Connecticut 2004 Coastal Orthophoto Tile Index

+ Resource Description

Citation

Information used to reference the data.

Title: Connecticut 2004 Coastal Orthophoto Tile Index

Originators: State of Connecticut, Department of Environmental Protection (data compiler, editor, and publisher)

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:

Connecticut 2004 Coastal  Orthophoto Tile Index is a polygon feature class that defines the (rectangular) geographic area covered by each Connecticut 2004 coastal orthophoto image tile.  The 2004 orthophoto data for Connecticut is comprised of 98 orthophoto tiles corresponding to the USGS 3.75 minute quarter quad grid for Connecticut.  These data include a tile footprint polygon feature for each orthophoto based quarter quad in the extent of the project area.

Each polygon feature is identified by a unique TILECODE value, which matches the filename of the corresponding digital orthophoto tile.  All tiles also include basic information on the flight including the year, photography type, tide control, vegetation state, scale, etc.

Purpose:

These data serve as a polygon index to the set of 2004 coastal orthophoto image tiles for Connecticut.

Language of dataset: en

Data Type

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

File or table name: depgis.DEP.ORTHO_2004_COAST_INDEX_TILE

Data type: vector digital data

Data format: SDE Feature Class

Native dataset environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000

Status

The state of and maintenance information for the data.

Data status: Complete

Update frequency: None planned

Key Words

Words or phrases that summarize certain aspects of the data.

Theme:

Keywords: imageryBaseMapsEarthCover

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.

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:

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 accessing the data. The data is in the public domain and may be redistributed.

+ Graphic Example

Browse Graphic

Graphic illustration of the data.

Browse graphic 1

Open - Full view of Coastal Connecticut 2004 Orthophoto Tile Index

Browse graphic 2

Open - Detail view of Coastal Connecticut 2004 Orthophoto Tile Index

+ 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	723536.021000 (survey feet)
Right	1258237.201000 (survey feet)
Top	790047.001000 (survey feet)
Bottom	538630.882000 (survey feet)

In Unprojected coordinates (geographic)

GCS North American 1983

Boundary	Coordinate
West	-73.761209 (longitude)
East	-71.805453 (longitude)
North	41.629366 (latitude)
South	40.934965 (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 Connecticut 2004 Coastal Orthophoto Tile Index

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

Name: depgis.DEP.ORTHO_2004_COAST_INDEX_TILE

Type of object: Feature Class

Geometry type: Polygon

Number of records: 122

Description:

Orthophoto tile footprint. One polygon feature per orthophoto tile covering the project area as defined in the abstract.

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

SHAPE

Definition:

Feature geometry.

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

Attribute values: Coordinates defining the features.

Attribute definition source:

ESRI

TILECODE

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

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.ORTHO_2004_COAST_INDEX_TILE

ESRI feature type: Simple

Geometry type: Polygon

Topology: FALSE

Feature count: 122

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.ORTHO_2004_COAST_INDEX_TILE

Type: G-polygon

Count: 122

+ 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.

Completeness report:

The completeness of the data reflects the feature content of the data sources, which were mosaic of the 2004 coastal orthophotos and a tile index of USGS Quarter Quad index tiles created by the State of Connecticut Department of Environmental Protection.

Attribute Accuracy

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

Attribute accuracy report:

All attributes have valid values. Values are within defined domains. No rigid attribute accuracy tests were conducted. However, assignment of quadrangle number, quadrangle name, and quadrangle section values were conducted through spatial joins with previously quality checked quadrangle and quarter quadrangle index spatial data, followed by a visual inspection for expected results to ensure overall accuracy.

Positional Accuracy

Accuracy of the positional aspects of the data.

Horizontal accuracy report:

The horizontal positional accuracy of this data complies with the United States National Map Accuracy Standards for 1:24,000 scale maps. According to this standard, not more than 10 percent of the locations tested are to be in error by more than 1/50 inch (40 feet) measured on the publication scale of a USGS 7.5 minute topographic quadrangle map.

+ Data Source and Process Information

ESRI geoprocessing history

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

ESRI geoprocessing command information

1 CopyFeatures_1

Date: 20080708 Time: 122438

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

Command issued: CopyFeatures R:\Archive\shapes\Tile_Index.mdb\Ortho_2004_Coast_Index_Tile "Database Connections\10.18.8.94.depgis@DEP_Direct.sde\depgis.DEP.Ortho_2004_Coast_Index_Tile" DEPVECTORSTATIC 20000 0 0

2 CopyFeatures_25

Date: 20081215 Time: 161549

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.ORTHO_2004_COAST_INDEX_TILE" "Database Connections\062174-svr.depgis@DEP.sde\depgis.DEP.ORTHO_2004_COAST_INDEX_TILE" DEPFEATUREDYNAMIC 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:

Connecticut 2004 Coastal Orthophoto Tile Index

Distribution liability:

Although these data have been used by the State of Connecticut no warranty, expressed or implied, is made by the State of Connecticut 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 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.

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

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: 20120119

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: Jonathan Quinn

Phone: 860-424-3580

Fax: 860-424-4054

Email: dep.gisdata@ct.gov

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

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.