Connecticut Eelgrass Beds 2006 Poly

+ Resource Description

Citation

Information used to reference the data.

Title: Connecticut Eelgrass Beds 2006 Poly

Originators: USFWS NWI Region 5

Publication date: Unknown

Data type: vector digital data

Data location: http://www.ct.gov/deep

Description

A characterization of the data, including its intended use and limitations.

Abstract:

This data layer was created by the USFWS National Wetlands Inventory, Region 5.  Delineations of 2006 eelgrass beds were completed on the eastern Connecticut shoreline to the Rhode Island border.  Fisher Island, Plum Island, and the northern shore of Long Island, New York were also included in this work.  Spring 2006 True Color aerial photography was taken at a scale of 1:20,000 and used for detemining location and delineation of eelgrass beds.  Extensive field work was conducted by the USFWS Region 5 Southern Coastal Zone program in September, October and November, with 290 field sites. The 2006 photography was scanned and geo-rectified using 2004 ADS 1/2 meter true color imagery.

Purpose:

This dataset was developed for an ongoing eelgrass monitoring of the Long Island Sound.  Funding was provided by the EPA, Region 2.

Language of dataset: en

Point Of Contact

Contact information for the individual or organization that is knowledgeable about the data.

Person: Ralph Tiner

Organization: U.S. Fish & Wildlife Service, Northeast Region

Position: National Wetlands Inventory, R5 Coordinator

Phone: 413-253-8620

Email: ralph_tiner@fws.gov

Address type: mailing and physical address

Address:

300 Westgate Center Drive

City: Hadley

State or Province: Massachusetts

Postal code: 01035

Data Type

How the data are represented, formatted and maintained by the data producing organization.

File or table name: depgis.DEP.EELGRASS_BEDS_2006_POLY

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: 6/16/06 Time: morning

Currentness reference:

ground condition

Status

The state of and maintenance information for the data.

Data status: Complete

Update frequency: Unknown

Key Words

Words or phrases that summarize certain aspects of the data.

Theme:

Keywords: eelgrass

Keyword thesaurus: SAV

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.

Place:

Keywords: United States of America, USA

Keyword thesaurus: U.S. Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions (Federal Information Processing Standard (FIPS) 10-4): Washington, D.C., 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:

no known access retrictions

Use constraints:

contraints based on limitation of methods of aquiring data through remotely sensed processes.

+ Graphic Example

Browse Graphic

Graphic illustration of the data.

Browse graphic 1

Open - Full view

Browse graphic 2

Open - Detail view

+ 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: 0.000250

Ordinate resolution: 0.000250

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	1073522.988000 (survey feet)
Right	1240509.581000 (survey feet)
Top	699628.722000 (survey feet)
Bottom	617338.982000 (survey feet)

In Unprojected coordinates (geographic)

GCS North American 1983

Boundary	Coordinate
West	-72.483019 (longitude)
East	-71.873644 (longitude)
North	41.380907 (latitude)
South	41.152040 (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.

Direct spatial reference method: Vector

Attributes of Connectcut Eelgrass Beds 2006 Poly

Detailed descriptions of entity type, attributes, and attribute values for the data.

Name: depgis.DEP.EELGRASS_BEDS_2006_POLY

Type of object: Feature Class

Geometry type: Polygon

Number of records: 176

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

Shape

Definition:

Feature geometry.

Alias: ACRES Type: Double Width: 8 Precision: 16 Scale: 5

Attribute values: Coordinates defining the features.

Attribute definition source:

ESRI

ACRES

Definition:

Area of polygon

Alias: SITE_ID Type: SmallInteger Width: 2 Precision: 5 Scale: 0

SITE_ID

Definition:

numeric site #

Alias: LOCATION Type: String Width: 50 Precision: 0 Scale: 0

LOCATION

Definition:

Approximate location based adjacent areas

Alias: WATERSHED Type: SmallInteger Width: 2 Precision: 5 Scale: 0

WATERSHED

Definition:

Watershed numeric value

Alias: SIGNATURES Type: SmallInteger Width: 2 Precision: 5 Scale: 0

SIGNATURES

Definition:

signatures of interpreted eelgrass bed

Alias: FIELD_06_V Type: String Width: 20 Precision: 0 Scale: 0

Attribute domain values


Patches, Dark Grn
Patches, Grn/Brn
Patches, Light Grn
Solid, Dark Grn
Solid, Dark Grn/Brn
Solid, Dark Grn/Blk
Solid, Grn/Brn
Solid, Light Grn
Undetermined

Value	Definition
1	Patches, Dark Grn
2	Patches, Grn/Brn
3	Patches, Light Grn
4	Solid, Dark Grn
5	Solid, Dark Grn/Brn
6	Solid, Dark Grn/Blk
7	Solid, Grn/Brn
8	Solid, Light Grn
9	Undetermined

FIELD_06_V

Alias: FIELD_02_V Type: String Width: 20 Precision: 0 Scale: 0

FIELD_02_V

Definition:

Feature geometry.

Alias: Shape Type: Geometry Width: 4 Precision: 0 Scale: 0

Attribute values: Coordinates defining the features.

Attribute definition source:

ESRI

SHAPE

Definition:

Feature geometry.

Alias: BED_DENSITY Type: String Width: 1 Precision: 0 Scale: 0

Attribute values: Coordinates defining the features.

Attribute definition source:

ESRI

BED_DENSITY

Alias: SHAPE.area Type: Double Width: 0 Precision: 0 Scale: 0

SHAPE.area

Alias: SHAPE.len 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.EELGRASS_BEDS_2006_POLY

ESRI feature type: Simple

Geometry type: Polygon

Topology: FALSE

Feature count: 176

Spatial index: TRUE

Linear referencing: FALSE

XY Rank: 1

Z Rank: 1

Topology weight: 5.000000

Events on validation: FALSE

Participates in topology rules:

Rule Id: 3

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.EELGRASS_BEDS_2006_POLY

Type: G-polygon

Count: 176

+ 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:

Photography was taken in one single flgiht mission on June 16, 2006

Cloud cover: none

Attribute Accuracy

Accuracy of the identification of data entities, features and assignment of attribute values.

Attribute accuracy report:

Attribute accuracy  based on quality of 1:20000 photography, and the ability to indentify submerged vegetation and the density of beds.

Positional Accuracy

Accuracy of the positional aspects of the data.

Horizontal accuracy report:

Based on photography, and the abiltiy to identify eelgrass beds and delineate them from 1:20,000 True Color geo-rectified photography

+ Data Source and Process Information

Data Sources

Information about the source data used to construct or derive the data.

Data source information

Data Source 1

Map scale denominator: 1:20,000

Media: True Color photography

Source contribution:

Sames W. Sewall 
CORPORATE HEADQUARTERS
136 Center Street, P.O. Box 433 
Old Town, Maine 04468-0433 
207 827 4456
fax: 207 827 3641

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 2006, 1:20000 true color photography was scanned and geo-rectified to ADS 2004 true color 1/2 meter resolution imagery for Connecticut, and 1-ft resoluton  true color 2004 New York State imagery.  The 2002 eelgrass datalayer was used as a base, and polygonal data was added, subtracted or adjusted to reflect what was identified on the newer imagery.  Field work was completed using a USFWS research vessel, and USFWS personnel.  Two hundred and ninety sites were checked and documented.  This information was converted to a point datalayer and used to adjust the original delineation.

Person: Herb Bergquist

Organization: USFWS

Position: GIS Specialist/Biologist

Phone: 413-253-8621

Email: h_bergquist@fws.gov

Process date: Dec '06 - Feb '07

Process software and version: ArcGIS 9.1

ESRI geoprocessing history

Description of ESRI geoprocessing commands, settings, and tolerances applied to the data.

ESRI geoprocessing command information

1 Process

Date: 20070725 Time: 154603

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures

Command issued: CopyFeatures U:\Geodatabase\ct_eelgrass_2006.mdb\usfws_source\Eelgrass_2006_polys R:\Archive\kevin\final\Eelgrass_2006_polys.shp # 0 0 0

2 Process

Date: 20070820 Time: 103456

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures

Command issued: CopyFeatures R:\Archive\coast\Eelgrass_Beds_2006_Poly.shp R:\GeoData\Coast\geodatabase\coastal.mdb\Eelgrass_Beds_2006_Poly # 0 0 0

3 Process

Date: 20070820 Time: 140521

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures

Command issued: CopyFeatures R:\GeoData\Coast\geodatabase\coastal.mdb\Eelgrass_Beds_2006_Poly "Database Connections\10.18.8.94.depgis@DEP_Direct.sde\depgis.DEP.Eelgrass_Beds_2006_Poly" DEPVECTORSTATIC 2000 0 0

4 CopyFeatures_47

Date: 20081215 Time: 155009

Tool location: C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures

Command issued: CopyFeatures "Database Connections\10.18.8.94.depgis@DEP.sde\depgis.DEP.EELGRASS_BEDS_2006_POLY" "Database Connections\062174-svr.depgis@DEP.sde\depgis.DEP.EELGRASS_BEDS_2006_POLY" DEPFEATURESTATIC 0 0 0

+ 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:

Connectcut Eelgrass Beds 2006 Poly

Standard Order Process

Common ways in which data may be obtained.

Digital form:

Format name: Shapefile, Feature Class

Format version number: ArcGIS

File decompression technique: Zip

Digital transfer option:

Online option:

Computer information:

Network address:

Network resource name: http://www.ct.gov/deep

+ Metadata Reference

Metadata Date

Dates associated with creating, updating and reviewing the metadata.

Last updated: 20120119

Language of metadata: en

Metadata Point of Contact

Contact information for the individual or organization responsible for the metadata information.

Organization: U.S. Fish & Wildlife Service

Person: Herb Bergquist

Position: GIS Specialist/Biologist

Phone: 413-253-8621

Address type: mailing and physical address

Address:

300 Westgate Center Drive

City: Hadley

State or Province: Massachusetts

Postal code: 01035

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

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.