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2016 CT Coastal Orthophotos
FGDC, ESRI Metadata
DescriptionSpatialData StructureData QualityData SourceData DistributionMetadata
+ Resource Description
Information used to reference the data.
Title: 2016 CT Coastal Orthophotos
Originators: NOAA Office for Coastal Management In partnership with CT Department of Energy & Environmental Protection Office of Long Island Sound Programs
Publication date: 20170710
Data type: remote-sensing image
A characterization of the data, including its intended use and limitations.
Project: NOAA 2016 Multispectral Coastal Imagery Project – Connecticut Shoreline Orthoimagery Contract No. EA133C11CQ0010 Reference No. NCNP0000-16-01163 Woolpert Order No. 76783 CONTRACTOR: Woolpert, Inc. This project represents the collection of high resolution 4-band (RGB-IR) orthoimagery covering approximately 876 square miles at a 6” (0.5-foot) ground sample distance (GSD). The 4-band (RGB-IR) digital orthophotos will be delivered as 16-bit red, green, blue and infrared bands in uncompressed GeoTIFF format. The area of interest (AOI) was flown between July 26, 2016 and August 24, 2016 (specifically July 26, 2016; July 27, 2016; July 30, 2016; August 3, 2016, August 4, 2016; August 5, 2016, August 6, 2017; August 8, 2016; August 9, 2016; August 24, 2016). This area includes: all land areas within one-thousand (1,000) feet of Mean High Water (MHW) and within one-thousand (1,000) feet of state-regulated tidal wetlands; offshore areas at least two-thousand (2,000) feet waterward of either the mainland or island land masses in order to clearly depict the interface between the shore and coastal waters; all offshore islands within the borders of the State of Connecticut including: Goose Island and Falkner Island (offshore of Branford); Calf Islands and Great Captain Island (offshore of Greenwich); Norwalk Islands (offshore of Norwalk); Thimble Islands (offshore of Branford); Sandy Point (offshore of Stonington); all islands in the Connecticut part of Fishers Island Sound; and the Connecticut River from Long Island Sound to the Connecticut/Massachusetts state line.
The natural color orthoimagery was created to support NOAA Office for Coastal Management in partnership with CT Department of Energy & Environmental Protection (CTDEEP) Office of Long Island Sound Programs.
Supplemental information:
Imagery was collected during Mean Low Tide - Mean Lower Low Tide +/- 1 hours. Imagery acquisition occurred while no snow is on the ground, rivers are within their channels at or below normal levels, when the sky is sufficiently clear of clouds, smoke and atmospheric haze. 
Dataset credit:
State of Connecticut – Department of Housing Community Development Block Grant – Disaster Recovery October 1 – December 31, 2016, NOAA Office for Coastal Management, CT Department of Energy & Environmental Protection Land & water resource Division, Woolpert, LLC
Point Of Contact
Contact information for the individual or organization that is knowledgeable about the data.
Organization: Land & Water Resources Division - Coastal Resources Section Bureau of Water Protection and Land Reuse Connecticut Department of Energy and Environmental Protection
Person: Kevin P. O’Brien
Phone: 860.424.3432
Address type: mailing and physical
79 Elm Street
City: Hartford
State or Province: CT
Postal code: 06106-5127
Country: USA
Data Type
How the data are represented, formatted and maintained by the data producing organization.
Data type: remote-sensing image
Time Period of Data
Time period(s) for which the data corresponds to the currentness reference.
Date: 20160808
Date: 20160824
Currentness reference:
ground condition
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.
Keywords: Connecticut, Long Island Sound, Color Infrared, Orthophoto
Keywords: Connecticut
Keyword thesaurus: None
Data Access Constraints
Restrictions and legal prerequisites for accessing or using the data after access is granted.
Access constraints:
Use constraints:
While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. We do request that you credit the National Oceanic and Atmospheric Administration (NOAA) when you use these photos in a report, publication, or presentation.
+ 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.
Coordinate System Details
Map projection
Map projection name: NAD 1983 StatePlane Connecticut FIPS 0600 Feet
Standard parallel: 41.2
Standard parallel: 41.86666666666667
Longitude of central meridian: -72.75
Latitude of projection origin: 40.83333333333334
False easting: 999999.999996
False northing: 499999.999998
Planar Coordinate Information
Planar coordinate encoding method: row and column
Coordinate representation:
Abscissa resolution: 0.5
Ordinate resolution: 0.5
Planar distance units: foot_us
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
The geographic areal domain of the data that describes the western, eastern, northern, and southern geographic limits of data coverage.
Bounding Coordinates
In Unprojected coordinates (geographic)
West-73.666797 (longitude)
East-73.645500 (longitude)
North40.992018 (latitude)
South40.970719 (latitude)
+ Data Structure and Attribute Information
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: Raster
Raster Information
Type and number of raster spatial objects in the data.
Raster object type: Pixel
Cell information
Number of cells on x-axis: 11600
Number of cells on y-axis: 15400
+ Data Quality and Accuracy Information
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:
All formatted data cover the entire area specified for this project and are validated using a combination of commercial imagery processing software, GIS software, and proprietary programs to ensure proper formatting and loading prior to delivery.
Completeness report:
The imagery data is visually inspected for completeness to ensure that there are no void areas or missing data.
Positional Accuracy
Accuracy of the positional aspects of the data.
Horizontal accuracy report:
Woolpert utilized 39 ground control points as QA/QC test points to validate the horizontal accuracy of the orthoimagery.  The results of the assessment indicated a horizontal accuracy of the following: NSSDA Accuracy of 1.93-feet at a 95% Confidence Level.
+ Data Source and Process Information
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 Leica ADS80-SH81/82 Airborne Digital Sensor is a push-broom geometry sensor, collecting 12-bit data with 12,000 pixel swath coverage with up to a 5-centimeter spatial resolution. The sensor is capable of collecting multiple spectral bands and angles simultaneously. Leica’s ADS80 collects seven bands of imagery simultaneously: three panchromatic CCD lines capture information in the forward, nadir and backward views from the aircraft, while four multispectral lines capture data in the red, green, blue, and near color infrared band. The imagery for this task order was acquired using the Leica ADS80-SH81/82 multispectral scanner. The ADS80-SH81/82 utilizes the Leica’s IPAS20 direct positioning and orientation system that is based on airborne GPS and inertial measurement unit (IMU) technology. The IPAS20 data were reduced using Leica’s IPAS Pro v1.3 software package. All of the source imagery was processed using the Leica XPRO (V5.2) software package. This package provides the capability to perform digital image processing, aerial triangulation, and image rectification. The strips of imagery were ortho rectified to client provided lidar digital elevation model (DEM) data. The individual rectified strips of ortho rectified imagery were then mosaicked together to form a seamless imagery database over the entire task order area using the OrthoVista software (V4.5) by Inpho GmbH. The final digital orthophoto imagery (DOI) were extracted using OrthoVista.
Process date: 20160726
+ Data Distribution Information
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:
Distribution liability:
The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and within the limitations of the data for which it was requested and prepared, in general, and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data. It is not appropriate to use the related graphics as data. Woolpert gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from a Woolpert server, and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully upon Woolpert’s computer system, no warranty, expressed or implied, is made regarding the utility of the data on another system, or for general or scientific purposes; nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
Distribution Point of Contact
Contact information for the individual or organization distributing the data.
Organization: National Oceanic and Atmospheric Administration (NOAA)
Phone: 843-740-1200
Address type: mailing and physical
2234 South Hobson Avenue
City: Charleston
State or Province: SC
Postal code: 29405
Country: USA
Standard Order Process
Common ways in which data may be obtained.
Digital form:
Format name: GeoTIFF
Digital transfer option:
Online option:
Computer information:
Network address:
Network resource name: http://www.csc.noaa.gov/dataviewer
Fees: Uknown
+ Metadata Reference
Metadata Date
Dates associated with creating, updating and reviewing the metadata.
Last updated: 20170710
Metadata Point of Contact
Contact information for the individual or organization responsible for the metadata information.
Organization: National Oceanic and Atmospheric Administration (NOAA)
Phone: 843-740-1200
Address type: mailing and physical
2234 South Hobson Avenue
City: Charleston
State or Province: SC
Postal code: 29405
Country: USA
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
FGDC Plus Metadata Stylesheet
Stylesheet: FGDC Plus Stylesheet
File name: FGDC Plus.xsl
Version: 2.3
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.