
Data Sources
Information about the source data used to construct or derive the data.
Data source information
Source 1 - NDDB
Title: Connecticut Natural Diversity Database
Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Data type: model
Map scale denominator: 24000
Media: disc
Date: 20091117
Currentness reference: 
publication date
Source 2 - NDDB Areas
Title: Natural Diversity Database Areas - State and Federal Listed Species and Significant Natural Communities
Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Series name: State and Federal Listed Species and Significant Natural Communities
Publisher: State of Connecticut, Department of Environmental Protection
Publication place: Hartford, Connecticut, USA
Publication date: 20090701
Data type: vector digital data
Data location: http://www.ct.gov/dep
Map scale denominator: 24000
Media: disc
Date: 20091201
Currentness reference: 
publication date
Process Steps
Information about events, parameters, tolerances and techniques applied to construct or derive the data.
Process step information
Process Step 1
Process description: 
The Natural Diversity Database tracks data on the locations of state listed species and significant natural communities.  Polygons are created and stored using NatureServe's Natural Heritage Methodology. Polygons are extracted from the database to create this generalized product called the Natural Diversity Database Areas.  Polygon centroids are calculated from the original data and a random X,Y coordinate shift is applied to each record.  The shifted coordinates are then projected and buffered by 0.25 miles to create generalized locations.  Topology rules are created to ensure that all of the original polygons are covered by the new generalized areas.
Organization: State of Connecticut, Department of Environmental Protection
Person: Karen Zyko
Phone: 860-424-3011 { CENTRAL OFFICE PHONE }
Address type: mailing and physical address
Address: 
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106
Country: USA
Process date: 20091117
Data Source used
Source 1 - NDDB
Title: Connecticut Natural Diversity Database
Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Data type: model
Map scale denominator: 24000
Media: disc
Date: 20091117
Currentness reference: 
publication date
Data Source produced
Source 2 - NDDB Areas
Title: Natural Diversity Database Areas - State and Federal Listed Species and Significant Natural Communities
Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor and publisher)
Series name: State and Federal Listed Species and Significant Natural Communities
Publisher: State of Connecticut, Department of Environmental Protection
Publication place: Hartford, Connecticut, USA
Publication date: 20090701
Data type: vector digital data
Data location: http://www.ct.gov/dep
Map scale denominator: 24000
Media: disc
Date: 20091201
Currentness reference: 
publication date
Process Step 2
Process description: 
Metadata imported.
Process date: 20090915 Process time: 09505700
Data Source used
C:\GIS\model\blob\metadata09152009.xml
ESRI geoprocessing history
Description of ESRI geoprocessing commands, settings, and tolerances applied to the data.
ESRI geoprocessing command information
1 Process
Date: 20091123 Time: 150829
Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\DeleteFeatures
Command issued: DeleteFeatures Output_Target Output_Target
2 Process
Date: 20091123 Time: 150831
Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\Append
Command issued: Append Output_Source Output_Target TEST # # Output_Target
+ Data Distribution Information
General
Description of the data known by the party from whom the data may be obtained, liability of party distributing data, and technical capabilities required to use the data.
Resource description: 
Connecticut Natural Diversity Database Areas
Distribution liability: 
Although this data set  has been used by the State of Connecticut, Department of Environmental Protection, no warranty, expressed or implied, is made by the State of Connecticut, Department of Environmental Protection as to the accuracy of the data and or related materials.  The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the State of Connecticut, Department of Environmental Protection in the use of these data or related materials. The user assumes the entire risk related to the use of these data. Once the data is distributed to the user, modifications made to the data by the user should be noted in the metadata.
Technical prerequisites: 
Geographic information sytem (GIS), computer-aided drawing or other mapping software is necessary to display, view and access the information.
Distribution Point of Contact
Contact information for the individual or organization distributing the data.
Organization: State of Connecticut, Department of Enviromental Protection
Phone: 860-424-3540
Fax: 860-424-4058
Email: dep.gisdata@po.state.ct.us
Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical address
Address: 
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106-5127
Country: USA
Standard Order Process
Common ways in which data may be obtained.
Digital form:
Format name: ESRI shapefile
Format version number: ArcGIS 9
Transfer size: 5.254
File decompression technique: Zip file
Digital transfer option:
Online option:
Computer information:
Network address:
Network resource name: http://www.ct.gov/dep
Fees: An online copy of the data may be accessed without charge.
Custom Order Process
Description of custom distribution services available.
Custom order process: 
The data distributor does not provide custom GIS analysis or mapping services. Data is available in a standard format and may be converted to other formats, projections, coordinate systems, or selected for specific geographic regions by the party receiving the data.
+ Metadata Reference
Metadata Date
Dates associated with creating, updating and reviewing the metadata.
Last updated: 20091201
Language of metadata: en
Metadata Point of Contact
Contact information for the individual or organization responsible for the metadata information.
Organization: State of Connecticut, Department of Environmental Protection
Person: Karen Zyko
Phone: 860-424-3011 { CENTRAL OFFICE PHONE }
Fax: 860-424-4078 { CENTRAL OFFICE FAX }
Email: dep.gisdata@po.state.ct.us
Hours of service: Monday to Friday, 08:30 to 16:30 Eastern Standard Time
Address type: mailing and physical address
Address: 
79 Elm Street
City: Hartford
State or Province: Connecticut
Postal code: 06106-5127
Country: USA
Metadata Access Constraints
Restrictions and legal prerequisites for accessing or using the data after access is granted.
Access constraints: 
None. No restrictions or legal prerequisites for accessing the metadata.
Use constraints: 
None. No restrictions or legal prerequisites for using the metadata after access is granted.
Metadata Security Information
Handling restrictions imposed on the metadata because of national security, privacy or other concerns.
Security classifiction system: None
Security classification: None
Security handling: No restrictions for handling the metadata.
Metadata Standards
Description of the metadata standard used to document the data and reference to any additional extended profiles to the standard used by the metadata producer.
Standard name: FGDC Content Standards for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention: local time
Metadata profiles defining additonal information:
Profile: ESRI Metadata Profile
Online linkage: http://www.esri.com/metadata/esriprof80.html
Profile: ESRI Metadata Profile
Online linkage: http://www.esri.com/metadata/esriprof80.html
FGDC Plus Metadata Stylesheet
Stylesheet: FGDC Plus Stylesheet
File name: FGDC Plus.xsl
Version: 2.2
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 displays metadata elements defined in the Content Standard for Digital Geospatial Metadata (CSDGM) - aka FGDC Standard, the ESRI Profile of CSDGM, the Biological Data Profile of CSDGM, and the Shoreline Data Profile of CSDGM. CSDGM is the US Federal Metadata standard. The Federal Geographic Data Committee originally adopted the CSDGM in 1994 and revised it in 1998. According to Executive Order 12096 all Federal agencies are ordered to use this standard to document geospatial data created as of January, 1995. The standard is often referred to as the FGDC Metadata Standard and has been implemented beyond the federal level with State and local governments adopting the metadata standard as well. The Biological Data Profile broadens the application of the CSDGM so that it is more easily applied to biological data that are not explicitly geographic (laboratory results, field notes, specimen collections, research reports) but can be associated with a geographic location. Includes taxonomical vocabulary. The Shoreline Data Profile addresses variability in the definition and mapping of shorelines by providing a standardized set of terms and data elements required to support metadata for shoreline and coastal data sets. The FGDC Plus Stylesheet includes the Dublin Core Metadata Element Set. It supports W3C DOM compatible browsers such as IE7, IE6, Netscape 7, and Mozilla Firefox. It is in the public domain and may be freely used, modified, and redistributed. It is provided "AS-IS" without warranty or technical support.
Instructions: On the top of the page, click on the title of the dataset to toggle opening and closing of all metadata content sections or click section links listed horizontally below the title to open individual sections. Click on a section name (e.g. Description) to open and close section content. Within a section, click on a item name (Status, Key Words, etc.) to open and close individual content items. By default, the Citation information within the Description section is always open for display.
Download: FGDC Plus Stylesheet is available from the ArcScripts downloads at www.esri.com.
Federal Geographic Data Committee